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 NO.27 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [MZR-CD (RF Turbo)]

NO.27 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [MZR-CD (RF Turbo)]

id0103f1822500

27

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

DESCRIPTION

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

POSSIBLE CAUSE

• Accelerator pedal position (APP) sensor malfunction
• Loosely installed APP sensor

Diagnostic Procedure

STEP

INSPECTION

RESULTS

ACTION

1
Does the A/C compressor disengage when the A/C switch is turned off?
Yes
Go to the next step.
No
Go to symptom troubleshooting "NO.24 A/C ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [MZR-CD (RF-Turbo)]".
2
Perform the self-test function using the WDS or equivalent.
Turn the engine switch to the ON position.
Retrieve any DTCs.
Are any DTCs displayed?
Yes

DTC is displayed:

Go to the appropriate DTC test.

Communication error message is displayed:

Inspect the following:
• Open circuit between PCM control relay and PCM terminal 119 or 120
• Open circuit PCM control relay and PCM terminal 105
• PCM control relay stuck open.
• Open or poor ground circuit (PCM terminal 1, 2, 3, 114 or 117)
• Poor connection to vehicle body ground
No

No DTC is displayed:

Inspect APP sensor.
3
Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.
- If the vehicle is repaired, troubleshooting completed.
- If the vehicle is not repaired or additional diagnostic information is not available, reprogram the PCM if later calibration is available. Retest.