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 ECM [M/T] or PCM [A/T] 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 (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

Recheck for diagnostic trouble code.

Recheck if the diagnostic trouble code is set.





(1)
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).

Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to "ON" position.
(3)Erase the diagnostic trouble code.
(4)Turn the ignition switch to the "LOCK" (OFF) position.
(5)Turn the ignition switch to "ON" position.
(6)Drive the vehicle and check that the diagnostic trouble code is not set.
(7)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is the check result normally?

YES An intermittent malfunction is suspected. How to Cope With Intermittent Malfunctions.

NO Replace the combination meter.