Inspection Procedure 14: Poor Acceleration
COMMENTS ON TROUBLE SYMPTOM
If acceleration is poor when downshifting occurs while driving, the cause is probably a malfunction of the engine system.
PROBABLE CAUSES
- Malfunction of engine system
- Malfunction of the A/T-ECU <4M4>
- Malfunction of the engine-A/T-ECU <6G7>
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STEP 1. Engine system check
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Q.
Is the check result normal?
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 Go to Step 2.
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 Repair the engine system.
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STEP 2. A/T-ECU <4M4> or engine-A/T-ECU <6G7> replacement
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(1)Replace the A/T-ECU <4M4> or engine-A/T-ECU <6G7>.
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(2)Test drive the vehicle.
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(3)Verify that the condition described by the customer exists.
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Q.
Does a malfunction take place again?
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Go to Step 1.
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The inspection is complete.
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