| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Suspension | Section: Tire Pressure Monitoring | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM0000018LV00GX |
| Title: TIRE PRESSURE MONITORING: TIRE PRESSURE WARNING SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
ECU Power Source Circuit |
DESCRIPTION
This is the power source for the tire pressure warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
- When replacing the tire pressure warning ECU, read the transmitter IDs stored in the old ECU using the Techstream and write them down before removal.
-
It is necessary to perform initialization
after registration
of the transmitter IDs into the tire pressure warning ECU after the ECU and/or tire pressure warning valve and transmitter has been replaced.
PROCEDURE
|
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 (ECU - BATTERY AND BODY GROUND) |
(a) Disconnect the H40 ECU connector.
|
(b) Measure the voltage and resistance according to the value(s) in the table below. Standard Voltage:
Standard Resistance:
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (ECU - BATTERY) |
(a) Disconnect the H40 ECU connector.
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
|
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