NO.20 NOISE OCCURS AT IDLE WHEN VEHICLE IS STOPPED IN ALL POSITIONS/RANGES [FN4A-EL]
id050301802500
20
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Noise occurs at idle when vehicle is stopped in all positions/ranges
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DESCRIPTION
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• Transaxle noisy in all positions and ranges when vehicle is idling.
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POSSIBLE CAUSE
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• The malfunction is in the oil pump which causes a high-pitched noise to be emitted from the transaxle at idle.
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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---|---|---|---|
1
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Inspect engine condition.
Is any engine concern (i. e. rough idle)?
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Yes
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Go to appropriate symptom troubleshooting.
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No
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Go to next step.
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2
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Does noise stop when solenoid connector is disconnected?
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Yes
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Go to next step.
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No
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Overhaul control valve body and repair or replace any defective parts.
If problem remains, overhaul transaxle and repair or replace any defective parts.
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3
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Check the value at the following PIDs using the M-MDS.
• APP
• VSS
• TSS
Are PID values okay?
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Yes
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Go to next step.
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No
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Repair or replace any defective parts.
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4
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Disconnect PCM connector.
Is resistance between GND terminal at PCM connector and body GND less than 5.0 ohms?
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Yes
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Go to next step.
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No
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Repair open GND circuit.
Reconnect PCM.
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5
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Check LPS PID value.
Is LPS PID value okay?
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Yes
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Overhaul control valve body and repair or replace any defective parts.
If problem remains, overhaul transaxle and repair or replace any defective parts.
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No
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Repair or replace any defective parts.
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6
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• Verify test results.
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