Fuel Tank Differential Pressure Sensor
NOTE:
For Fuel Tank Differential Pressure (FTDP) sensor circuit testing, see DTC P0451: EVAP CONTROL SYSTEM PRESSURE SENSOR RANGE/PERFORMANCE, DTC P0452: EVAP CONTROL SYSTEM PRESSURE SENSOR LOW INPUT or DTC P0453: EVAP CONTROL SYSTEM PRESSURE SENSOR HIGH INPUT under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - SEBRING COUPE & STRATUS COUPE - 3.0L article. Manufacturer recommends connecting Test Connector (MB991348) to FTDP sensor during testing procedure.
Turn ignition off. Support fuel tank. Remove fuel tank band assembly. Tilt fuel tank and disconnect 3-pin FTDP sensor connector. Using test connector or jumper wires, connect all terminals on harness side of FTDP sensor connector to respective terminals on sensor side of FTDP sensor connector. Turn ignition on. Using DVOM, backprobe and measure voltage between FTDP sensor connector terminals No. 2 (Black wire) and No. 3 (Green/Yellow wire). See Fig 1 . Voltage should be 2-3 volts. If voltage is not 2-3 volts, replace FTDP sensor.