DTC C1210: Abnormality In G And Yaw Rate Sensor (Longitudinal G Sensor): Diagnosis

WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tools:

MB991958 Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicle Communication Interface (V.C.I.)
- MB991827 M.U.T.-III USB Cable
- MB991910 M.U.T.-III Main Harness A

STEP 1. Using scan tool MB991958, diagnose the CAN bus lines.
Using scan tool MB991958, diagnose the CAN bus lines.

Q: Is the check result normal?
1. YES: Go to Step 3.
2. NO: Repair the CAN bus lines. (Refer to TROUBLESHOOTING .) After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the DTC is reset.
Q: Is DTC C1210 set?
1. YES: Go to Step 3.
2. NO: This diagnosis is complete.
STEP 3. Scan tool data list
Check the following data list (Refer to DATA LIST REFERENCE TABLE .)
- Item 09: G sensor
  Q: Is the check result normal?
  1. YES: Go to Step 6.
  2. NO: Go to Step 4.
STEP 4. Connector check: A-05 ASC-ECU connector, C-46 AWC-ECU connector, C-47 intermediate connector
Q: Is the check result normal?
1. YES: Go to Step 5.
2. NO: Repair the connector, and then go to Step 9.
STEP 5. Wiring harness check between A-05 ASC-ECU connector terminal No. 18 and C-38 G and yaw rate sensor connector terminal No. 3, between A-05 ASC-ECU connector terminal No. 19 and C-38 G and yaw rate sensor connector terminal No. 2, between C-46 AWC-ECU connector terminal No. 9 and C-38 G and yaw rate sensor connector terminal No. 3, between C-46 AWC-ECU connector terminal No. 10 and C-38 G and yaw rate sensor connector terminal No. 2
- Open or short circuit check of communication circuit
Q: Is the check result normal?
1. YES: Replace the G and yaw rate sensor (Refer to G AND YAW RATE SENSOR ). Then go to Step 8.
2. NO: Repair the wiring harness, and then go to Step 9.
STEP 6. Check of G and yaw rate sensor part number
Q: Is the check result normal?
1. YES: After checking the G and yaw rate sensor, perform the calibration of the G and yaw rate sensor to make ASC-ECU relearn the neutral point. (Refer to G AND YAW RATE SENSOR CALIBRATION .) Then go to Step 7.
2. NO: Replace the G and yaw rate sensor. (Refer to G AND YAW RATE SENSOR .) Then go to Step 8.
STEP 7. Check whether the DTC is reset.
1. Erase the DTC.
2. Drive the vehicle at 12 mph (20 km/h) or higher.
Q: Is DTC C1210 set?
1. YES: Replace the G and yaw rate sensor. (Refer to G AND YAW RATE SENSOR .) Then go to Step 8.
2. NO: The procedure is complete.
STEP 8. Check whether the DTC is reset.
1. Erase the DTC.
2. Drive the vehicle at 12 mph (20 km/h) or higher.
Q: Is DTC C1210 set?
1. YES: Replace the hydraulic unit (integrated with ASC-ECU). (Refer to HYDRAULIC UNIT .) Then go to Step 9.
2. NO: Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .)
STEP 9. Check whether the DTC is reset.
1. Erase the DTC.
2. Drive the vehicle at 12 mph (20 km/h) or higher.
Q: Is DTC C1210 set?
1. YES: Return to Step 1.
2. NO: The procedure is complete.