Toyota CH-R Service Manual: Back-up Power Source Circuit
DESCRIPTION
The back-up power source circuit for the air conditioning amplifier assembly is shown below. Power is supplied even when the ignition switch is off. This 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 procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - POWER SOURCE) |
|
(a) Disconnect the air conditioning amplifier assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F72-1 (B) - Body ground |
Always |
11 to 14 V |
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) |
(a) Disconnect the F72 air conditioning amplifier assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F72-29 (GND) - Body ground |
Always |
Below 1 Ω |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Ambient Temperature Display System
DESCRIPTION
The outside temperature sensor is installed in front of the cooler condenser
assembly to detect the ambient temperature which is used to control the air conditioning
system AUTO mode. ...
IG Power Source Circuit
DESCRIPTION
Power source voltage is supplied to the air conditioning amplifier assembly when
the ignition switch is turned ON. This power is used for operating the air conditioning
amplifier asse ...
Other materials:
Toyota CH-R Service Manual > Occupant Classification System: Initialization
INITIALIZATION
DESCRIPTION
(a) Zero point of the occupant classification sensors may deviate in the following
situations. To ensure sensor accuracy, be sure to perform Zero Point Calibration.
The occupant detection ECU is replaced.
HINT:
As the zero point is not automatically store ...
Toyota CH-R Service Manual > Lighting (ext): Headlight Leveling Switch
Components
COMPONENTS
ILLUSTRATION
*1
HEADLIGHT LEVELING SWITCH
*2
INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
Click here
2. REMOVE HEADLIGHT LE ...
Toyota C-HR (AX20) 2023-2026 Owner's Manual
Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
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