U1419

DTC U1419: The signal from a weight sensor (Front: LH) is unusual
DTC U141A: The Signal From A Weight Sensor (Front: RH) Is Unusual
DTC U141B: The Signal From A Weight Sensor (Rear: LH) Is Unusual
DTC U141C: The Signal From A Weight Sensor (Rear: RH) Is Unusual
DTC U1423: The Signal From A Weight Sensor Is Unusual

DTC SET CONDITIONS
There DTCs are set if communication between the weight sensor and the occupant classification-ECU is not possible or faulty.

TROUBLESHOOTING HINTS
- Malfunction of weight sensor
- The occupant classification-ECU may be defective.

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 (Vehicles with CAN communication system)

STEP 1. Recheck for diagnostic trouble code.







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

Q: Is the DTC set?

YES: Go to Step 2.

NO: There is an intermittent malfunction such as poor engaged connector(s) or open circuit.

STEP 2. Check the weight sensor.

Check the diagnostic trouble code.

Q: Is DTC U1419, U141A, U141B, U141C, U1423 set?

YES: Replace the slide adjuster (RH).

NO: The procedure is complete.