Brief Descriptions
MIL Code: 11**Generic Scan Tool Code: P1391
Scan Tool Fault Message:
- Intermittent Loss of CMP or CKP
Description of Trouble Code:
- Intermittent loss of either camshaft or crankshaft position sensor.
OR
Scan Tool Fault Message:
- No Crank Reference Signal at PCM
Description of Trouble Code:
- No crank reference signal detected during engine cranking.
MIL Code: 12*
Generic Scan Tool Code: None
Scan Tool Fault Message:
- Battery Disconnect
Description of Trouble Code:
- Direct battery input to PCM was disconnected within the last 50 Key-on cycles.
MIL Code: 13**
Generic Scan Tool Code: P1297
Scan Tool Fault Message:
- No Change in MAP From Start to Run
Description of Trouble Code:
- No difference recognized between the engine MAP reading and the barometric (atmospheric) pressure reading from start-up.
MIL Code: 14**
Generic Scan Tool Code: P0107
Scan Tool Fault Message:
- MAP Sensor Voltage Too Low
Description of Trouble Code:
- MAP sensor input below minimum acceptable voltage.
OR
Generic Scan Tool Code: P0108
Scan Tool Fault Message:
- MAP Sensor Voltage Too High
Description of Trouble Code:
- MAP sensor input above maximum acceptable voltage.
OR
Generic Scan Tool Code: P1296
Scan Tool Fault Message:
- No 5 Volts to MAP Sensor
Description of Trouble Code:
- MAP sensor output voltage too low for barometric pressure after key off.
MIL Code: 15**
Generic Scan Tool Code: P0500
Scan Tool Fault Message:
- No Vehicle Speed Sensor Signal
Description of Trouble Code:
- No vehicle speed sensor signal detected during road load conditions.
MIL Code: 16*
Generic Scan Tool Code: None
Scan Tool Fault Message:
- Knock Sensor Circuit
Description of Trouble Code:
- No input from knock sensor.
MIL Code: 17**
Generic Scan Tool Code: P0125
Scan Tool Fault Message:
- Closed Loop Temp Not Reached
Description of Trouble Code:
- Closed loop operation temperature not reached after 10 minutes.
OR
Scan Tool Fault Message:
- Engine Cold Too Long
Description of Trouble Code:
- Engine does not reach operating temperature within 20 minutes with a vehicle speed signal.
MIL Code: 21**
Generic Scan Tool Code: P0131
Scan Tool Fault Message:
- Upstream O2S Shorted to Ground
Description of Trouble Code:
- Tested after key off.
OR
Generic Scan Tool Code: P0132
Scan Tool Fault Message:
- Upstream O2S Shorted to Voltage
Description of Trouble Code:
- Upstream oxygen sensor input voltage maintained above the normal operating range.
OR
Generic Scan Tool Code: P0133
Scan Tool Fault Message:
- Upstream O2S Response
Description of Trouble Code:
- Upstream oxygen sensor response slower than minimum required switching frequency or value does not go above 0.67 volts.
OR
Generic Scan Tool Code: P0134
Scan Tool Fault Message:
- Upstream 02S Stays at Center
Description of Trouble Code:
- Neither rich or lean condition detected from the upstream oxygen sensor input.
OR
Generic Scan Tool Code: P0135
Scan Tool Fault Message:
- Upstream 02S Heater Failure
Description of Trouble Code:
- Upstream oxygen sensor heating element circuit malfunction tested affer key off.
OR
Generic Scan Tool Code: P0137
Scan Tool Fault Message:
- Downstream 02S Shorted to Ground
Description of Trouble Code:
- Tested after key off.
OR
Generic Scan Tool Code: P0138
Scan Tool Fault Message:
- Downstream 02S Shorted to Voltage
Description of Trouble Code:
- Downstream oxygen sensor input voltage maintained above the normal operating range.
