Toyota RAV4 manuals

Toyota Sienna Service Manual: Circuit inspection

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

Item Description
Circuit Description The major role, operation of the circuit and its component parts are explained.
Diagnostic Trouble Code No. and Detection item Indicates the diagnostic trouble codes, diagnostic trouble code settings and suspected areas for 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.

Wire colors are indicated by an alphabetical code. B = Black, L = Blue, R = Red, BR = Brown, LG = Light Green, V = Violet, G = Green, O = Orange, W = White, GR = Gray, P = Pink, Y = Yellow, SB = Sky Blue The first letter indicates the basic wire color and the second letter indicates the color of the stripe.

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.
Indicates the condition of the connector of the ECU during the check Connector being checked is connected.

Connections of tester are indicated by (+) or (-) after the terminal name.

Connector being checked is disconnected.

The 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 still occurs, use the Problem Symptoms Table. The suspected areas (circuits or parts) for each problem symptoms are in th ...

Terms
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Other materials:

Short to GND in Front Passenger Side Squib 2nd Step Circuit
DTC B1187/55 Short to GND in Front Passenger Side Squib 2nd Step Circuit DESCRIPTION The front passenger side squib 2nd step circuit consists of the center airbag sensor assembly and the front passenger airbag assembly. The circuit instructs the SRS to deploy when deployment conditions are ...

Engine Control System Malfunction
DTC C1201/51 Engine Control System Malfunction DESCRIPTION If trouble occurs the engine control system, the ECM transmits the abnormality to the skid control ECU. The skid control ECU set this DTC and the skid control ECU prohibits TRAC and VSC control. INSPECTION PROCEDURE 1 CHECK ENGIN ...

Front No. 1 speaker
COMPONENTS ON-VEHICLE INSPECTION 1. INSPECT FRONT NO.1 SPEAKER HINT: Remove interior parts so that the front No.1 speaker can be seen.  Check the speaker installation. OK: The speaker is securely installed. If the result is not as specified, reinstall the front No.1 spe ...

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