| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Theft Deterrent/Keyless Entry | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000001WP0007X |
| Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
ECU Power Source Circuit |
DESCRIPTION
This circuit provides power to operate the transponder key ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT FUSES (IMB, IGN) |
(a) Remove the IMB fuse and IGN fuses from the engine room relay block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
IMB fuse |
Always |
Below 1 Ω |
|
IGN fuse |
|
|
2. |
CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - BATTERY AND BODY GROUND) |
|
(a) Disconnect the H32 ECU connector. |
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H32-16 (GND) - Body ground |
Always |
Below 1 Ω |
Standard Voltage
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
H32-1 (+B) - Body ground |
Always |
11 to 14 V |
|
H32-2 (IG) - Body ground |
Ignition switch off |
Below 1 V |
|
Ignition switch ON |
11 to 14 V |
(c) Reconnect the ECU connector.
|
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