OR
Generic Scan Tool Code: P0139
Scan Tool Fault Message:
- Downstream 02S Response
Description of Trouble Code:
- Downstream oxygen sensor does not match required response, rich at WOT or lean at fuel shutoff.
OR
Generic Scan Tool Code: P0140
Scan Tool Fault Message:
- Downstream 02S Signal Inactive
Description of Trouble Code:
- Neither rich or lean condition detected from the downstream oxygen sensor.
OR
Generic Scan Tool Code: P0141
Scan Tool Fault Message:
- Downstream 025 Heater Failure
Description of Trouble Code:
- Downstream oxygen sensor heating element circuit malfunction tested after key off.
MIL Code: 22**
Generic Scan Tool Code: P0117
Scan Tool Fault Message:
- ECT Sensor Voltage Too Low
Description of Trouble Code:
- Engine coolant temperature sensor input below minimum acceptable voltage.
OR
Generic Scan Tool Code: P0118
Scan Tool Fault Message:
- ECT Sensor Voltage Too High
Description of Trouble Code:
- Engine coolant temperature sensor input above maximum acceptable voltage.
MIL Code: 23**
Generic Scan Tool Code: P0112
Scan Tool Fault Message:
- Intake Air Temp Sensor Voltage Low
Description of Trouble Code:
- Intake air temperature sensor input below the maximum acceptable voltage.
OR
Generic Scan Tool Code: P0113
Scan Tool Fault Message:
- Intake Air Temp Sensor Voltage High
Description of Trouble Code:
- Intake air temperature sensor input above the minimum acceptable voltage.
MIL Code: 24**
Generic Scan Tool Code: P0121
Scan Tool Fault Message:
- TPS Voltage Does Not Agree With MAP
Description of Trouble Code:
- TPS signal does not correlate to MAP sensor.
OR
Generic Scan Tool Code: P0122
Scan Tool Fault Message:
- Throttle Position Sensor Voltage Low
Description of Trouble Code:
- Throttle position sensor input below the minimum acceptable voltage.
OR
Generic Scan Tool Code: P0123
Scan Tool Fault Message:
- Throttle Position Sensor Voltage High
Description of Trouble Code:
- Throttle position sensor input above the maximum acceptable voltage.
OR
Generic Scan Tool Code: P1295
Scan Tool Fault Message:
- No 5 Volts to TPS Sensor
Description of Trouble Code:
- Throttle voltage too low while operating at part throttle.
MIL Code: 25**
Generic Scan Tool Code: P0505
Scan Tool Fault Message:
- Idle Air Control Motor Circuits
Description of Trouble Code:
- A shorted or open condition detected in one or more of the idle air control motor circuits.
OR
Generic Scan Tool Code: P1294
Scan Tool Fault Message:
- Target Idle Not Reached (+/-3OO rpm)
Description of Trouble Code:
- Idle air control motor at zero for more than 20 seconds or engine speed does not equal control speed.
MIL Code: 27**
Generic Scan Tool Code: P0201
Scan Tool Fault Message:
- Injector #1 Control Circuit
Description of Trouble Code:
- Injector #1 does not respond electrically to the control signal.
OR
Generic Scan Tool Code: P0202
Scan Tool Fault Message:
- Injector #2 Control Circuit
Description of Trouble Code:
- Injector #2 does not respond electrically to the control signal.
OR
Generic Scan Tool Code: P0203
Scan Tool Fault Message:
- Injector #3 Control Circuit
Description of Trouble Code:
- Injector #3 does not respond electrically to the control signal.
OR
Generic Scan Tool Code: P0204
Scan Tool Fault Message:
- Injector #4 Control Circuit
Description of Trouble Code:
- Injector #4 does not respond electrically to the control signal.
MIL Code: 31**
Generic Scan Tool Code: P0441
Scan Tool Fault Message:
- Evap Purge Flow Monitor Failure
Description of Trouble Code:
- Insufficient vapor flow detected during evaporative emission system operation at idle.
