DTC : U0230, U1281, U1288, U128F (Gauge Control Module) (2016 2017 2018)

DTC U0230  : Gauge Control Module Lost Communication with PTG

DTC U1281  : Gauge Control Module Lost Communication with MICU (MICU frame)

DTC U1288  : Gauge Control Module Lost Communication with PARKSR

DTC U128F  : Gauge Control Module Lost Communication with BSI Unit

NOTE: 

• Refer to the DTC code shown on the display, and then inspect the connectors and terminals based on the instructions in the table below.
• The DTC may be stored due to the grounding failure or the power source failure at the transmitting control unit

  (the grounding inspection and the power source inspection on each control unit are required prior to this checking process).

DTC (Gauge Control Module)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .

1. Problem verification

   - 1. Clear the DTCs with the HDS.

   Clear DTCs

   - 2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   - 3. Wait for at least 6 seconds.

   - 4. Check for DTCs with the HDS.

   DTC Description	DTC
   U0230 Gauge Control Module Lost Communication with PTG
   U1281 Gauge Control Module Lost Communication with MICU (MICU frame)
   U1288 Gauge Control Module Lost Communication with PARKSR
   U128F Gauge Control Module Lost Communication with BSI unit

   Are any DTCs indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time, Check for loose or poor connections.

2. Open wire check (B-CAN_H, B-CAN_L line)

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the receiving control unit connector.

   Gauge control module 32P connector

   - 3. Disconnect the transmitting control unit connectors.

   Power tailgate control unit connector C (14P)

   Under-dash fuse/relay box connector M (12P)

   Parking and back-up sensor control unit 24P connector

   Left side BSI radar unit 6P connector

   - 4. Check for continuity between the receiving control unit and the transmitting control unit on the B-CAN_H circuit and the B-CAN_L circuit as specified in the table while in the vehicle OFF (LOCK) mode.

   DTC	CIRCUIT NAME	RECEIVING CONTROL UNIT	TRANSMITTING CONTROL UNIT
   U0230 Gauge Control Module Lost Communication with PTG	B-CAN_H	Gauge control module 32P connector No. 26 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Power tailgate control unit connector C (14P) No. 1 - Refer to:  Power Tailgate Control Unit Connector for Inputs and Outputs (2016 2017 218)
   	B-CAN_L	Gauge control module 32P connector No. 27 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Power tailgate control unit connector C (14P) No. 2 - Refer to:  Power Tailgate Control Unit Connector for Inputs and Outputs (2016 2017 218)
   U1281 Gauge Control Module Lost Communication with MICU (MICU frame)	B-CAN_H	Gauge control module 32P connector No. 26 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Under-Dash Fuse/Relay Box Connector M (12P) No. 7
   	B-CAN_L	Gauge control module 32P connector No. 27 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Under-Dash Fuse/Relay Box Connector M (12P) No. 1
   U1288 Gauge Control Module Lost Communication with PARKSR	B-CAN_H	Gauge control module 32P connector No. 26 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Parking and back-up sensor control unit 24P connector No. 22 - Refer to:  Parking and Back-Up Sensor Control Unit Connector for Inputs and Outputs (2016 2017 218)
   	B-CAN_L	Gauge control module 32P connector No. 27 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Parking and back-up sensor control unit 24P connector No. 10 - Refer to:  Parking and Back-Up Sensor Control Unit Connector for Inputs and Outputs (2016 2017 218)
   U128F Gauge Control Module Lost Communication with BSI unit	B-CAN_H	Gauge control module 32P connector No. 26 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Left Side BSI Radar Unit 6P Connector No. 3
   	B-CAN_L	Gauge control module 32P connector No. 27 - Refer to:  Gauge Control Module Connector for Inputs and Outputs (2016 2017 218)	Left Side BSI Radar Unit 6P Connector No. 5

   Is there continuity?

   YES 

   The B-CAN_L to B-CAN_H wire is OK. Go to step 3.

   NO 

   Repair an open or high resistance in the B-CAN_H and/or B-CAN_L wire (S) between the receiving control unit and the transmitting control unit.

3. Determine possible failure area (the receiving control unit or the transmitting control unit)

   - 1. Reconnect all connectors.

   - 2. Turn the vehicle to the ON mode.

   - 3. Clear the DTCs with the HDS.

   Clear DTCs

   - 4. Check for DTCs with the HDS.

   DTC Description	DTC
   U0230 Gauge Control Module Lost Communication with PTG
   U1281 Gauge Control Module Lost Communication with MICU (MICU frame)
   U1288 Gauge Control Module Lost Communication with PARKSR
   U128F Gauge Control Module Lost Communication with BSI unit

   Are any DTCs indicated?

   YES 

   Check for loose terminals and poor connections in the gauge control module connector. Check is OK, replace the Gauge Control Module .

   NO 

   The gauge control module is OK at this time. Update or replace the transmitting control unit.

   (Refer to the DTC code shown on the display, and then replace the control unit based on the instructions in the table below.)

   DTC	TRANSMITTING CONTROL UNIT
   U0230 Gauge Control Module Lost Communication with PTG	Replace the Power Tailgate Control Unit
   U1281 Gauge Control Module Lost Communication with MICU (MICU frame)	Update the MICU or Replace the MICU
   U1288 Gauge Control Module Lost Communication with PARKSR	Replace the Parking And Back-Up Sensor Control Unit
   U128F Gauge Control Module Lost Communication with BSI unit	Replace the BSI Radar Unit