Toyota RAV4 manuals

Toyota Sienna Service Manual: Diagnosis Circuit

DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.

DTCs are displayed by blinking the SRS warning light.

HINT:

WIRING DIAGRAM

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK MULTIPLEX COMMUNICATION SYSTEM

  1. Check if the multiplex communication system DTC is output.

HINT: The center airbag sensor assembly of this system is connected to the multiplex communication system.

Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.

OK: The Multiplex communication system DTC is not output.

2 CHECK CAN COMMUNICATION SYSTEM

  1. Use the intelligent tester to check if the CAN communication system is functioning normally.

HINT: The ECM is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.

OK: The CAN communication system is functioning normally.

3 CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM)

CHECK WIRE HARNESS (TC OF DLC3 - TC OF ECM)

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the connector from the ECM.
  3.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

4 CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)

CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)

  1. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

5 CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND)

CHECK WIRE HARNESS (TC OF DLC3 - BODY GROUND)

  1. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

REPLACE CENTER AIRBAG SENSOR ASSEMBLY

SRS Warning Light does not Come ON
DESCRIPTION WIRING DIAGRAM INSPECTION PROCEDURE 1 CHECK BATTERY Measure the voltage of the battery. Standard voltage: 11 to 14 V 2 CHECK CONNECTORS Turn the ignition switch to the LOCK ...

Occupant classification system
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Other materials:

Reassembly
1. INSTALL FRONT AXLE HUB LH BEARING (a) Using SST(s) and a press, install a new front axle hub LH bearing to the steering knuckle LH. SST 09950-60020 (09951-00810), 09950-70010 (09951-07100) 2. INSTALL DISC BRAKE DUST COVER FRONT LH (a) Place the disc brake dust cover front LH and using ...

On-vehicle inspection
1. INSPECT FUEL CUT RPM (a) Increase the engine speed to at least 3500 rpm. (b) Use a sound scope to check for injector operating sounds. (c) Check that when the throttle lever is released, injector operating sounds stop momentarily (at 2500 rpm) and then resume (at 1400 rpm). Standard ...

Problem symptoms table
SLIDING ROOF SYSTEM Symptom Suspected area AUTO function does not operate Sliding roof motor assembly Sliding roof system does not operate ECU-IG fuse S/ Roof fuse IG1 relay Sliding roof housing assembly Sliding roof motor switc ...

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