OR
Generic Scan Tool Code: P0443
Scan Tool Fault Message:
- EVAP Solenoid Circuit
Description of Trouble Code:
- An open or shorted condition detected in the duty cycle purge solenoid circuit.
MIL Code: 33*
Scan Tool Fault Message:
- A/C Clutch Relay Circuit
Description of Trouble Code:
- An open or shorted condition detected in the A/C clutch relay circuit.
OR
Scan Tool Fault Message:
- A/C Pressure Sensor Volts Too High
Description of Trouble Code:
- A/C pressure transducer input above the maximum acceptable voltage.
OR
Scan Tool Fault Message:
- A/C Pressure Sensor Volts Too Low
Description of Trouble Code:
- A/C pressure transducer input below the minimum acceptable voltage.
MIL Code: 34*
Scan Tool Fault Message:
- Speed Control Solenoid Circuits
Description of Trouble Code:
- An open or shorted condition detected in the Speed Control vacuum or vent solenoid circuits.
OR
Scan Tool Fault Message:
- Speed Control Switch Always Low
Description of Trouble Code:
- Speed Control switch input below the minimum acceptable voltage.
OR
Scan Tool Fault Message:
- Speed Control Switch Always High
Description of Trouble Code:
- Speed Control switch input above the maximum acceptable voltage.
MIL Code: 35****
Generic Scan Tool Code: P1489
Scan Tool Fault Message:
- High Speed Fan CTRL Relay Circuit
Description of Trouble Code:
- An open or shorted condition detected in the high speed radiator fan relay control circuit.
OR
Generic Scan Tool Code: P1490
Scan Tool Fault Message:
- Low Speed Fan CTRL Relay Circuit
Description of Trouble Code:
- An open or shorted condition detectedin the low speed radiator fan relay control circuit.
MIL Code: 41***
Scan Tool Fault Message:
- Generator Field Not Switching Properly
Description of Trouble Code:
- An open or shorted condition detected in the generator field control circuit.
MIL Code: 42*
Scan Tool Fault Message:
- Fuel Pump Relay Control Circuit
Description of Trouble Code:
- An open or shorted condition detected in the fuel pump relay control circuit
OR
Scan Tool Fault Message:
- Auto Shutdown Relay Control Circuit
Description of Trouble Code:
- An open or shorted condition detected in the auto shutdown relay circuit.
OR
Scan Tool Fault Message:
- No ASD Relay Output Voltage at PCM
Description of Trouble Code:
- No ASD output voltage sensed when the ASD relay is energized.
OR
Scan Tool Fault Message:
- Fuel Level Sending Unit Volts Too Low
Description of Trouble Code:
- Open circuit between Body Controller and fuel gauge sending unit.
OR
Scan Tool Fault Message:
- Fuel Level Sending Unit Volts Too High
Description of Trouble Code:
- Circuit shorted to voltage between Body Controller and fuel gauge sending unit.
OR
Scan Tool Fault Message:
- Fuel Level Unit No Change Over Miles
Description of Trouble Code:
- No movement of fuel level sender detected.
MIL Code: 43****
Generic Scan Tool Code: P0300
Scan Tool Fault Message:
- Multiple Cylinder Misfire
Description of Trouble Code:
- Misfire detected in multiple cylinders.
OR
Generic Scan Tool Code: P0301
Scan Tool Fault Message:
- Cylinder #1 Misfire
Description of Trouble Code:
- Misfire detected in cylinder #1.
OR
Generic Scan Tool Code: P0302
Scan Tool Fault Message:
- Cylinder #2 Misfire
Description of Trouble Code:
- Misfire detected in cylinder #2.
OR
Generic Scan Tool Code: P0303
Scan Tool Fault Message:
- Cylinder #3 Misfire
Description of Trouble Code:
- Misfire detected in cylinder #3.
OR
Generic Scan Tool Code: P0304
Scan Tool Fault Message:
- Cylinder #4 Misfire
Description of Trouble Code:
- Misfire detected in cylinder #4.
