Toyota RAV4 manuals

Toyota Sienna Service Manual: Headlight Relay Circuit

DESCRIPTION

The Multiplex network body ECU controls HEAD relay when signal is received from headlight dimmer switch assembly.

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

BODY NO. 1:

BODY NO. 1

2 INSPECT HEADLIGHT RELAY

 INSPECT HEADLIGHT RELAY

  1. Inspect headlight relay continuity.

Resistance

Resistance

3 INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

  1. Measure voltage between the terminal as shown in the chart below

Voltage

Voltage

INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

REPAIR OR REPLACE HARNESS OR CONNECTOR

Ignition Switch Circuit
DESCRIPTION The Multiplex network body ECU receives the ACC and IG signals from the ignition switch. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER Connect the in ...

DRL Relay Circuit
DESCRIPTION The Multiplex network body ECU controls the DRL No.2 relay WIRING DIAGRAM INSPECTION PROCEDURE 1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER Connect the intelligent tester to DLC ...

Other materials:

Hydraulic test
1. Perform hydraulic test (a) Measure the line pressure. NOTICE: Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature: 50 to 80°C (122 to 176°F). The line pressure test should always be carried out in pairs. One technician should ...

Inspection
1. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY OPERATION (a) Apply the parking brake and turn the ignition switch to the ON position. (b) Depress the brake pedal and check that the engine starts only when the shift lever is in the N or P position and the engine does not start when the shift ...

Dtc clear
(A) when using the obd ii scan tool or intelligent tester: clearing the dtcs. (1) Connect the intelligent tester together with the CAN VIM (controller area network vehicle interface module) to the DLC3. (2) Turn the ignition switch to the ON position and turn the OBD II scan tool or the inte ...

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