DTC B1176 (2017 2018 2019 2020 2021 2022 2023)

DTC B1176  : Fuel level sensor (fuel gauge sending unit) circuit short

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 .

1. Problem verification

   -1. Check the fuel gauge.

   Does the fuel gauge move to the full position and the low fuel indicator blink?

   YES 

   Go to step 2.

   NO 

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

2. Fuel gauge operation check

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

   -2. Disconnect the following connector.

   Fuel tank unit 4P connector

   -3. Turn the vehicle to the ON mode.

   -4. Check the fuel gauge.

   Does the fuel gauge move to the empty position?

   YES 

   Replace the fuel tank unit .

   NO 

   Go to step 3.

3. Shorted wire check (FUEL+ line)

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

   -2. Disconnect the following connector.

   Gauge control module 32P connector

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

   Test condition	Vehicle OFF (LOCK) mode Fuel tank unit 4P connector: disconnected Gauge control module 32P connector: disconnected
   Test point 1	Gauge control module 32P connector No. 21
   Test point 2	Body ground

   Is there continuity?

   YES 

   Repair a short to ground in the wire between the gauge control module and the fuel tank unit.

   NO 

   The FUEL+ wire is OK. Replace the gauge control module .