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Symptom Troubleshooting - Automatic Transaxle (FS5A-EL): NVH Mazda 3 BL

NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES [FS5A-EL]

20Noise occurs at idle when vehicle is stopped in all positions/ranges
DESCRIPTIONTransaxle is noisy in all positions and ranges when the vehicle is idling.
POSSIBLE CAUSEThe malfunction is in the 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 shift solenoid D, E or shift solenoid A, B, C. 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.
NOTE
If a noise is emitted during shifting only, the malfunction is in shift solenoid D, E or shift solenoid A, B, C. 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.

DESCRIPTION AND POSSIBLE CAUSES

NO.21 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN D, M RANGES, OR IN R POSITION [FS5A-EL]

21Noise occurs at idle when vehicle is stopped in D, M ranges, or in R position
DESCRIPTIONTransaxle is noisy in D, M ranges, or in R position when vehicle is idling.
POSSIBLE CAUSEAlthough the malfunction is basically the same as No.20 "NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES", other causes may include selector lever position disparity or TR switch position disparity.

DESCRIPTION AND POSSIBLE CAUSES