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 |
Canceling the power back door system (vehicles with power back door)
Turn the main switch to disable the power back door system.
1. Inoperative
2. Operative
The back door cannot be operated even with the wireless remote control or power
back door switch.
A buzzer will sound twice if the power back door switch is pressed ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Read the DTCs by following the directions on the Techstream screen.
HINT:
Refer to the Techstream operator's m ...
Brake fluid
- Checking fluid level
The brake fluid level should be between the “MAX” and “MIN” lines on the tank.
Make sure to check the fluid type and prepare the necessary items.
- Adding fluid
- Brake fluid can absorb moisture from the ...