Toyota RAV4 manuals

Toyota Sienna Service Manual: Illumination Circuit

DESCRIPTION

The Multiplex network body ECU controls illumination light as shown in the chart below.

  1.  Room light assembly (Interior light, luggage component light) and courtesy light with DOOR position
  2.  Map light assembly (Personal light)
  3. Transponder key amplifier (Ignition key cylinder light)

WIRING DIAGRAM

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

  1. Connect the intelligent tester to DLC3.
  2.  Turn the ignition switch ON and push the intelligent tester main switch ON.
  3.  Select the item below in the ACTIVE TEST and then check that the relay operates

DATA LIST / AIR CONDITIONER

2 INSPECT LIGHT CONTROL RELAY

 INSPECT LIGHT CONTROL RELAY

  1. Check that there is resistance between the terminals at each switch position as shown in the chart.

Resistance

Resistance

3 INSPECT INTERIOR DOME LIGHT SWITCH ASSEMBLY

INSPECT INTERIOR DOME LIGHT SWITCH ASSEMBLY

  1. Inspect interior dome light relay continuity.

Resistance

Resistance

4 INSPECT INTERIOR LIGHT

  1. Inspect the each of interior light

5 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

  1. Measure voltage between each of the terminals as shown in the chart below

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

Voltage

Voltage

Voltage

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Door LOCK Position Circuit
DESCRIPTION This circuit detects the state of the door lock detection sensor and send it to the Multiplex network body ECU. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT T ...

Parking Brake Switch Circuit
DESCRIPTION The Multiplex network body ECU receives parking brake switch signal. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to DL ...

Other materials:

Low Battery Positive Voltage
DTC C1241/41 Low Battery Positive Voltage DESCRIPTION WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT ECU-IG FUSE (a) Remove the ECU-IG fuse from the driver side J/B. (b) Check continuity of the ECU-IG fuse. Standard resistance 2 CHECK BATTERY (a) Check the positive battery volt ...

Cruise Main Indicator Light Circuit
DESCRIPTION  The ECM detects a cruise control switch signal and sends it to the combination meter through CAN and BEAN. Then the CRUISE main indicator light comes on.  The CRUISE main indicator light circuit uses CAN and BEAN for communication. If there is a malfunction in ...

Occupant Classification ECU Malfunction
DTC B1795 Occupant Classification ECU Malfunction DESCRIPTION DTC B1795 is recorded when a malfunction is detected in the occupant classification ECU. Troubleshoot DTC B1771 first when the DTCs B1771 and B1795 are output simultaneously. WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK DTC ...

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