On-Board Diagnostics System

FUNCTION
The on-board diagnostics system detects and stores in the form of a code a fault that has occurred in any of the following input and output signal systems.

If a fault has been detected, the system tells the fault by causing the AT OIL TEMP warning light to operate as follows:
- Repeated flashing at 4 Hz frequency ... Errors such as battery trouble
- Repeated flashing at 2 Hz frequency ... No faults in the system
- Flashing at different intervals and frequencies ... Diagnostic trouble codes of corresponding faults
- Continued illumination of light ... Fault in inhibitor switch, idle switch, or wiring





OPERATION OF AT OIL TEMP WARNING LIGHT
On starting the engine, the AT OIL TEMP warning light illuminates and then goes out as shown in the "Normal" diagram above. If any problem exists, the warning light continues flashing as shown in the Abnormal diagram above.

Diagnostic Trouble Codes:

SELECT MONITOR
Various sensor and switch data as well as diagnostic trouble codes for faults that are currently present and occurred in the past can be monitored by connecting the select monitor to the select monitor terminal located under the instrument panel.