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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
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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
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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. (See DTC TABLE [MZR-CD (RF Turbo)].) 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. (See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [MZR-CD (RF Turbo)].)
3 | Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZR-CD (RF Turbo)].) • 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.