Tacoma 4WD L4-164.4 2693cc 2.7L DOHC (3RZ-FE) (1996)
Malfunction Indicator Lamp: Testing and Inspection
1. The MIL comes on when the ignition switch is turned ON and the engine is not running.
HINT: If the malfunction indicator lamp does not light up, troubleshoot the combination meter.
2. When the engine is started, the malfunction indicator lamp should go off.
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If the lamp remains on, the diagnosis system has detected a malfunction or abnormality in the system.