DTC B1176: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Short

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 ).

Clear the DTCs with the HDS.
Turn the ignition switch to LOCK (0), and then back to ON (II).
Wait for at least 30 seconds.
Check for DTCs with the HDS.
Is DTC B1176 indicated?

YES -Go to step 5.

NO -Intermittent failure, the fuel level sensor circuit is OK at this time. Check for worn/missing insulation or an internal short in the wire.
Turn the ignition switch to LOCK (0).
Disconnect the fuel tank unit 4P connector.
Clear the DTCs with the HDS.
Turn the ignition switch to ON (II).
Wait for at least 30 seconds.
Check for DTCs with the HDS.
Is DTC B1176 indicated?

YES -Go to step 11.

NO -Faulty fuel gauge sending unit; replace the fuel tank unit (see FUEL PUMP/FUEL GAUGE SENDING UNIT REPLACEMENT ).
Turn the ignition switch to LOCK (0).
Disconnect the gauge control module 32P connector.
Check for continuity between gauge control module 32P connector terminal No. 6 and body ground.
GAUGE CONTROL MODULE 32P CONNECTOR FUEL UNIT (PUR)

Fig 1: Checking Continuity Between Gauge Control Module 32P Connector Terminal No. 6 And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

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

NO -Go to step 14.
Check for continuity between gauge control module 32P connector terminals No. 6 and No. 18.
GAUGE CONTROL MODULE 32P CONNECTOR

Fig 2: Check For Continuity Between Gauge Control Module 32P Connector Terminals No. 6 And No. 18
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair a short in the wires between the gauge control module connector and the fuel tank unit. ■

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