Toyota 4Runner: Problem Symptoms Table

Toyota 4Runner Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System(for Start Function) / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to the system before inspecting the suspected areas below.

Smart Key System (for Start Function)

Symptom	Suspected Area	See page
Power source mode does not change to on (IG) or on (ACC)	Refer to "Power Source Mode does not Change to ON (IG and ACC)"
Power source mode does not change to on (IG)	Refer to "Power Source Mode does not Change to ON (IG)"
Power source mode does not change to on (ACC)	Refer to "Power Source Mode does not Change to ON (ACC)"
Engine does not start	Refer to "Engine does not Start"

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use these procedures to troubleshoot the push-button start function. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT T ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK POWER MANAGEMENT CONTROL ECU (a) Disconnect the F80 power management control ECU connector. (b) Measure the voltage and resistance according to the value(s) in the table ...

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