NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES [AW6AX-EL]

• The malfunction is in the pressure solenoid or oil pump which causes a high-pitched noise to be emitted from the transaxle at idle.

Note

• If a noise is emitted during shifting only, the malfunction is in the C1 clutch, C2 clutch, C3 clutch or B1 brake.

• If a noise is emitted during shifting at certain gears only or during deceleration only, it is gear noise.

• Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AW6AX-EL].)

STEP	INSPECTION	ACTION
1	• Inspect engine condition. • Is there any engine concern (e.g. Rough idle)?	Yes	Go to appropriate symptom troubleshooting. (See SYMPTOM DIAGNOSTIC INDEX [MZI-3.7].)
No	Replace basic inspection and repair or replace any malfunctioning parts according to the inspection result
2	• 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, replace the TCM.

STEP

INSPECTION

ACTION

• Inspect engine condition.

• Is there any engine concern (e.g. Rough idle)?

Yes

Go to appropriate symptom troubleshooting.

(See SYMPTOM DIAGNOSTIC INDEX [MZI-3.7].)

Replace basic inspection and repair or replace any malfunctioning parts according to the inspection result

• 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, replace the TCM.

20	Noise occurs at idle when vehicle is stopped in all positions/ranges
DESCRIPTION	• Transaxle is noisy in all positions and ranges when the vehicle is idling.
POSSIBLE CAUSE	• The malfunction is in the pressure solenoid or oil pump which causes a high-pitched noise to be emitted from the transaxle at idle. Note • If a noise is emitted during shifting only, the malfunction is in the C1 clutch, C2 clutch, C3 clutch or B1 brake. • If a noise is emitted during shifting at certain gears only or during deceleration only, it is gear noise. • Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AW6AX-EL].)