Mazda 2002 6 Workshop Manual page 539

NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES
20 Noise occurs at idle when vehicle is stopped in all positions/ranges
• Transaxle noisy in all positions and ranges when vehicle is idling.
DESCRIPTION
• The malfunction is in the oil pump which causes a high-pitched noise to be emitted from the transaxle at
idle.
Note
POSSIBLE
• If a noise is emitted during shifting only, the malfunction is in shift solenoid D, E or shift solenoid A, B,
CAUSE
• Before following troubleshooting steps, make sure that Automatic Transaxle On-Board Diagnostic
Diagnostic procedure
STEP
1 Inspect engine condition.
Is any engine concern (i. e. rough idle)?
2 Does noise stop when solenoid connector is
disconnected?
3 Check the value at the following PIDs using the
WDS or equivalent. (See
INSPECTION.)
• TP
• VSS
• TSS
Are PID values okay?
4 Disconnect PCM. Is resistance between ground
terminal at PCM connector and body ground
less than 5.0 ohms?
5 Check LPS PID value.
Is LPS PID value okay?
(See F–45 PCM
End Of Sie
NO.21 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN D, S, L RANGES, OR IN R POSITION
21 Noise occurs at idle when vehicle is stopped in D, S, L ranges, or in R position
• Transaxle noisy in driving ranges when vehicle idling.
DESCRIPTION
• Although the malfunction is basically the same as No.20 "Noise occurs at idle when vehicle is stopped
POSSIBLE
in all positions/ranges", other causes may be selector lever position disparity or TR switch position
CAUSE
disparity.
End Of Sie
K–128
TROUBLESHOOTING
C. If a noise is emitted during shifting at certain gears only or during deceleration only, it is gear
noise.
and Automatic Transaxle Basic Inspection are conducted.
INSPECTION
F–45 PCM
INSPECTION.)
Yes Go to appropriate symptom troubleshooting. (See Section
F.)
No Go to next step.
Yes Go to next step.
No Overhaul control valve body and repair or replace any
defective parts. If problem remains, overhaul transaxle and
repair or replace any defective parts. (See ATX workshop
manual (FN4A-EL) [1623-10-98E].) (See ATX workshop
manual supplement (FN4A-EL) [1746-1*-02C].)
Yes Go to next step.
No Repair or replace any defective parts.
Yes Go to next step.
No Repair open ground circuit. Reconnect PCM.
Yes Overhaul control valve body and repair or replace any
defective parts. If problem remains, overhaul transaxle and
repair or replace any defective parts. (See ATX workshop
manual (FN4A-EL) [1623-10-98E].) (See ATX workshop
manual supplement (FN4A-EL) [1746-1*-02C].)
No Repair or replace any defective parts.
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ACTION
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