Last Modified: 11-29-2007 1.6 D
Service Category: Vehicle Interior Section: Door Lock
Model Year: 2008 Model: Sequoia Doc ID: RM000002YKM005X
Title: DOOR LOCK: KEY REMINDER WARNING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use the following procedures to troubleshoot the key reminder warning system.
  • *: Use the Techstream.

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage

Standard Voltage:

11 to 14 V

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

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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.

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 6
A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check DOOR LOCK: KEY REMINDER WARNING SYSTEM: OPERATION CHECK (2008 Sequoia)

(b) Terminals of ECU DOOR LOCK: KEY REMINDER WARNING SYSTEM: TERMINALS OF ECU (2008 Sequoia)

(c) Data List/Active Test DOOR LOCK: KEY REMINDER WARNING SYSTEM: DATA LIST / ACTIVE TEST (2008 Sequoia)

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6.

REPAIR OR REPLACE
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7.

CONFIRMATION TEST
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END