Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

Check voltage between terminal PI of ECM connector and body ground.

PREPARATION:

Remove the ECM with the connectors being connected.

Turn the ignition switch ON.

CHECK:

Measure the voltage between terminal PI of the ECM connector and the body ground when the main switch is ON and OFF.

Fig 1: Checking Voltage Between Terminal PI Of ECM Connector And Body Ground

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OK:

IGNITION SWITCH CONDITIONS

Switch Condition	Specified Condition
OFF	10 to 14V
ON	0 to 3V

OK : Proceed to next circuit inspection shown on problem symptoms table (See PROBLEM SYMPTOMS TABLE ).
NG : Go to next step.

Check combination meter (See LOCATION ).
1. NG : Replace combination meter.
2. OK : Check and replace engine ECU (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).