Fuel Tank Pressure Sensor Inspection
WARNING: This page is about a different variant/trim than selected.
- IG "ON".
- Disconnect hose connecting FTPS to the Fuel Tank.
- Using a vacuum pump, apply vacuum to the hose connecting to FTPS.
- Measure FTPS output voltage between signal terminal of the FTPS harness connector and chassis ground.
Specification: Voltage increases proportionally with decreasing pressure.
Pressure (kPa) Output Voltage (V) -6.67 0.5 0 2.5 6.67 4.5 - Is voltage within the specification?
YES
- Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Substitute with a known - good FTPS and check for proper operation. If the problem is corrected, replace FTPS and go to "VERIFICATION OF VEHICLE REPAIR " procedure.