Description of On-Board Diagnostics

The transaxle control module contains a built-in self diagnostic system by which malfunctions within the transaxle signal network are detected. By analyzing various signals, the transaxle control module can detect a malfunction and a diagnostic trouble code and/or a fail-safe code is stored in its memory for help in diagnosis.

NOTE:
- As many as ten diagnostic trouble codes, in the sequence of occurrence, can be stored in the Random Access Memory (RAM) incorporated within the control module.
- The same diagnostic trouble code can be stored lust one time.
- If the number of stored diagnostic trouble codes or diagnostic trouble patterns exceeds ten, already stored diagnostic trouble codes will be erased, in sequence beginning with the oldest.
- Do not disconnect the battery until all diagnostic trouble codes or diagnostic trouble patterns have been read out, because all stored diagnostic trouble codes or agnostic trouble patterns will be canceled when the battery is disconnected.
- It the auto transaxle fluid temperature reaches 50°C or above 200 times from the initial memory, the fault code will be erased.
- If the fail-safe system is activated and the transaxle is locked in third gear, the diagnostic trouble code in the Fail-safe Code Description will be stored in the RAM. Three of these fault codes can be stored.
- The cancelation will occur if, with the transaxle locked in 3rd gear, the ignition key is turned to the OFF position, but the diagnostic trouble code is stored in the RAM.

Multifunction Indicator Light (MIL)





A on board diagnostic light comes on to notify the driver that there is any problems on the vehicle. However, when an irregular state returns to normal, the malfunction indicator lamp will go out automatically after 3 driving cycles that have no same fault. Immediately after the ignition switch is turn on, the malfunction indicator light is lit for continuously to indicate that the malfunction indicator light operates normally.
Following items will be indicated by the Malfunction Indicator Lamp (MIL).
- Fluid temperature sensor
- Pulse generator A (PG-A)
- Pulse generator B (PG-B)
- Shift control solenoid valve A (SCSV-A)
- Shift control solenoid valve B (SCSV-B)
- Pressure control solenoid valve (PCSV)
- Damper clutch control solenoid valve (DCCSV)
- Shift stage synchronize
- Ignition pulse
- Throttle position sensor
- Transaxle range switch