Symptom Related Diagnostic Procedures
HEADLIGHT POWER-SUPPLY CIRCUITDescription of operation
Power voltage is always supplied to the headlight relay.
Checking the headlight power-supply circuit (Disconnect the headlight relay)
HEADLIGHT ACTIVATION CIRCUIT
Description of operation
The ECU transistor is turned ON if the vehicles door etc. are opened without use of the key. This energizes the headlight relay to active the headlight.
Checking the headlight activation circuit (Disconnect the connector of the ECU, then short-circuit terminal connector 2, and activate the headlight relay.)