System Operation

A: 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

B: 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 below.
If any problem exists, the light continues flashing as shown in the "Abnormal" diagram below.





C: DIAGNOSTIC TROUBLE CODE (DTC)

D: 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.