FUEL TEMPERATURE SENSOR INSPECTION [WL-C, WE-C]

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Note
•  Perform the following inspection only when directed.

Resistance Inspection

1.  Remove the supply pump. (See SUPPLY PUMP REMOVAL/INSTALLATION [WL-C, WE-C].)

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

•  If not as specified, repair the supply pump. (See SUPPLY PUMP INSPECTION [WL-C, WE-C].)
•  If as specified, carry out the “Circuit Open/Short Inspection”.
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Specification

Ambient temperature

(°C {°F})

Resistance (kilohm)
–10 {14}
8.244—10.661
20 {68}
2.262—2.760
80 {176}
0.304—0.342


Circuit Open/Short Inspection

1.  Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [WL-C, WE-C].) (See PCM REMOVAL/INSTALLATION (U.K. Specs.) [WL-C, WE-C].)

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

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

•  Power circuit (Fuel temperature sensor connector terminal A and PCM connector terminal 115
•  Ground circuit (Fuel temperature sensor connector terminal B and PCM connector terminal 170


Short circuit

•  Fuel temperature sensor connector terminal A and PCM connector terminal 115 short to power
•  Fuel temperature sensor connector terminal A and PCM connector terminal 115 short to ground
•  Fuel temperature sensor connector terminal B and PCM connector terminal 170 short to power