Tests DE: Flexible Fuel (FF) Sensor

Note

This Pinpoint Test is intended to diagnose the following:

- Flexible Fuel (FF) sensor (9C044).
- Harness circuits: FF SIG, Vehicle Power (VPWR) and Power Ground (PWR GND).
- Powertrain Control Module (PCM) (12A650).

Warning

THE FUEL SYSTEM IS PRESSURIZED WHEN THE ENGINE IS NOT RUNNING. TO PREVENT INJURY OR FIRE, USE CAUTION WHEN WORKING ON THE FUEL SYSTEM. BECOME FAMILIAR WITH THE WARNING AND SAFE FUEL HANDLING PRACTICES IN PINPOINT TEST HB BEFORE SERVICING.

Pinpoint Test Schematics and Connectors