DTC U0151 (Gauge Control Module (Without CAN Gateway)) (2016 2017 2018 2019 2020)

DTC U0151  : Gauge control module lost communication with SRS unit

DTC (Gauge Control Module)

NOTE: 

• Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information - Refer to:

  How to Troubleshoot the Fuel and Emissions Systems (2014 2015 2016 2017 2018 2019 2020) or

  How to Troubleshoot the Fuel and Emissions Systems (With Auto Idle Stop System) (2016 2017 2018 2019 2020)

• 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 (2014 2015 2016) or Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks (2017 2018 2019 2020)
• Wire colors may be substituted for SRS circuits.

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
   U0151 Gauge control module lost communication with SRS unit

   Is DTC U0151 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 (F-CAN A lines)

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

   - 2. Disconnect the following connectors.

   Gauge control module connector A (32P)

   SRS unit connector A (39P) - Refer to: SRS Unit Removal and Installation (2017 2018 2019 2020), or SRS Unit Removal and Installation (2014 2015 2016)

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

   Test condition	Vehicle OFF (LOCK) mode Gauge control module connector A (32P): disconnected SRS unit connector A (39P): disconnected
   Test circuit	F-CAN A_H
   Test point 1	Gauge control module connector A (32P) No. 27 (WHT)
   Test point 2	SRS unit connector A (39P) No. 20 (WHT)

   Test circuit	F-CAN A_L
   Test point 1	Gauge control module connector A (32P) No. 28 (BRN)
   Test point 2	SRS unit connector A (39P) No. 21 (BRN)

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

   Is there continuity?

   YES 

   The F-CAN A wires are OK. Replace the gauge control module .

   NO 

   An open or poor connection in the F-CAN A wires between the SRS unit and the gauge control module.