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Check Engine Light Flash Codes (OBD I)
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Odometer Codes 1997 and newer (OBD II)
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DRB Scan Tool Display
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Description of Problem
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12
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Battery power to PCM was disconnected
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15
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No vehicle speed sensor signal
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No vehicle speed sensor signal detected during driving conditions
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14
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P0107
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MAP Sensor voltage too low
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MAP Sensor input below minimum acceptable voltage
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14
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P0108
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MAP Sensor voltage too high
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MAP sensor input above maximum acceptable voltage.
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23
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P0112
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Intake air temp sensor voltage low
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intake air temp sensor input below the maximum acceptable voltage
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23
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P0113
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Intake air temp sensor voltage high
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intake air temp sensor input above the minimum acceptable voltage
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22
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P0117
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ECT Sensor voltage too low.
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Engine coolant temperature sensor input below minimum acceptable voltage.
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22
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P0118
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ECT Sensor voltage too high
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Engine coolant temperature sensor input above maximum acceptable voltage.
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24
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P0121
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TPS voltage does not agree with MAP
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TPS signal does not correlate to MAP Sensor
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24
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P0122
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Throttle position sensor voltage low
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Throttle position sensor input below the minimum acceptable voltage.
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24
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P0123
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Throttle position sensor voltage high
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Throttle position sensor input above the Maximum acceptable voltage.
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17
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P0125
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Closed loop temp not reached
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Engine does not reach 20 deg F within 5 minutes with a vehicle speed signal
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P0129 or P1197
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Cat mon slow O2 1/2
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A slow switching oxygen sensor has been detected in bank 1/2 during catalyst monitor test
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21
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P0131
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Left bank and upstream O2S Shorted to ground
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O2 voltage too low, tested after cold start
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21
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P0132
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Left upstream O2S Shorted to voltage
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Oxygen sensor input voltage maintained above the normal operating range.
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21
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P0133 or P0152
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O2 1/1 slow response
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Oxygen sensor response slower than minimum required switching frequency
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21
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P0133 or P1195
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Cat mon slow O2 1/1
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A slow switching oxygen sensor has been detected in bank 1/1 during catalyst monitor test
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21
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P0135
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O2 1/1 heater circuit
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Upstream oxygen sensor heating element circuit malfunction
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21
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P0137
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Downstream, left bank downstream and Pre-Catalyst O2S shorted to ground
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O2 sensor voltage too low, tested after cold start.
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21
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P0138
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left bank downstream or downstream and pre-catalyst O2S shorted to voltage
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Oxygen sensor input voltage maintained above the normal operating range.
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P0139
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O2 1/1 slow response
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oxygen sensor response slower than minimum required switching frequency
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P0141
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O2 1/2 heater circuit
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Oxygen sensor heating element circuit malfunction
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P0147
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O2 1/3 heater circuit
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Oxygen sensor heater element malfunction
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P0151
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O2 2/1 voltage low
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Oxygen sensor input voltage maintained below normal operating range
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P0152
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O2 2/1 shorted high
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Oxygen input voltage sustained above the normal operating range.
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P0153 or P1196
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Cat mon slow O2 2/1
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A slow switching oxygen sensor has been detected in bank 2/1 during catalyst monitor test
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P0153
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O2 2/1 slow response
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Oxygen sensor response slower than minimum required switching frequency
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P0154
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O2 2/1 signal inactive
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No signal at O2 2/1 sensor
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P0155
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O2 2/1 heater circuit
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Oxygen sensor heater element malfunction
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P0157
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O2 2/1 voltage low
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Oxygen sensor input voltage maintained below normal operating range
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P0158
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O2 2/2 shorted high
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Oxygen sensor input voltage maintained above the normal operating range.
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P0159
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O2 2/1 slow response
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Oxygen sensor response slower than minimum required switching frequency
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P0161
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O2 2/1 heater circuit
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Oxygen sensor heater element malfunction
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47
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P0162
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Charging System voltage too low.
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Battery voltage sense input below target charging during engine operation. Also , no significant change detected of generator output circuit
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51
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P0171
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Right rear (or just) fuel system lean
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A lean air/fuel mixture has been indicated by an abnormally rich correction factor
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52
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P0172
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Left bank or fuel system rich
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A rich air/fuel mixture has been indicated by an abnormally lean correction factor
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P0174
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Fuel system 2/1 lean
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A lean air/fuel mixture has been indicated by an abnormally rich correction factor
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P0175
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Fuel system 2/1 rich
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A rich air/fuel mixture has been indicated by an abnormally lean correction factor
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27
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P0201
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Injector #1 control circuit
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Injector #1 output drive does not respond properly to the control signal.
