Toyota Tundra Service Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the power window control system.
  • *: Use the Techstream.

PROCEDURE

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 FOR DTC*

(a) Check for DTCs and make a note of any codes that are output.

(b) Clear the DTCs.

(c) Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the same DTC by simulating the detection conditions indicated by the DTC.

Result

Proceed to

No DTCs output

A

DTCs output

B

CAN communication system DTCs are output

C

LIN communication system DTCs are output

D

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

C

GO TO CAN COMMUNICATION SYSTEM

D

GO TO LIN COMMUNICATION SYSTEM

A

4.

PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table.

Click here

Result

Proceed to

Fault not listed in Problem Symptoms Table

A

Fault listed in Problem Symptoms Table

B

B

GO TO STEP 6

A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check.

Click here

(b) Terminals of ECU.

Click here

(c) Data List/Active Test.

Click here

NEXT

6.

REPAIR OR REPLACEMENT

Result

Proceed to

Door window regulator and power window regulator motor is replaced or removed/installed.

A

Door window regulator and power window regulator motor is not replaced or removed/installed.

B

B

GO TO STEP 8

A

7.

RESET POWER WINDOW REGULATOR MOTOR

(a) If the master switch AUTO light is blinking, reset the power window regulator motor.

Click here

NEXT

8.

CONFIRMATION TEST

NEXT

END

    Fail-safe Chart

    Initialization

    See More:

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