| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Theft Deterrent/Keyless Entry | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002X1G002X |
| Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
Security Indicator Light Circuit |
DESCRIPTION
When a key is registered, the transponder key ECU outputs the key registration condition by lighting up, blinking or turning OFF the security indicator light.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
When the transponder key ECU is replaced, reregister the ECU - ECM communication ID
.
PROCEDURE
|
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (SECURITY INDICATOR LIGHT) |
(a) Connect Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Perform the Active Test according to the display on the Techstream.
Immobiliser
|
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Security Indicator |
Security indicator light |
ON or OFF |
- |
OK:
Security indicator light turns ON and OFF.
|
|
2. |
INSPECT TRANSPONDER KEY ECU |
|
(a) Remove the transponder key ECU with the connector still connected
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H32-8 (IND) - Body ground |
Engine immobiliser system is set |
Alternating between 11 to 14 V and below 1 V |
(c) Reinstall the transponder key ECU.
|
|
3. |
CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU - SECURITY INDICATOR LIGHT) |
|
(a) Disconnect the H32 ECU connector. |
(b) Disconnect the I22 meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H32-8 (IND) - I22-17 (LP) |
Always |
Below 1 Ω |
|
H32-17 (LP) - Body ground |
Always |
10 kΩ higher |
(d) Reconnect the ECU and meter connector.
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