DTC C2208: AWD-Ecu Internal Error: Diagnosis

WARNING: This page is about a different variant/trim than selected.

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

STEP 1. Scan tool MB991958 CAN bus diagnostics
Use scan tool MB991958 to diagnose the CAN bus lines.

Q: Is the check result normal?

YES: Go to Step 3.

NO: Repair the CAN bus line (Refer to CAN BUS DIAGNOSTICS CHART ). On completion, go to Step 2.
STEP 2. Check whether the DTC is reset after repairing the CAN bus line.
1. Erase the DTC.
2. Turn the ignition switch from the LOCK (OFF) position to the ON position at least 3 times.
3. Fully depress the accelerator pedal, and maintain its position for 2 seconds.
  NOTE: The coupling coil electronic control is also based on the accelerator pedal opening degree, thus the signal is sent to the ECU.
4. Check if the DTC is set.
Q: Is the DTC No. C2208 set?

YES: Go to Step 3.

NO: This diagnosis is complete.
STEP 3. Check the following connector:
Check the connectors below for improper engagement, terminal damage or terminal drawn in the connector case.
- C-128 AWD-ECU connector
- D-113 intermediate connector
- D-119 electronic control coupling solenoid connector
Q: Are the connectors and terminals in good condition?

YES: Go to Step 4.

NO: Repair the connector(s) or terminal(s). Then go to Step 6.
STEP 4. Wiring harness check
Check the wiring harness between the C-128 AWD-ECU connector and the D-119 electronic control coupling solenoid connector for damage or other problem.

Q: Is the wiring harness in good condition?

YES: Go to Step 5.

NO: Repair damage or other problem in the wiring harness. Then go to Step 6.
STEP 5. Check whether the DTC is reset.
1. Erase the DTC.
2. Turn the ignition switch from the LOCK (OFF) position to the ON position at least 3 times.
3. Check if the DTC is set.
Q: Is the DTC No. C2208 set?

YES: Replace AWD-ECU (refer to REMOVAL AND INSTALLATION ). Then go to Step 6.

NO: The trouble can be an intermittent malfunction (refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
STEP 6. Check whether the DTC is reset.
1. Erase the DTC.
2. Turn the ignition switch from the LOCK (OFF) position to the ON position at least 3 times.
3. Check if the DTC is set.
Q: Is the DTC No. C2208 set?

YES: Diagnose again from Step 1.

NO: This diagnosis is complete.