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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Other materials about Toyota Venza:
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) The power back door ECU (power back door motor unit) controls the power back
door system functions. Power back door system data and Diagnostic Trouble Code (DTC)
can be read through the Data Link Connector 3 (DLC3).
W ...
Radio Antenna
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
Installation
INSTALLATION
PROCEDURE
1. INSTALL RADIO ANTENNA ASSEMBLY
(a) Engage the 2 claws to install the radio antenna assembly.
(b) Place the antenna cord in the cutout of the ante ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT VACUUM SWITCHING VALVE ASSEMBLY (for ACIS)
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*1
Body Ground
Stan ...
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