Inspection For Short To Power Supply In Circuit

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Disconnect the connector on the module side and the connector on the part side of the circuit to be inspected.

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NOTE:
- For the connector disconnection procedure, refer to the removal/installation procedure for each part.
Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
Switch the ignition ON (engine off or on).
Measure the voltage at the applicable terminal of the module-side or part-side connector.

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If voltage exceeds 0 V:
- To specify the malfunctioning location, go to the next step.
If voltage is 0 V:
- There is no short to power supply in the circuit, therefore the inspection is completed.

Refer to the wiring diagram and verify if there is a common connector between the applicable circuits.

If there is a common connector:

Switch the ignition off.
Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)

Disconnect the common connector and inspect the connector and terminal. (See CONNECTOR INSPECTION .)

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Measure the voltage at each common connector to determine the malfunctioning location.
- Repair or replace the vehicle wiring harness which is shorted to the power supply.

If there is no common connector: