Diagnostics For Failed On-Board Diagnostics

A: AT OIL TEMP INDICATOR LIGHT
Diagnosis:
- The AT OIL TEMP indicator light circuit is open or shorted.
Trouble Symptom:
- When ignition switch is turned to ON (engine OFF), AT OIL TEMP indicator light does not illuminate TROUBLE 1
- When on-board diagnostics is performed, AT OIL TEMP indicator light remains illuminated TROUBLE 2





Wiring Diagram:











B: CONTROL MODULE POWER SUPPLY AND GROUND LINE





Wiring Diagram: