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 .
Is the fuel gauge sending unit OK?
1. YES - Go to step 2.
2. NO - Replace the fuel gauge sending unit.
Turn the ignition switch ON (II).
Check for voltage between the No. 9 and No. 10 terminals of gauge control module connector A (30P) and No. l and No. 2 terminals of the fuel pump/fuel gauge sending unit 5P connector.

Fig 1: Checking Voltage Between 9 & 10 Terminals Of Gauge Control Module Connector A (30P) And 1 & 2 Terminals Of Fuel Pump/Fuel Gauge
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there less than 1 V?
1. YES - Go to step 4.
2. NO - Repair an open or loose connection in the BLK/WHT or YEL/BLK wire between the gauge control module connector A OOP) and fuel pump/fuel gauge sending unit 5P connector.
Disconnect the fuel pump/fuel gauge sending unit 5P connector and the gauge control module connector A (30P).
Check for continuity between the No. 9 and No. 10 terminals of gauge control module connector A (30P) and body ground.

Fig 2: Checking Continuity Between 9 & 10 Terminals Of Gauge Control Module Connector A (30P) & Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?
1. YES - Repair a short to ground in the BLK/WHT or YEL/BLK wire.
2. NO - Replace the gauge control module (see GAUGE CONTROL MODULE REPLACEMENT ).