| Last Modified: 11-29-2007 | 1.6 J | |
| Service Category: Vehicle Interior | Section: Heating/Air Conditioning | |
| Model Year: 2008 | Model: Sequoia | Doc ID: RM000002VXL004X |
| Title: HEATING / AIR CONDITIONING: AIR CONDITIONING SYSTEM: DESCRIPTION (2008 Sequoia) | ||
|
ECU Power Source Circuit |
DESCRIPTION
This circuit provides power to operate the air conditioning amplifier.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT FUSE (A/C) |
|
(a) Remove the A/C 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 |
|---|---|---|
|
A/C fuse |
Always |
Below 1 Ω |
(c) Reinstall the A/C fuse.
|
|
3. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY, BODY GROUND) |
(a) Disconnect the H24 and H67 air conditioning amplifier connectors.
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H24-14 (GND) - Body ground |
Always |
Below 1 Ω |
|
H67-20 (GND2) - Body ground |
Always |
Below 1 Ω |
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
H24-21 (+B) - Body ground |
Always |
11 to 14 V |
|
H67-24 (+B2) - Body ground |
Always |
11 to 14 V |
(c) Reconnect the air conditioning amplifier connectors.
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