| Last Modified: 11-29-2007 | 1.6 T | |
| Service Category: Vehicle Interior | Section: Theft Deterrent/Keyless Entry | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM0000026P100IX |
| Title: THEFT DETERRENT / KEYLESS ENTRY: THEFT DETERRENT SYSTEM: PROBLEM SYMPTOMS TABLE (2008 Sequoia) | ||
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
- Troubleshooting of the theft deterrent system is based on the premise that the door lock control system and the wireless door lock control system are operating normally. Accordingly, before troubleshooting the theft deterrent system, first make certain that the door lock control system and the wireless door lock control system are operating normally.
- The following is the troubleshooting procedure for the theft deterrent system of a vehicle without the smart key system.
Theft Deterrent System
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Theft deterrent system cannot be set |
Security indicator light circuit |
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ECU power source circuit |
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Unlock warning switch circuit |
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Door key lock/unlock switch |
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|
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Door courtesy switch circuit |
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|
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Back door courtesy switch circuit |
|
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Engine hood courtesy switch circuit |
|
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If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Security indicator does not blink when theft deterrent system is set |
Security indicator light circuit |
|
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Alarm sounding state cannot be canceled when ignition switch turned ON |
Ignition switch circuit |
|
|
Unlock warning switch circuit |
|
|
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If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Theft deterrent system can be set even when a door is open |
Door courtesy switch circuit |
|
|
If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Vehicle horns (low pitched, high pitched) do not sound while theft deterrent system is in warning operation |
Horn circuit |
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Headlights do not blink while theft deterrent system is in warning operation |
Headlight Relay Circuit |
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Taillights do not blink while theft deterrent system is in warning operation |
Taillight Relay Circuit |
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|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Hazard warning lights do not flash while theft deterrent system is in warning operation |
Wire harness or connector |
- |
|
Turn signal flasher |
|
|
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Interior light does not light up while theft deterrent system is in warning operation |
Interior light circuit |
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|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Security horn does not sound while theft deterrent system is in warning operation |
Security horn circuit |
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Headlights blink even when theft deterrent system is not set |
Headlight Relay Circuit |
|
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Taillights blink even when theft deterrent system is not set |
Taillight Relay Circuit |
|
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Hazard warning lights flash even when theft deterrent system is not set |
Wire harness or connector |
- |
|
Turn signal flasher |
|
|
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
|
Interior light comes on even when theft deterrent system is not set |
Interior light circuit |
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If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (Cowl side junction block LH). |
- |
|
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Glass breakage sensor does not operate* |
Glass breakage sensor ECU circuit* |
- |
*: w/ Glass Breakage Sensor
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