EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (TCC) [EV6A-EL, EV6AX-EL]
EXCESSIVE SHIFT SHOCK ON TORQUE CONVERTER CLUTCH (TCC) [EV6A-EL, EV6AX-EL]
SM2566165
id0503n9102200
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Troubleshooting item |
Excessive shift shock on torque converter clutch (TCC) |
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Description
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• Strong shock is felt when TCC is engaged.
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Possible cause
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1. Insufficient TCM learning (Insufficient TCC learning)
2. Signal malfunction
3. Torque converter malfunction
4. Engine control system malfunction
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System wiring diagram
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• Not applicable
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Connector diagram
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• Not applicable
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Diagnostic procedure
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Note
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• If a DTC is stored in the PCM, the malfunction may be resolved by repairing the malfunctioning location.
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Step |
Inspection |
Results |
Action |
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1
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PERFORM INITIAL LEARNING AND TCC LEARNING
Perform the initial learning. (See INITIAL LEARNING [EV6A-EL, EV6AX-EL].)
Perform TCC learning using the following procedure:
• Does the symptom disappear?
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Yes
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Symptom troubleshooting is completed.
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No
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Go to the next step.
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2
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INSPECT SIGNAL PARTS FOR MALFUNCTION
• Inspect the value at the following PCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION.)
• Is there any malfunction? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (US))].)
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Yes
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Repair or replace any malfunctioning parts according to the inspection result.
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No
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Replace the automatic transaxle.
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