Diagnostic Procedure
- STEP 1. M.U.T.-III data list
Item 2: Secondary speed 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:
- C-37 TCM connector
- B-124 Secondary pulley speed sensor connector
- B-13 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 in the wiring harness between the secondary pulley speed sensor connector and the TCM connector.
Between B-124 secondary pulley speed sensor connector (terminal No. 3) and C-37 TCM connector (terminal No. 48)
Q: Is the check result normal?
YES : Go to Step 4.
NO : Repair the wiring harness.
- STEP 4. Check for open circuit and short to ground in the wiring harness between the secondary pulley speed sensor connector and the TCM connector
Between B-124 secondary pulley speed sensor connector (terminal No. 2) and C-37 TCM connector (terminal No. 36)
Q: Is the check result normal?
YES : Go to Step 5.
NO : Repair the wiring harness.
- STEP 5. Check for open circuit in the wiring harness between the CVT control relay and the secondary pulley speed sensor connector.
Between A-18X CVT control relay (terminal No. 3) and B-124 secondary pulley speed sensor connector (terminal No. 1)
Q: Is the check result normal?
YES : Go to Step 6.
NO : Repair the wiring harness.
- STEP 6. Secondary pulley speed sensor check
Visually check the tip of the sensor for foreign materials or damage.
Q: Is the check result normal?
YES : Go to Step 7.
NO : Repair.
- STEP 7. Diagnosis code recheck after replacing the secondary pulley speed sensor
Q: Is the check result normal?
YES : The inspection is complete.
NO : Replace TCM.