NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [MZR-CD (RF Turbo)]

BME010300000W60

25

A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS

DESCRIPTION

• A/C compressor magnetic clutch does not disengage under wide open throttle.

POSSIBLE CAUSE

• Accelerator position sensor malfunction
• Accelerator position sensor misadjustment
• Loosely installed accelerator position sensor

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION

1
Does A/C compressor disengage when A/C switch is turned off?
Yes
Go to next step.
No
Go to symptom troubleshooting "NO.24 A/C ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY".
2
Perform self-test function using WDS or equivalent.
Turn engine switch to ON.
Retrieve any DTC.
Is DTC displayed?
Yes

DTC is displayed:

Go to appropriate DTC test.

Communication error message is displayed:

Inspect for following:
• Open circuit between PCM control relay and PCM terminal 53 or 79
• Open circuit PCM control relay and PCM terminal 69
• PCM control relay stuck open.
• Open or poor GND circuit (PCM terminal 65, 85, 103 or 104)
• Poor connection vehicle body GND
No

No DTC is displayed:

Inspect adjustment of accelerator position sensor.
If accelerator position sensor adjustment is not correct, adjust accelerator position sensor.
3
Verify test results.
• If okay, return to diagnostic index to service any additional symptoms.
• If malfunction remains, replace PCM. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)