ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING [ET6A-EL (US)]
ENGINE FLARES UP OR SLIPS WHEN UPSHIFTING OR DOWNSHIFTING [ET6A-EL (US)]
SM2566138
id0503n21017n5
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Troubleshooting item |
Engine flares up or slips when upshifting or downshifting |
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Description
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• When shifting up while accelerating the vehicle with the accelerator pedal depressed, the engine revs.
• When shifting down while the vehicle is being driven normally with the accelerator pedal depressed, the engine revs rapidly.
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Possible cause
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1. Insufficient TCM learning
2. Signal 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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Step |
Inspection |
Results |
Action |
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1
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VERIFY MALFUNCTION SYMPTOM
• Is the malfunction symptom at the same level compared to a vehicle of the same model (ET6A-EL vehicles)?
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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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PERFORM INITIAL LEARNING
• Perform the initial learning. (See INITIAL LEARNING [ET6A-EL (US)].)
• 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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3
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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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Symptom troubleshooting is completed.
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