Toyota RAV4 manuals

Toyota Sienna Service Manual: Light Control Switch Circuit

DESCRIPTION

This circuit detects the state of the headlight dimmer switch.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 READ VALUE OF 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 items below in the DATA LIST, and read the displays on the intelligent tester

BODY NO.1:

BODY NO.1

2 INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY

  1. Inspect headlight dimmer switch assembly

3 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

  1. Remove the instrument panel junction block assembly.

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

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

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

Voltage

Voltage

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Front Fog Light Circuit
DESCRIPTION The Multiplex network body ECU controls FOG relay when signal is received from headlight dimmer switch assembly. WIRING DIAGRAM INSPECTION PROCEDURE 1 PERFORM ACTIVE TEST BY INT ...

Automatic Light Control Sensor Circuit
DESCRIPTION The Multiplex network body ECU receives the signal from the automatic light control sensor. HINT: DTC code is output when malfunction of automatic light control sensor or open or ...

Other materials:

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Diagnosis system
1. DESCRIPTION (a) When troubleshooting OBD II vehicles, the only difference from the usual troubleshooting procedure is to connect an OBD II scan tool complying with SAE J1987 or a intelligent tester to the vehicle, and read off various data output from the vehicle's ECM. (b) OBD II reg ...

Disposal
HINT: On the RH side, use the same procedures as on the LH side. 1. DISPOSE OF BACK DOOR STAY SUB-ASSEMBLY LH Horizontally fix the stay in a vise with the piston-rod pulled out. Wearing safety glasses, gradually cut a part between A and B as shown in the illustration using a metal ...

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