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27
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P0202
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Injector #2 Control Circuit
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Injector #2 output drive does not respond properly to the control signal.
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27
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P0203
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Injector #3 Control Circuit
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Injector #3 output drive does not respond properly to the control signal.
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27
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P0204
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Injection #4 control circuit
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Injector #4 output driver does not respond properly to the control signal.
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27
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P0205
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Injector #5 control circuit
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Injector #5 output driver does not respond properly to the control signal
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27
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P0206
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Injector #6 control circuit
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Injector #6 output driver does not respond properly to the control signal.
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27
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P0207
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Injector #7 control circuit
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Injector #7 does not respond properly to the control signal.
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27
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P0208
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Injector #8 control circuit
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Injector #8 does not respond properly to the control signal.
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43
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P0300
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Multiple cylinder Mis-fire
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Misfire detected in multiple cylinders
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43
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P0301
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Cylinder #1 misfire
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Misfire detected in cylinder #1
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43
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P0302
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Cylinder #2 misfire
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Misfire detected in cylinder #2
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43
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P0303
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Cylinder #3 misfire
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Misfire detected in cylinder #3
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43
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P0304
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Cylinder #4 misfire
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Misfire detected in cylinder #4
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43
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P0305
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Cylinder #5 Misfire
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Misfire detected in cylinder #5
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43
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P0306
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Cylinder #6 Misfire
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Misfire detected in cylinder #6
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43
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P0307
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Cylinder # 7 Misfire
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Misfire detected in cylinder #7
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43
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P0308
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Cylinder #8 Misfire
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Misfire detected in cylinder #8
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11
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P0320
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No Crank Reference signal at PCM
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No crank reference sign detected during engine cranking.
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54
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P0340
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No cam singal at PCM
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No camshaft singal detected during engine cranking
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P0351
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Ignition coil #1 Primary circuit
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Peak primary circuit current not achieved with maximum dwell time.
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72
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P0420
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Catalyst 1/1 Effic
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Catalyst efficiency below required level.
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P0432
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Catalyst 2/1 EFFIC
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Catalyst 2/1 efficiency below required level
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31
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P0441
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Incorrect purge flow
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Insufficient or excessive vapor flow detected during evaporative emission system operation
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31
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P0442
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Evap leak monitor small leak detected
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a small leak has been detected by the leak detection monitor (NOTE: Check your gas cap on this one)
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31
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P0443
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EVAP Purge Solenoid Circuit
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An open or shorted condition detected in the duty cycle purge solenoid circuit.
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31
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P0455
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Evap leak monitor large leak detected
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The leak detection monitor in unable to pressurize Evap system, indicating a large leak. (Again check the gas cap)
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42
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P0460
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Fuel level unit no change over miles
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No movement of fuel level sender detected.
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42
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P0462
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Fuel level sending unit volts too low
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Open circuit between PCM and fuel gauge sending unit
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42
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P0463
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Fuel sending unit volt too high
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Circuit shorted to voltage between PCM and fuel gauge sending unit.
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25
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P0505
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Idle air control motor circuits
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A shorted or open condition detected in one or more of the idle air control motor circuits.
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P0551
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Power steering SW Perf
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Power steering high pressure seen at high speed (2.5L Only)
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53
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P0600
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PCM Failure SPI Communications
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PCM internal fault condition detected.
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53
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P0601
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Internal Controller Failure
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PCM Internal fault condition detected.
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41
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P0622
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Generator Field not switching properly
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An open shorted condition detected in the generator field control circuit.
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33
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P0645
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A/C Clutch relay circuit
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An open or shorted condition detected in the A/C clutch relay circuit.
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45
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P0711
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Trans temp sensor no rise after start
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Sump temp did not rise more that 16 degrees F within 10 minutes when starting temp is below 40 degrees or sump temp is above 260 degrees with coolant below 100 degrees
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45
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P0712
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Trans Temp sensor voltage too low
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Voltage less than 1.55 volts.
