NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES [SJ6A-EL]

id050307802500

20 | Noise occurs at idle when vehicle is stopped in all positions/ranges
DESCRIPTION | • Transmission is noisy in all positions and ranges when the vehicle is idling.
POSSIBLE CAUSE | • The malfunction is in the pressure solenoid, control valve body or oil pump which causes a high-pitched noise to be emitted from the transmission at idle. Note • If a noise is emitted during shifting only, the malfunction is in the C1 clutch, C2 clutch, C3 clutch, B1 brake, B2 brake, B3 brake, or B4 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 Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION [SJ6A-EL].)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Inspect the engine condition. • Is there any engine concern (e.g. Rough idle, vibration)? | Yes | Perform the appropriate symptom troubleshooting. (See QUICK DIAGNOSTIC CHART [L8, LF].)
No | Replace basic inspection and repair or replace the malfunctioning part according to the inspection results.
2 | • Verify test results. ― If normal, return to the diagnostic index to service any additional symptoms. ― If 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. (See TCM REMOVAL/INSTALLATION [SJ6A-EL].)