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 |
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HINT:
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