DTC B1175: Fuel Level Sensor (Fuel Gauge Sending Unit) Signals Input Error

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Do the fuel gauge sending unit test (see FUEL GAUGE SENDING UNIT TEST ).
Is the fuel gauge sending unit OK?

YES -Go to step 2.

NO -Replace the fuel gauge sending unit.
Disconnect the fuel pump/fuel gauge sending unit 5P connector and the gauge control module connector A (30P).
Check for continuity between the fuel pump/fuel gauge sending unit 5P connector No. 1 and No. 2 terminals and gauge control module connector A OOP) No. 9 and No. 10 terminals individually.

Fig 1: Checking Continuity Between Fuel Pump/Fuel Gauge Sending Unit 5P Connector And Gauge Control Module Connector (30P)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 4.

NO -Repair an open or loose connection in the BLK /WHT or YEL/BLK wire between the gauge control module connector A (30P) and fuel pump/fuel gauge sending unit 5P connector.
Check for continuity between gauge control module connector A (30P) No. 9 and No. 10 terminals and body ground individually.

Fig 2: Checking Continuity Between Gauge Control Module Connector (30P) No. 9 And 10 Terminals And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short to ground in the BLK/WHT or YEL/BLK wire.

NO -Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).