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

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  Note

  • Perform the following test only when directed.

## Resistance Inspection

1. Disconnect the negative battery cable.

2. Remove the supply pump. (See SUPPLY PUMP REMOVAL/INSTALLATION [MZR-CD (RF Turbo)].)

3. Measure the resistance between the fuel temperature sensor terminals using an ohmmeter.

  • If not as specified, repair the supply pump. (See SUPPLY PUMP INSPECTION [MZR-CD (RF Turbo)].)
  • If fuel temperature sensor is okay, perform the "Circuit Open/Short Inspection".

Specification

Ambient temperature (°C {°F}) | Resistance (kilohm)
--- | ---
20 {68} | 2.21-2.69*1
2.32-2.59*2

  *1 :
First digit below name plate mark * is 1.
  *2 :
First digit below name plate mark * is 2.

## Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [MZR-CD (RF Turbo)])

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

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

### Open circuit

  • Fuel temperature sensor terminal A and PCM terminal 50
  • Fuel temperature sensor terminal B and PCM terminal 70

### Short circuit

  • Fuel temperature sensor terminal A and power supply
  • Fuel temperature sensor terminal A and body ground
  • Fuel temperature sensor terminal B and power supply