DESCRIPTION
In this circuit, the A/C compressor receives a refrigerant compression demand signal from the A/C amplifier.
Based on this signal, the A/C compressor changes the amount of compressor output.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B1451/51 |
Open or short in A/C compressor solenoid circuit |
|
WIRING DIAGRAM
PROCEDURE
1. |
INSPECT A/C COMPRESSOR (SOLENOID VALVE) |
(a) Disconnect the A/C compressor (solenoid valve) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
B29-2 (SOL+) - B29-1 (SOL-) |
20°C (68°F) |
10 to 11 Ω |
Result |
Proceed to |
---|---|
OK |
A |
NG (for 2GR-FE) |
B |
NG (for 1AR-FE) |
C |
*1 |
Component without harness connected (A/C Compressor (Solenoid Valve)) |
B | ![]() |
REPLACE A/C COMPRESSOR (SOLENOID VALVE) |
C | ![]() |
REPLACE A/C COMPRESSOR (SOLENOID VALVE) |
|
2. |
CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR (SOLENOID VALVE) - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (A/C COMPRESSOR (SOLENOID VALVE) - A/C AMPLIFIER) |
(a) Disconnect the A/C amplifier connector. |
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
Result:
|
|
A | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
B | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
C | ![]() |
REPLACE A/C AMPLIFIER |
Inspection
INSPECTION
PROCEDURE
1. INSPECT FRONT OIL PUMP AND GEAR BODY SUB-ASSEMBLY
(a) Turn the drive gear with 2 screwdrivers and make sure that it rotates
smoothly.
NOTICE:
Be careful not to damage the oil seal lip.
...
Main Body ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Main Body ECU Communication Stop Mode
"Main Body" is not displayed on "CAN Bus Check" screen of the
Techstream.
...
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)
(a) Disconnect the P4 ECU connector.
(b) Measure the resistance and voltage according to the value(s) in the table
below.
HINT:
Measure the values on the wire harness si ...