Toyota Venza: Back-up Power Source Circuit
DESCRIPTION
The back-up power source circuit for the A/C amplifier is shown below. Power is supplied even when the ignition switch is turned off. The power is used for diagnostic trouble code memory, etc.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (A/C AMPLIFIER - BATTERY) |
|
(a) Disconnect the A/C amplifier connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D47-21 (B) - Body ground |
Always |
11 to 14 V |
|
*1 |
Front view of wire harness connector (to A/C Amplifier) |
| OK | .gif) |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition switch
is ON.
The power source is used for operating the A/C amplifier and servo motor, etc.
WIRING DIAGRAM
...
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Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE ENGINE COVER JOINT
(a) Remove the 3 joints.
2. REMOVE SPARK PLUG
3. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (for Intake Side)
4. REMOVE CAMSHAFT TIM ...
Interior Light Circuit
DESCRIPTION
The illuminated entry system controls the roof console box assembly, step or
spot light assembly and transponder key amplifier*1.
HINT:
*1: w/o Smart Key System
WIRING DIAGRAM
PROCEDURE
1.
PERFORM ACTIVE TEST USING ...
Front Occupant Classification Sensor LH Collision Detection (B1785)
DESCRIPTION
DTC B1785 is output when the occupant classification ECU receives a collision
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occurs.
DTC B1785 is also output when the front seat assembly RH is subjected to ...
0.1207