NO.25 A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS [MZR 1.3, MZR 1.5]

id0103d7804700

25

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

DESCRIPTION

•  The A/C compressor magnetic clutch does not disengage under WOT.

POSSIBLE CAUSE

•  Continuous memory DTC is stored

•  Erratic signal from APP sensor

―  APP sensor malfunction

•  PCM malfunction

25	A/C DOES NOT CUT OFF UNDER WIDE OPEN THROTTLE CONDITIONS
DESCRIPTION	• The A/C compressor magnetic clutch does not disengage under WOT.
POSSIBLE CAUSE	• Continuous memory DTC is stored • Erratic signal from APP sensor ― APP sensor malfunction • PCM malfunction

Diagnostic procedure

STEP	INSPECTION	RESULTS	ACTION
1	VERIFY A/C SYSTEM OPERATION • Does the A/C compressor disengage when the A/C switch is turned off?	Yes	Go to the next step.
1		No	Go to the symptom troubleshooting “NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY”. (See NO.24 A/C IS ALWAYS ON OR A/C COMPRESSOR RUNS CONTINUOUSLY [MZR 1.3, MZR 1.5].)
2	VERIFY PCM DTC • Perform the PCM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 1.3, MZR 1.5].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 1.3, MZR 1.5].)
2		No	Inspect the APP sensor. (See ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [MZR 1.3, MZR 1.5].) Repair or replace the malfunctioning part according to the inspection results.
3	Verify test results. • If normal, return to the diagnostic index to service any additional symptoms. (See SYMPTOM DIAGNOSTIC INDEX [MZR 1.3, MZR 1.5].) • If the malfunction remains, inspect the related Service Information and perform the repair or diagnosis. ― If the vehicle is repaired, troubleshooting is completed. ― If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZR 1.3, MZR 1.5].)