Code No. P0741: Abnormality in Lock-up Function
DIAGNOSTIC FUNCTION
JUDGMENT CRITERIA
PROBABLE CAUSES
- Abnormal line pressure
- Malfunction of CVT-ECU
DIAGNOSTIC PROCEDURE |
STEP 1. Check other diagnosis codes. |
Q.
Are other diagnosis codes set?
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Carry out the appropriate troubleshooting. |
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Go to Step 2. |
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STEP 2. M.U.T.-III data list |
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OK: No considerable difference is observed between the primary pulley speed and the engine speed. |
Q.
Is the check result normal?
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Intermittent malfunction |
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Go to Step 3. |
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STEP 3. Line Pressure Check |
Carry out "hydraulic test"(Refer to ). |
Q.
Is the check result normal?
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Go to Step 4. |
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Repair according to the hydraulic pressure diagnosis table. |
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STEP 4. Symptom recheck after erasing diagnosis code |
Q.
Is the check result normal?
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Intermittent malfunction |
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Replace CVT-ECU. |
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