| ModeL | Year | Engine identification | System |
|---|---|---|---|
| Expo/LRV 2.4L – Federal | 1996 | 4G64 | MPI |
| Expo/LRV 2.4L FWD – California | 1995-96 | 4G64 | MPI |
| Mirage 1.5/1.8L | 1995-02 | 4G15/4G93 | MPI |
General information
- Engine control module (ECM) incorporates self-diagnosis function.
- Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
- ECM operates in backup mode if sensors fail, to enable vehicle to be driven to workshop.
Accessing
- Trouble codes can be displayed by using a Scan Tool connected to the data link connector (DLC):
o Expo/LRV – [1]o Mirage – [2]
Erasing
- Trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows:
- Ensure ignition switched OFF.
- Disconnect battery ground cable for 30 seconds minimum.
- Reconnect battery ground cable.
- Repeat checking procedure to ensure no data remains in ECM fault memory.
NOTE: Disconnecting battery ground lead will erase trouble codes but may also erase memory from electronic units such as radio.
Trouble code identification
OBD-11 code | Fault location | Probable cause |
PO,P2,UO | Refer to OBD-11 trouble code tables | – |
P1300 | Ignition timing adjustment – circuit malfunction | Wiring short to ground, ECM |
P1400 | Manifold absolute pressure (MAP) sensor- circuit malfunction | Wiring, MAP sensor, ECM |
P1443 | Evaporative emission (EVAP) canister purge system – control valve 2 circuit malfunction | Wiring, EVAP solenoid 2, ECM |
P1500 | Generator system – circuit malfunction | Wiring, generator system, ECM |
P1600 | AT to ECM – signal failure | Wiring, TCM, ECM |
P1603 | Engine control module (ECM) – battery supply voltage | Wiring, ECM |
P1715 | Automatic transmission speed sensors A and 8 – malfunction | Wiring, TCM, ECM |
P1720 | Vehicle speed sensor (VSS) – circuit malfunction | Wiring, VSS, ECM |
P1750 | AT- torque converter/shift control and pressure control solenoid valves – malfunction | Wiring, torque converter/shift control and pressure control solenoid valves, TCM, ECM |
P1751 | Automatic transmission – control relay malfunction | Wiring, control relay, TCM, ECM |
P1791 | Engine coolant temperature to TCM – signal malfunction | Wiring, TCM, ECM |
P1795 | Throttle position (TP) switch to TCM – signal malfunction | Wiring, TCM, ECM |