OR
Generic Scan Tool Code: P0351
Scan Tool Fault Message:
- Ignition Coil #1 Primary Circuit
Description of Trouble Code:
- Peak primary circuit current not achieved with maximum dwell time.
OR
Generic Scan Tool Code: P0352
Scan Tool Fault Message:
- Ignition Coil #2 Primary Circuit
Description of Trouble Code:
- Peak primary circuit current not achieved with maximum dwell time.
MIL Code: 44***
Scan Tool Fault Message:
- Ambient Temp Sensor
Description of Trouble Code:
- No ambient temperature sensor input. Also used as an input to the TCM.
MIL Code: 46***
Scan Tool Fault Message:
- Charging System Voltage Too High
Description of Trouble Code:
- Battery voltage sense input above target charging voltage during engine operation.
MIL Code: 47***
Scan Tool Fault Message:
- Charging System Voltage Too Low
Description of Trouble Code:
- Battery voltage sense input below target charging during engine operation. Also, no significant change detected in battery voltage during active test of generator output circuit.
MIL Code: 51**
Generic Scan Tool Code: P0171
Scan Tool Fault Message:
- Fuel System Lean
Description of Trouble Code:
- A lean air/fuel mixture has been indicated by an abnormally rich correction factor.
MIL Code: 52**
Generic Scan Tool Code: P0172
Scan Tool Fault Message:
- Fuel System Rich
Description of Trouble Code:
- A rich air/fuel mixture has been indicated by an abnormally lean correction factor.
MIL Code: 53****
Generic Scan Tool Code: P0605
Scan Tool Fault Message:
- Internal Controller Failure
Description of Trouble Code:
- PCM Internal fault condition detected.
OR
Generic Scan Tool Code: P0605
Scan Tool Fault Message:
- PCM Failure SPI Communications
Description of Trouble Code:
- PCM Internal fault condition detected.
MIL Code: 54*
Generic Scan Tool Code: P0340
Scan Tool Fault Message:
- No Cam Signal at PCM
Description of Trouble Code:
- No camshaft signal detected during engine cranking.
MIL Code: 55*
Description of Trouble Code:
- Completion of fault code display on Check Engine lamp.
MIL Code: 62*
Scan Tool Fault Message:
- PCM Failure SRI Mile Not Stored
Description of Trouble Code:
- Unsuccessful attempt to update EMR mileage in the PCM EEPROM.
MIL Code: 63*
Scan Tool Fault Message:
- PCM Failure EEPROM Write Denied
Description of Trouble Code:
- Unsuccessful attempt to write to an EEPROM location by the PCM.
MIL Code: 64****
Generic Scan Tool Code: P0420
Scan Tool Fault Message:
- Catalytic Converter Efficiency Failure
Description of Trouble Code:
- Catalyst efficiency below required level.
MIL Code: 65****
Generic Scan Tool Code: P0551
Scan Tool Fault Message:
- Power Steering Switch Failure
Description of Trouble Code:
- Power steering high pressure seen at high speed.
MIL Code: 66*
Scan Tool Fault Message:
- No CCD Message From Body Controller
Description of Trouble Code:
- No communication from body control module.
MIL Code: 71*
Generic Scan Tool Code: P1496
Scan Tool Fault Message:
- 5 Volt Output Low
Description of Trouble Code:
- Internal PCM check for 5 volts.
MIL Code: 77*
Scan Tool Fault Message:
- Speed Control Power Circuit
Description of Trouble Code:
- Malfunction detected with power feed to speed control servo solenoids.
* Check Engine Lamp will not illuminate at all times if this Diagnostic Trouble Code was recorded. Cycle Ignition key as described in manual and observe code flashed by Check Engine lamp.
** Check Engine Lamp will illuminate during engine operation if this Diagnostic Trouble Code was recorded.
***Generator Lamp illuminated
****Check Engine Lamp will illuminate during engine operation for 2.OL only if this DTC is recorded.