DTC U0230, U1281, U1288, U128F (Gauge control module)
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: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .
- 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 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 |
DTC (Gauge Control Module)
- Problem verification
-1. Clear the DTCs with the HDS.
-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.
- 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 connector A (32P) -3. Disconnect the transmitting control unit connectors.
Refer to the DTC shown on the display, then disconnect the connector(s) based on the instructions (see table).
DTC Connector U0230 Power tailgate control unit connector A (24P) U1281 Under-dash fuse/relay box connector M (12P) U1288 Parking and back-up sensor control unit 16P connector U128F 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.
Is there continuity?
YES
The B-CAN_L to B-CAN_H wire is OK. According to the detected DTC on the following table replace the correspond control unit.
DTC Operation for Transmitting Control Unit U0230 Power tailgate control unit - Refer to: Power Tailgate Control Unit Removal and Installation U1281 Under-dash fuse/relay box - Refer to: Under-Dash Fuse/Relay Box Removal and Installation (2019) or Under-Dash Fuse/Relay Box Removal and Installation U1288 Parking and back-up sensor control unit DTC Operation for Transmitting Control Unit U128F Left side BSI radar unit NO
Repair an open or high resistance in the B-CAN_H and/or B-CAN_L wire.