DESCRIPTION
In this circuit, the compressor with pulley assembly (compressor solenoid) receives a refrigerant compression demand signal from the air conditioning amplifier assembly.
Based on this signal, the compressor with pulley assembly (compressor solenoid) changes the amount of compressor output.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Memory |
---|---|---|---|---|
B1451 |
Compressor Solenoid Circuit |
Any of the following conditions is met:
|
|
- |
Vehicle Condition |
|||
---|---|---|---|
Pattern 1 |
Pattern 2 |
||
Diagnosis Condition |
Ignition switch ON |
○ |
○ |
Malfunction Status |
Open in compressor solenoid circuit |
○ |
- |
Short in compressor solenoid circuit |
- |
○ |
|
Detection Time |
30 seconds or more |
30 seconds or more |
|
Number of Trips |
1 trip |
1 trip |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1. |
INSPECT COMPRESSOR WITH PULLEY ASSEMBLY (COMPRESSOR SOLENOID) |
(a) Remove the compressor with pulley assembly (compressor solenoid).
Click here
(b) Inspect the compressor with pulley assembly (compressor solenoid).
Click here
NG | ![]() |
REPLACE COMPRESSOR WITH PULLEY ASSEMBLY (COMPRESSOR SOLENOID) |
|
2. |
CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH PULLEY ASSEMBLY (COMPRESSOR SOLENOID) - POWER SOURCE) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
C33-2 (SOL+) - Body ground |
Ignition switch ON |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH PULLEY ASSEMBLY (COMPRESSOR SOLENOID) - AIR CONDITIONING AMPLIFIER ASSEMBLY) |
(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 |
---|---|---|
C33-1 (SOL-) - F72-15 (SOL-) |
Always |
Below 1 Ω |
C33-1 (SOL-) or F72-15 (SOL-) - Body ground |
Always |
10 kΩ or higher |
Result |
Proceed to |
---|---|
NG |
A |
OK (When troubleshooting according to the Problem Symptoms Table) |
B |
OK (When troubleshooting according to the DTC) |
C |
A | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
B | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
4. |
CHECK FOR DTC |
(a) Clear the DTCs.
Click here
(b) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY |
Toyota CH-R Service Manual > Window Defogger System: System Description
SYSTEM DESCRIPTION
GENERAL
(a) The rear window defogger wire is attached to the inside of the rear window
and defogs the window surface quickly when the rear window defogger switch is pressed.
The indicator light on the switch illuminates while the system is operating. This
system automatica ...
Toyota CH-R Service Manual > Theft Deterrent System: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer
to REGISTRATION*1.
Click here
*1: w/ Smart Key System
When replacing the combination meter assembly, always replace it with
a new one. If a combination meter assembl ...