#
FUEL PRESSURE SENSOR INSPECTION [MZR-CD (RF Turbo)]

BME014018213W01

  Note

  • Perform the following test only when directed.

## Voltage Inspection

1. Start the engine and warm up the engine completely.

2. Measure the voltage between fuel pressure sensor terminals A and B using a voltmeter at idle.

  • If not as specified, perform the "Circuit Open/Short Inspection".

  - If there is no open/short circuit, replace the common rail.

Specification

  1.4-1.7 V

3. Turn off the engine and wait three minutes.

4. Turn the engine switch to ON.

5. Measure the voltage between fuel pressure sensor terminals A and B using a voltmeter.

  • If not as specified, perform the "Circuit Open/Short Inspection".

  - If there is no open/short circuit, replace the common rail.

Specification

  0.9-1.1 V

## CIrcuit Open/Short Inspection

1. Inspect for open/short circuit in the following wiring harnesses.

  • If there is open/short circuit, repair or replace wiring harnesses.

### Open circuit

  • Power circuit
  - Fuel pressure sensor terminal C and PCM terminal 90
  • Signal circuit
  - Fuel pressure sensor terminal B and PCM terminal 61
  • GND circuit
  - Fuel pressure sensor terminal A and PCM terminal 91

### Short circuit

  • Power circuit
  - Fuel pressure sensor terminal C and PCM terminal 90 to GND
  • Signal circuit
  - Fuel pressure sensor terminal B and PCM terminal 61 to power circuit
  - Fuel pressure sensor terminal B and PCM terminal 61 to GND