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 |
---|---|---|
F72-5 (IG+) - Body ground |
Ignition switch off |
Below 1 V |
F72-5 (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 |
---|---|---|
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 |
Toyota CH-R Service Manual > Automatic High Beam System: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer
to registration.*1
*1: w/ Smart Key System
When replacing the forward recognition camera, always replace it with
a new one. If a forward recognition camera which was inst ...
Toyota CH-R Service Manual > Meter / Gauge System: Lost Communication with ECM / PCM "A" (U0100,U0129,U0131,U0142,U0151,U0182,U0235,U023A)
DESCRIPTION
The combination meter assembly communicates with the ECM, brake actuator assembly
(skid control ECU), power steering ECU assembly, main body ECU (multiplex network
body ECU), airbag sensor assembly, headlight control ECU sub-assembly LH*1, front
camera module*2, millimeter wave ra ...