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:

Removal
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE HINT: (See page EM-34) 2. REMOVE TRANSVERSE ENGINE ENGINE MOUNTING INSULATOR (a) Remove the 3 nuts and transverse engine engine mounting insulator. 3. REMOVE FRONT SUSPENSION ARM SUBASSEMBLY LOWER NO.1 LH (a) Remove the 2 bolts on the front sid ...

Open in Occupant Classification ECU Battery Positive Line
DTC B1794 Open in Occupant Classification ECU Battery Positive Line DESCRIPTION This circuit consists of the occupant classification ECU and the power source circuit (battery, fuse, wire harness). DTC B1794 is recorded when a malfunction is detected in the occupant classification ECU or t ...

Removal
1. REMOVE REAR SEAT LEG SIDE GARNISH SUBASSEMBLY RH  Disengage the clips and remove the seat leg side garnish sub-assembly RH. 2. REMOVE REAR NO. 2 SEAT ASSEMBLY RH  Remove the bolt and locus cable RH.  Remove the 2 bolts and rear No. 2 seat assembly RH.  R ...

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