B1175

DTC B1175: Fuel Gauge Sending Unit Signals Input Error

1. Do the fuel gauge sending unit test.

Is the fuel gauge sending unit OK?

YES - Go to step 2.

NO - Replace the fuel gauge sending unit.

2. Disconnect the gauge 30P connector control module.




3. Check for continuity between the No. 3 and No. 4 terminals of the gauge control module 30P connector and No. 1 and No. 2 terminals of the fuel pump/fuel gauge sending unit 5P connector.

Is there continuity?

YES - Go to step 4.

NO - Repair an open in the BLK/WHT or YEL/BLK wire between the gauge control module and fuel gauge sending unit.




4. Check for continuity between the No. 3 and No. 4 terminals of the gauge control module 30P connector and body ground.

Is there continuity?

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

NO - Inspect all pinfits between the gauge control module and the sending unit. If circuit integrity is good, and the problem still exist, swap gauge control module with a known-good one. If the problem is gone, replace the gauge control module.