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45
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P0713
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Trans temp sensor voltage too high
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Voltage greater than 3.76 volts
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15
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P0720
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Low output Speed sensor RPM above 15 MPH
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Output shaft speed is less than 60 rpm with vehicle speed above 15 MPH
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37
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P0740
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Torq conv clu, no rpm drop at lockup
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Relationship between engine speed and vehicle speed indicates no torque converter clutch engagement (auto transmission only)
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37
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P0743
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Torque converter clutch Soleniod / Trans relay circuits
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An open or shorted condition detected in the torque converter part throttle unlock solienod control circuit (3 speed auto RH trans only)
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37
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P0748
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Governor pressure sol control/trans relay circuits
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Current state of solenoid output port is different than expected
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45
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P0751
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O/D switch pressed (LO) more than 5 min
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Overdrive off switch input too low for more than 5 minutes
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37
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P0753
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Trans 3-4 shift sol/trans Relay Circuits
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Current state of output port for the solenoid is diffrent from expected state
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37
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P0783
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3-4 shift sol. no RPM Drop @ 3-4 shift
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The ratio of engine rpm/output shaft speed did not change beyond on the minimum required.
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17
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P1281
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Engine is cold too long
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Engine did not reach operating temperature within acceptable limits.
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42
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P1282
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Fuel pump relay control circuit
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An open shorted condition detected in the fuel pump relay control circuit
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25
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P1294
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Target idle not reached
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Actual idle speed does not equal target idle speed
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14
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P1296
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No 5 volts to MAP Sensor
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5 Volt output to MAP sensor open
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13
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P1297
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No change in MAP From start to run
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No difference recognized between the engine MAP reading and the barometric (atmospheric) Pressure reading from start up
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42
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P1388
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Auto Shutdown Relay Control Circuit
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An open or shorted condition detected in the auto shutdown relay circuit.
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42
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P1389
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No ASD Relay output voltage at PCM
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An open condition detected in the ASD Relay output circuit.
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11
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P1391
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Intermittent loss of CMP or CKP
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Intermittent loss of either camshaft or crankshaft position sensor
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11
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P1391
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Intermittent loss of CMP or CKP
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Intermittent loss of either camshaft or crankshaft position sensor
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35
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P1491
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Rad fan control relay circuit
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An open or shorted condition detected in the low speed radiator fan relay control circuit (2.5L Only)
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44
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P1492
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Ambient batt temp sen volts too high
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Battery temperature sensor input voltage above an acceptable range
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44
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P1493
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Ambient batt temp sen volts too low
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Battery temperature sensor input voltage below an acceptable range
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31
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P1494
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Leak detection pump SW or mechanical fault
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Leak detection pump switch does not respond to input
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31
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P1495
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Leak detection pump solenoid circuit
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Leak detection pump solenoid circuit fault (open or short)
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46
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P1594
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Charging system voltage too high.
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Battery voltage sense input above target charging during engine operation.
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34
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P1595
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Speed control solenoid circuits
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An open or shorted condition detected in the speed control vacuum or vent solenoid circuits.
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34
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P1596
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MUX S/C Switch High
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Speed control switch input above the maximum acceptable voltage
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34
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P1597
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MUX S/C switch low
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Speed control switch input below the minimum acceptable voltage
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77
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P1683
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SPD CTRLPWR RLY; or S/C 12V driver CKT
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Malfunction detected with power feed to speed control servo solenoids.
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63
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P1696
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PCM Failure EEPROM Write Denied
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Unsuccessful attempt to write to an EEPROM location by the PCM
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37
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P1756
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Governor Pressure not equal to target @ 15-20 PSI
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Governor sensor input not between 10 and 25 psi when required
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37
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P1757
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Governor pressure above 3 psi in gear with 0 MPH
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Governor pressure greater than 3 psi when requested to be 0 psi
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45
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P1762
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Governor pressure sensor too low or too high
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Sensor input greater or less than calibration for 3 consecutive neutral/park occurrences
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45
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P1763
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Governor sensor colts too high
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Voltage greater than 4.89 volts
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45
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P1764
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Governor pressure sensor volts too low
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Voltage less than .10 volts
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37
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P1765
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Trans 12V supply relay ctrl circuit
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Current state of solenoid output port is different than expected
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37
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P1899
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P/N switch stuck in park or gear
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Incorrect input state detected for the park neutral switch auto trans only
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