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DTC B2203: VIN not programmed
 
 
 
 
TROUBLE JUDGEMENT
With the ignition switch at the ON position, if the VIN code is not written to the combination meter, DTC B2203 is stored.
 
 
TROUBLESHOOTING HINTS
  • The CAN bus line may be defective.
  • The ETACS-ECU may be defective.
  • The combination meter may be defective.
 
 
DIAGNOSIS
STEP 1. Using scan tool MB991958, diagnose the CAN bus line.
(1)
cautionTo prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
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.
Is the CAN bus line found to be normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C, Diagnosis ).
 
STEP 2. Using scan tool MB991958, read the ETACS-ECU diagnostic trouble code
Check again if the DTC is set to the ETACS-ECU.
Is the DTC set?
Troubleshoot the ETACS-ECU (Refer to ).
Go to Step 3.
 
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is set to the combination meter.
(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.
Is the DTC set?
Replace the combination meter.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).