| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Steering | Section: Steering Column | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000000XZ7016X |
| Title: STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
IG Power Source Circuit |
DESCRIPTION
When the ignition switch is turned ON, the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU.
The multiplex tilt and telescopic ECU also receives ignition switch signals via this circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
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1. |
INSPECT FUSE (ECU-IG No. 1) |
|
(a) Remove the ECU-IG No. 1 fuse from the main body ECU. |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
ECU-IG No. 1 fuse |
Always |
Below 1 Ω |
|
|
2. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BATTERY) |
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(a) Disconnect the H57 multiplex tilt and telescopic ECU connector. |
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
H57-8 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
|
|
3. |
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
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