C1900

DTC C1900: TPMS Abnormality (ID Code Not Registered)

TPMS DTC SET CONDITION
DTC C1900 will be set if the tire pressure sensor IDs are not registered correctly in the TPMS receiver. At the same time this DTC is set, the TPMS warning light flashes.

TROUBLESHOOTING HINT
Execute "Tire Pressure Sensor ID Registration" on scan tool MB991958 "Special Function."

DIAGNOSIS
Required Special Tools:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: Vehicle Communication Interface (V.C.I.)
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

STEP 1. Execute "Tire Pressure Sensor ID Registration" on scan tool MB991958 "Special Function."

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 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Execute "Tire Pressure Sensor ID Registration".
Q:Is the "Tire Pressure Sensor ID Registration" complete?
YES: Go to Step 2.
NO: Go to Step 4.

STEP 2. Check the diagnostic trouble code.

NOTE: If the "Tire Pressure Sensor ID Registration" has been completed successfully, the DTC will be erased automatically.

Q:Does diagnostic trouble code C1900 reset?
YES: Go to Step 3.
NO: The procedure is complete.

STEP 3. Execute "Tire Pressure Sensor ID Check" on scan tool MB991958 "Special Function."
All the tire pressure sensor IDs, which have been registered in Step 1, should be displayed on scan tool MB991958.
Q:Are all the registered tire pressure sensor IDs displayed?
YES: Replace the TPMS receiver. Then go to Step 1.
NO: Repeat the troubleshooting from Step 1.

STEP 4. Execute "Tire Pressure Sensor Check" on scan tool MB991958 "Special Function."
Q:Are all tire pressure sensor IDs displayed?
YES: Repeat the troubleshooting from Step 1.
NO: Carry out troubleshooting for DTC C1911/C1921/C1931/C1941 (tire pressure sensor ID reception failure) from the Step 3.