DTC B2226: AND error: Diagnosis

Required Special Tools: 

• MB991958: Scan Tool (M.U.T.-III Sub Assembly)
  • MB991824: Vehicles Communication Interface (V.C.I.).
  • MB991827: M.U.T.-III USB Cable
  • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)

1. STEP 1. Using scan tool MB991958, diagnose the CAN bus line. 
   CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
   1. Connect scan tool MB991958. Refer to "HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)  ".
   2. Turn the ignition switch to the "ON" position.
   3. Diagnose the CAN bus line.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the CAN bus line found to be normal? 

   YES:  Go to Step 2.

   NO:  Repair the CAN bus line (Refer to DIAGNOSIS ).

   Fig 1: Connecting Special Tool To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. STEP 2. Check that the audio visual navigation unit operate. 

   Check that the audio visual navigation unit work normally.

   NOTE: Check that the service data log is not set in the MMCS service mode "Versions Log Information" (Refer to SERVICE MODE  ).

   Q: Is audio visual navigation unit work normally? 

   YES:  Go to Step 3.

   NO:  Diagnose the audio visual navigation unit (Refer to TROUBLE SYMPTOM CHART  ).

3. STEP 3. Recheck for diagnostic trouble code. 

   Check again if the DTC is set to the CAN box unit.

   1. Erase the DTC.
   2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
   3. Check if DTC is set.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the DTC set? 

   YES:  Go to Step 4.

   NO:  The trouble can be an intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).

4. STEP 4. Recheck for diagnostic trouble code. 

   Temporarily replace the audio visual navigation unit, and check if the DTC is set to the CAN box unit.

   1. Erase the DTC.
   2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
   3. Check if DTC is set.
   4. Turn the ignition switch to the "LOCK" (OFF) position.

   Q: Is the DTC set? 

   YES:  Replace the CAN box unit.

   NO:  Replace the audio visual navigation unit.