Last Modified: 11-29-2007 1.6 D
Service Category: Vehicle Exterior Section: Lighting (ext)
Model Year: 2008 Model: Sequoia Doc ID: RM000002WKL006X
Title: LIGHTING (EXT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the lighting system.
  • Use the Techstream.

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.

NEXT

3.

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result

Result

Proceed to

CAN DTC is not output

A

CAN DTC is output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

4.

CHECK FOR DTC*

(a) Clear the DTC LIGHTING (EXT): LIGHTING SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

(b) Recheck for DTC LIGHTING (EXT): LIGHTING SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

Result

Result

Proceed to

DTC is not output

A

DTC is output

B
B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

5.

PROBLEM SYMPTOMS TABLE

Result

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B
B

Go to step 7
A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check LIGHTING (EXT): LIGHTING SYSTEM: OPERATION CHECK (2008 Sequoia) .

(b) Terminals of ECU LIGHTING (EXT): LIGHTING SYSTEM: TERMINALS OF ECU (2008 Sequoia) .

(c) Data List/Active Test LIGHTING (EXT): LIGHTING SYSTEM: DATA LIST / ACTIVE TEST (2008 Sequoia) .

NEXT

7.

ADJUST, REPAIR OR REPLACE
NEXT

8.

CONFIRMATION TEST
NEXT

END