DTC B1175: Fuel Gauge Unit Circuit Open
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0), and then back to ON (II).
- Wait more than 30 seconds.
- Check for DTCs with the HDS.
Is DTC B1175 indicated?
YES -Go to step 6.
NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the gauge assembly and the fuel gauge sending unit.
- Without disconnecting the gauge assembly or the fuel gauge sending unit connectors, measure the voltage between gauge assembly connector B (30P) terminal No. 10 and fuel gauge sending unit 5P connector terminal No. 2, and between gauge assembly connector B (30P) terminal No. 2 and fuel gauge sending unit 5P connector terminal No. 1.Fig 1: Measuring Voltage Between Gauge Assembly Connector B Terminal No. 10 And Fuel Gauge Sending Unit 5P Connector Terminal No. 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there less than 0.1 V?
YES -Go to step 7.
NO -Repair an open in the wire between the gauge assembly and the fuel gauge sending unit.
- Test the fuel gauge sending unit (see FUEL GAUGE SENDING UNIT TEST
).
Is the fuel gauge sending unit normal?
YES -Replace the gauge assembly (see GAUGE ASSEMBLY REPLACEMENT ).
NO -Replace the fuel gauge sending unit (see FUEL TANK UNIT REMOVAL/INSTALLATION ).