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Vehicle Diagnostic Self-TestSelf-Test Procedure:Hold in the trip odometer reset button while turning the ignition key to run will start a self-test, with a readout on the odometer. It will also activate the instrument panels, one at a time.The test will run for approximately 60 seconds, then automatically shut down. If everything is working correctly you should not see any faults. If you notice a fault refer to the corresponding Chrysler fault codes below. They may help you determine the nature of the problem. |
Error Codes | Description of Error |
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- No ignition reference signal detected during cranking - Timing belt skipped one or more teeth - Loss of either camshaft or crankshaft position sensor |
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- Battery or computer recently disconnected |
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- MAP sensor or vacuum line may not be working |
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- MAP sensor voltage below .16V or over 4.96V |
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- No speed/distance sensor signal |
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- Loss of battery voltage detected with engine running |
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- Engine stays cool too long (bad thermostat or coolant sensor?)
- (1985 turbo only): knock sensor circuit |
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- Oxygen sensor signal doesn't change (stays at 4.3-4.5V) |
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- Coolant sensor signal out of range |
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- Incoming air temperature sensor may be bad |
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- Throttle position sensor over 4.96V |
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- Automatic Idle Speed (AIS) motor driver circuit shorted or target idle not reached |
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- Peak injector circuit voltage has not been reached |
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- Injector circuit isn't switching when it's told to (TBI) - (MPI) injector circuit #1 not switching right - (turbo) injector circuit #2 not switching right - Injector output driver not responding check computer connections |
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- Bad evaporator purge solenoid circuit or driver |
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- (1984 only) power loss/limited lamp or circuit - EGR gases not working (1988) - check vacuum, valve - Computer didn't see change in air/'fuel ratio when EGR activated - check valve. |
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- Air conditioning clutch relay circuit open or shorted. |
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- (1984-86) EGR solenoid circuit shorted or open - (1987-1991) speed control shorted or open |
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- Cooling fan relay circuit open or shorted - (trucks) idle switch motor fault - check connections |
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- (turbo) Wastegate control circuit open or shorted - (3.9/5.2 RWD) solenoid coil circuit (air switching) - (Turbo IV) #3 Vent Solenoid open/short |
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- Shift indicator light failure, 5-speed - Part throttle lock/unlock solenoid driver circuit (87-89) - Solenoid coil circuit (85-89 Turbo I-IV) - Trans temperature sensor voltage low |
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- Alternator field control circuit open or shorted |
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- Automatic shutdown relay circuit open or shorted - Fuel pump relay control circuit - Fuel level unit - no change over miles - Z1 voltage missing when autoshutdown circuit energized |
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- Peak primary coil current not achieved with max dwell time - Cylinder misfire - Problem in power module to logic module interface |
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- No FJ2 voltage present at logic board - Logic module self-diagnostics indicate problem - Battery temperature out of range |
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- Turbo boost limit exceeded (engine was shut down by logic module) |
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- Battery voltage too high during charging or charging system voltage too low |
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- Battery voltage too low and alternator output too low |
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- Oxygen sensor stuck at lean position (lean condition) - Internal logic module fault ('84 turbo only) |
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- Oxygen sensor stuck at rich position - Internal logic module fault ('84 turbo only) |
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- Logic module internal problem |
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- No sync pickup signal during engine rotation (turbo only) - Internal logic module fault ('84 turbo only) |
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- End of codes |
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- Sensor open or shorted |
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- EMR mileage cannot be stored in EEPROM - PCM failure SRI mile not stored |
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- Controller cannot write to EEPROM |
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- Catalytic converter efficiency failure |
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- Power steering switch failure |
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- Start of test (not usually given, don't expect it) |
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