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 assembly, servo motors, 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 - IG 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 |
Switch Condition |
Specified Condition |
---|---|---|
F139-2 (IG+) - Body ground |
Ignition switch off |
Below 1 V |
F139-2 (IG+) - Body ground |
Ignition switch ON |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F139-4 (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 |
Toyota CH-R Service Manual > Vacuum Warning Switch: Installation
INSTALLATION
PROCEDURE
1. INSTALL VACUUM WARNING SWITCH ASSEMBLY
(a) Install a new check valve grommet to the brake booster assembly.
(b) Install the vacuum warning switch assembly to the brake booster assembly
as shown in the illustration.
...
Toyota CH-R Service Manual > Steering Lock System: Open / Short in Steering Lock ECU (B2781)
DESCRIPTION
The steering lock ECU and steering lock motor are built into the steering lock
actuator or upper bracket assembly.
The steering lock ECU (steering lock actuator or upper bracket assembly) detects
whether the steering lock is in the lock or unlock position by using the lock sensor
...