Fuel Temperature Sensor -G81-, Checking
General Description
The Fuel Temperature Sensor -G81- sends information about the current fuel temperature to the Engine Control Module -J623-.
Special Tools And Workshop Equipment Required
- Multimeter.
- Wiring Diagram.
- Scan Tool.
Test Requirements
- Fuses OK.
- Battery voltage OK.
- Switch OFF all electrical and electronic accessories.
- Vehicles with Auto. Transmission, ensure Selector Lever position is in "P".
- Vehicles with Man. Transmission, ensure Shifter Lever position is in "N" with Parking Brake applied.
- Observe all safety precautions, refer to SAFETY PRECAUTIONS
.
- View clean working conditions, refer to CLEAN WORKING CONDITIONS
.
- For Hybrid vehicles refer to: HIGH VOLTAGE SYSTEM GENERAL WARNINGS
.
Test Procedure
| Step |
Procedure |
Result / Action to Take |
| 1 |
- PERFORM: Preliminary Check to verify the customers complaint. Refer to PRELIMINARY CHECK
-- Was complaint verified? |
-- YES:
-- NO:
- Gather more Information from customer about the complaint
|
| 2 |
- IGNITION: OFF
- DISCONNECT: Fuel Temperature Sensor -G81- electrical connector
- CHECK: Fuel Temperature Sensor -G81- terminals 1 to 2 for resistance.
- SPECIFIED VALUE: 2000 to 2400 Ω (@ approx. 20° C)
-- Was value obtained? |
-- YES:
-- NO:
- REPLACE: Fuel Temperature Sensor -G81-. Refer to appropriate repair information.
- GO TO: Step 4
|
| 3 |
- REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
- CHECK: Fuel Temperature Sensor -G81- electrical connector terminals 1 to the Engine Control Module - J623- electrical connector terminals T60 / 24.
- CHECK: Fuel Temperature Sensor -G81- electrical connector terminals 2 to the Engine Control Module - J623- electrical connector terminals T60 / 25.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained? |
-- YES:
-- NO:
- CHECK: wiring for open, high resistance, short or electrical connector for damage, corrosion, loose or broken terminals
- REPAIR: faulty wiring or connector
- GO TO: Step 4
|
| 4 |
- Final Procedure
- Perform a road test to verify repair.
-- Does the original DTC return? |
-- YES:
- CHECK: Engine Control Module -J623- harness connector for any damaged, pushed-out pins.
- REPAIR: As necessary.
- If all electrical connections are OK:
- REPLACE: Engine Control Module -J623-. Refer to appropriate repair information.
- Clear the DTC's. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY
.
- Repair is complete. Generate Readiness Code. Refer to READINESS CODE
.
- Return vehicle to Customer.
-- NO:
- Perform the diagnostic procedure for any DTC's.
- If no DTC's return the repair is complete.
- Return vehicle to customer.
|