DTC U1288 (2016 2017 2018 2019 2020)

DTC U1288  : Gauge control module lost communication with PARKSR

DTC (Gauge Control Module)

1. 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
   U1288 Gauge control module lost communication with PARKSR

   Is DTC U1288 indicated?

   YES 

   Go to step 2.

   NO 

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

2. Determine possible failure area (parking and back-up sensor control unit power and ground, B-CAN line)

   -1. Select B-CAN CONTROL UNITS INFORMATION from the BODY ELECTRICAL SYSTEM SELECT menu, and then select CHECK CONNECTED CONTROL UNITS.

   -2. Check the DETECT/NOT AVAILABLE information of the PARKING SENSOR MODULE

   Is DETECT indicated?

   YES 

   Go to step 5.

   NO 

   Go to step 3.

3. Fuse check

   -1. Check the following fuse.

   Fuse	No. D10 (7.5 A)
   Location	Driver's under-dash fuse/relay box

   Is the fuse OK?

   YES 

   Go to step 4.

   NO 

   Replace the fuse. If the fuse blows again, repair a short to ground in the No. D10 (7.5 A) fuse circuit.

4. Open wire check (IG1 DR1 line)

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

   -2. Disconnect the following connector.

   Parking and back-up sensor control unit 24P connector

   -3. Turn the vehicle to the ON mode.

   -4. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle ON mode Parking and back-up sensor control unit 24P connector: disconnected
   Test circuit	IG1 DR1
   Test point 1	Parking and back-up sensor control unit 24P connector No. 1 (YEL)
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   Repair an open or high resistance in the ground wire or poor ground (G501).

   NO 

   Repair an open or high resistance in the wire.

5. Open wire check (B-CAN_H line)

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

   -2. Disconnect the following connectors.

   Gauge control module connector A (32P)

   Parking and back-up sensor control unit 24P connector

   -3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Gauge control module connector A (32P): disconnected Parking and back-up sensor control unit 24P connector: disconnected
   Test circuit	B-CAN_H
   Test point 1	Parking and back-up sensor control unit 24P connector No. 22 (RED)
   Test point 2	Gauge control module connector A (32P) No. 25 (RED)

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The B-CAN_H wire is OK. Go to step 6.

   NO 

   An open or poor connection in the B-CAN_H wire between the parking and back-up sensor control unit and the gauge control module.

6. Open wire check (B-CAN_L line)

   -1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode Gauge control module connector A (32P): disconnected Parking and back-up sensor control unit 24P connector: disconnected
   Test circuit	B-CAN_L
   Test point 1	Parking and back-up sensor control unit 24P connector No. 10 (WHT)
   Test point 2	Gauge control module connector A (32P) No. 26 (WHT)

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The B-CAN_L wire is OK. Replace the parking and back-up sensor control unit .

   NO 

   An open or poor connection in the B-CAN_L wire between the parking and back-up sensor control unit and the gauge control module.