Code No. C1078: Tire Revolutions Range: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics.
Use scan tool (M.U.T.-III) to perform the CAN bus diagnosis.

Q: Is the check result normal?
1. YES: Go to Step 3.
2. NO: Repair the CAN bus line (Refer to DIAGNOSIS ). After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the DTC is stored again.
Q: Is DTC No. C1078 stored?
1. YES: Go to Step 3.
2. NO: This diagnosis is complete.
STEP 3. Check the tires
Check that the wheels/tires with the identical size are installed, and that each tire pressure is within the value specified on the tire pressure label.

Q: Is the check result normal?
1. YES: Go to Step 4.
2. NO: Install the wheels/tires with the identical size, or adjust the tire pressure. Then go to Step 5.
STEP 4. Scan tool (M.U.T.-III) other system DTC.
Check the ASC DTC (Refer to TROUBLESHOOTING ).

Q: Is the DTC stored?
1. YES: Perform the relevant troubleshooting.
2. NO: Go to Step 5.
STEP 5. Scan tool (M.U.T.-III) data list.
Check the following data list. (Refer to DATA LIST REFERENCE TABLE ).
- Item No.18: FL wheel speed sensor
- Item No.19: FR wheel speed sensor
- Item No.20: RL wheel speed sensor
- Item No.21: RR wheel speed sensor
Q: Is the check result normal?
1. YES: Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
2. NO: Replace the AWD-ECU. (Refer to AWD-ECU ).