Diagnostic Procedure
- STEP 1. M.U.T.-III data list
Item 5: Transmission fluid temperature sensor signal. Refer to DATA LIST REFERENCE TABLE .
Q: Is the check result normal?
YES : Intermittent malfunction
NO : Go to Step 2.
- STEP 2. Check the following connector:
- B-125 Transmission assembly connector
- C-37 TCM connector
- A-12 Intermediate connector
Check the terminals for a contact status problem and internal short circuit.
Q: Is the check result normal?
YES : Go to Step 3.
NO : Repair the defective connector.
- STEP 3. Check for open circuit and short to ground in the wiring harness between the CVT assembly connector and the TCM connector
Between B-125 CVT assembly connector (terminal No. 17) and C-37 TCM connector (terminal No. 50)
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the wiring harness.
- STEP 4. Check for open circuit in the wiring harness between the CVT assembly connector and the TCM connector
Between B-125 CVT assembly connector (terminal No. 19) and C-37 TCM connector (terminal No. 48)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the wiring harness.
- STEP 5. Transmission fluid temperature sensor check
Refer to CVT FLUID TEMPERATURE SENSOR CHECK .
Q: Is the check result normal?
YES : Go to Step 6.
NO : Replace the valve body assembly.
- STEP 6. Symptom recheck after erasing diagnosis code
Q: Is the check result normal?
YES : Intermittent malfunction
NO : Replace TCM.