Toyota RAV4 Service Manual: Circuit inspection

Toyota RAV4 Service Manual / Introduction / How to troubleshoot ecu controlled systems / How to proceed with troubleshooting / Circuit inspection

A description of the main areas of each circuit inspection is below.

Item	Description
description	The major role, operation of the circuit and its component parts are explained.
Dtc no., Dtc detection condition, trouble area	Indicates the diagnostic trouble codes, diagnostic trouble code detection conditions, and trouble areas of a problem.
Wiring diagram	This shows a wiring diagram of the circuit. Use this diagram together with electrical wiring diagram to thoroughly understand the circuit.
Inspection procedures	Use the inspection procedures to determine if the circuit is normal or abnormal. If abnormal, use the inspection procedures to determine whether the problem is located in the sensors, actuators, wire harnesses or ecu.
Inspection procedure connector illustrations	Connector being checked is connected: connections of tester are indicated by (+) or (-) after the terminal name. Connector being checked is disconnected: for illustrations of inspections between a connector and body ground, information about the body ground is not shown in the illustration.

Problem symptoms table

When a "normal" code is output during a dtc check but the problem is still occurring, use the problem symptoms table. The suspected areas (circuits or parts) for each problem symptom are ...

Electronic circuit inspection procedure

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Other materials:

Low pitched horn
Components Removal Remove radiator support opening cover (see page et-4) Remove front fender liner lh (see page et-4) Remove front fender liner rh (see page et-4) Remove front bumper cover (see page et-5) Remove low pitched horn Disconnect the horn connector. Remove th ...

Ignition coil
Description Hint: These dtcs indicate malfunctions relating to the primary circuit. If dtc p0351 is set, check no. 1 Ignition coil with igniter circuit. If dtc p0352 is set, check no. 2 Ignition coil with igniter circuit. If dtc p0353 is set, check no. 3 Ignition coil with igniter cir ...

Air outlets and air flow
Upper body Upper body and feet Feet Feet and windshield Switching between outside air and recirculated air modes Press . The mode switches between outside air mode (indicator off) and recirculated air mode (indicator on) each time is pressed. Adjusting the pos ...