Engine Temperature Control Sensor -G694-, CHECKING
Function
The Engine Temperature Control Sensor -G694- sends information about the current coolant temperature to the Engine Control Module -J623-. It uses the coolant temperature as a correction value for calculating the injection quantity.
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: SAFETY PRECAUTIONS
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: Engine Temperature Control Sensor -G694- harness connector
- CHECK: Engine Temperature Control Sensor -G694- terminals 1 to 2 for resistance.
- SPECIFIED VALUE: 2606 Ω (+/- 314 Ω @ approx. 20° C)
-- Was value obtained? |
-- YES:
-- NO:
- REPLACE: Engine Temperature Control Sensor -G694-. Refer to appropriate repair information.
- GO TO: Step 4
|
| 3 |
- REMOVE: Engine Control Module - J623-. Refer to appropriate service information.
- CHECK: Engine Temperature Control Sensor -G694- harness connector terminals 1 to the Engine Control Module - J623- harness connector terminals T105 / 33 fro resistance.
- CHECK: Engine Temperature Control Sensor -G694- harness connector terminals 2 to the Engine Control Module - J623- harness connector terminals T105 / 12 for resistance.
- SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained? |
-- YES:
- REPLACE Engine Control Module -J623- Refer to appropriate repair information
- GO TO: Step 4
-- 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.
- Do any DTC's return:
|
-- YES:
-- NO:
- Repair is complete, Generate readiness code. Refer to READINESS CODE
.
- Return vehicle to Customer
|