DTC P0715: Malfunction of Primary Pulley Speed Sensor: Diagnosis

STEP 1. M.U.T.-III data list
Item 1: Primary speed sensor signal (Refer to DATA LIST REFERENCE TABLE .)

Q: Is the check result normal?
1. YES: Intermittent malfunction
2. NO: Go to Step 2.
STEP 2. Check the following connector:
- B-07 Primary pulley speed sensor connector
- C-40 TCM connector
- A-09, A-10 Intermediate connector
Check the terminals for a contact status problem and internal short circuit.

Q: Is the check result normal?
1. YES: Go to Step 3.
2. NO: Repair the defective connector.
STEP 3. Check for open circuit in the wiring harness between the primary pulley speed sensor connector and the TCM connector
Between B-07 primary pulley speed sensor connector (terminal No. 3) and C-40 TCM connector (terminal No. 48)

Q: Is the check result normal?
1. YES: Go to Step 4.
2. NO: Repair the wiring harness.
STEP 4. Check for open circuit and short to ground in wiring harness between the primary pulley speed sensor connector and the TCM connector
Between B-07 primary pulley speed sensor connector (terminal No. 2) and C-40 TCM connector (terminal No. 37)

Q: Is the check result normal?
1. YES: Go to Step 5.
2. NO: Repair the wiring harness.
STEP 5. Check for open circuit in the wiring harness between the CVT control relay and the primary pulley speed sensor connector.
Between A-15X CVT control relay (terminal No. 3) and B-07 primary pulley speed sensor connector (terminal No. 1)

Q: Is the check result normal?
1. YES: Go to Step 6.
2. NO: Repair the wiring harness.
STEP 6. Primary pulley speed sensor check
Visually check the tip of the sensor for foreign materials or damage.

Q: Is the check result normal?
1. YES: Go to Step 7.
2. NO: Repair.
STEP 7. Diagnostic trouble code recheck after replacing the primary pulley speed sensor
Q: Is the check result normal?
1. YES: The procedure is complete.
2. NO: Replace TCM.