Last Modified: 11-29-2007 1.6 D
Service Category: Vehicle Interior Section: Theft Deterrent/Keyless Entry
Model Year: 2008 Model: Sequoia Doc ID: RM000001TC900BX
Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 Sequoia)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the engine immobiliser system.
  • *: Use the Techstream.

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

INSPECT BATTERY VOLTAGE

Standard Voltage:

11 to 14 V

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

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3.

CRANK ENGINE FOR MORE THAN 10 SECONDS
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4.

CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

(b) Clear the DTCs THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DTC CHECK / CLEAR (2008 Sequoia) .

(c) Recheck for DTCs. Try to duplicate the DTC (SFI system and engine immobiliser system) by simulating the symptoms indicated by the DTC.

Result

Result

Proceed to

DTC is not output

A

SFI system (for 2UZ-FE) DTC is output

B

SFI system (for 3UR-FE) DTC is output

C

Engine immobiliser system DTC is output

D
B

GO TO DTC CHART

C

GO TO DTC CHART

D

GO TO DTC 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) Data List / Active Test THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DATA LIST / ACTIVE TEST (2008 Sequoia)

(b) Terminals of ECU THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: TERMINALS OF ECU (2008 Sequoia)

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7.

ADJUST, REPAIR OR REPLACE
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8.

CONFIRMATION TEST
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END