Fuel Pressure Sensor, Checking: Notes
Special tools and workshop equipment required
- Multimeter.
- Wiring diagram.
Test requirements
- The fuses OK.
- The Fuel Pump (FP) Control Module -J538- OK.
- The fuel filter OK.
- The battery voltage at least 12.5 V.
- All electrical consumers switched OFF (radiator fan must NOT run during test).
- A/C switched OFF.
- The fuel tank at least 1 /4 filled.
- The ignition switched OFF.
Test procedure
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK
Start diagnosis
-- Remove the engine cover with air filter.
Checking voltage
-- Disconnect the Fuel Pressure Sensor -G247- electrical harness connector.
-- Switch the ignition ON.
-- Using a Multimeter, Check the Fuel Pressure Sensor -G247- electrical harness connector terminals 1 to 3 for voltage.
Specified value: about 5.0 V
-- Switch the ignition Off.
Continue test according to the following table:
| Value | Cause | Test |
|---|---|---|
| If the specified value was not obtained: | Open or shorted circuit | Checking wiring |
| If the specified value was obtained: | Check reference signal circuit | Checking Activation |