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

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 (Refer to general (Body and Chassis), How to Cope with Intermittent Malfunction).

STEP 2. Check the weight sensor.

Replace weight sensor
Check the diagnostic trouble code.

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

YES: Replace the slide adjuster (RH) (Refer to Interior, Front Seat Assembly).

NO: The procedure is complete.