B1200

DTC B1200: Defective odometer

CAUTION:
- If DTC B1200 is set in the combination meter, always diagnose the CAN bus lines
- Whenever the ECU is replaced, ensure that the communication circuit is normal

CIRCUIT OPERATION
The combination meter receives a signal from the PCM and displays the driven distance

DTC SET CONDITION
If an abnormal value is sent from the odometer, the combination meter sets DTC B1200

TECHNICAL DESCRIPTION (COMMENT)
The wiring harness or connectors may have loose, corroded, or damage terminals, or terminals pushed back in the connector, or the combination meter may be defective

TROUBLESHOOTING HINTS
- The wiring harness or connectors may have loose, corroded, or damaged terminals, or terminals pushed back in the connector
- Malfunction of combination meter

DIAGNOSIS

Required Special Tools:
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: Vehicles Communication Interface (VCI)
- MB991827: MUT-III USB Cable
- MB991910: MUT-III Main Harness A (Vehicles with CAN communication system)

STEP 1 Recheck for diagnostic trouble code

Recheck if the DTC is set




1. Erase the DTC
2. Turn the ignition switch to "OFF" position
3. Turn the ignition switch to "ON" position
4. Drive the vehicle and check that the diagnostic trouble code is not set

Q: Is the check result satisfactory?

YES: An intermittent malfunction is suspected Refer to GROUP 00, How to Use Troubleshooting / Inspection Service Points - How to Cope with Intermittent Malfunction

NO: Replace combination meter