DTC Code | DTC Name |
---|---|
B1451/51 | Compressor Solenoid Circuit |
DESCRIPTION
In this circuit, the compressor with pulley assembly*1 or cooler compressor assembly*2 receives a refrigerant compression demand signal from the air conditioning amplifier assembly.
Based on this signal, the compressor with pulley assembly*1 or cooler compressor assembly*2 changes the amount of compressor output.
*1: for 2AR-FE
*2: for 2GR-FE
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
---|---|---|---|---|---|
B1451/51 | Compressor Solenoid Circuit | Open or short in compressor solenoid circuit |
|
- | - |
WIRING DIAGRAM
for 2AR-FE:
*a | Compressor with Pulley Assembly |
*b | Air Conditioning Amplifier Assembly |
for 2GR-FE:
*a | Cooler Compressor Assembly |
*b | Air Conditioning Amplifier Assembly |
CAUTION / NOTICE / HINT
Note
When the battery is disconnected or the air conditioning amplifier assembly is replaced, be sure to perform servo motor initialization.
PROCEDURE
READ VALUE USING GTS (REGULATOR CONTROL CURRENT)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Air Conditioner / Data List.
Check the value(s) by referring to the table below.
Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Regulator Control Current | Solenoid valve control current | Min.: 0 A Max.: 0.997 A |
Value changes between 0 A and 0.997 A in accordance with solenoid valve operation | - |
Tester Display |
---|
Regulator Control Current |
OK |
---|
The display is as specified in the normal condition column. |
Result | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
|
A |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY for LHD: Click here for RHD: Click here |
B |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
D |
INSPECT COOLER COMPRESSOR ASSEMBLY Click here |
C |
INSPECT COMPRESSOR WITH PULLEY ASSEMBLY
Remove the compressor with pulley assembly.
Inspect the compressor with pulley assembly.
Result | |||
---|---|---|---|
|
NG |
REPLACE COMPRESSOR WITH PULLEY ASSEMBLY Click here |
OK |
CHECK HARNESS AND CONNECTOR (COMPRESSOR WITH PULLEY ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND)
Disconnect the G36 air conditioning amplifier assembly connector.
Disconnect the D20 compressor with pulley assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
OK |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY for LHD: Click here for RHD: Click here |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
INSPECT COOLER COMPRESSOR ASSEMBLY
Remove the cooler compressor assembly.
Inspect the cooler compressor assembly.
Result | |||
---|---|---|---|
|
NG |
REPLACE COOLER COMPRESSOR ASSEMBLY Click here |
OK |
CHECK HARNESS AND CONNECTOR (COOLER COMPRESSOR ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND)
Disconnect the G36 air conditioning amplifier assembly connector.
Disconnect the D69 cooler compressor assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Result | |||
---|---|---|---|
|
OK |
REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY for LHD: Click here for RHD: Click here |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |