Oil Level Thermal Sensor - G266-, Checking

General Description

The Oil Level Thermal Sensor -G266- provides continuous oil temperature measurements to the Engine Control Module -J623-. The Oil Level Thermal Sensor -G266- also provides oil level measurements 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 automatic transmission, ensure the selector lever position is in "P".
Vehicles with manual transmission, ensure the shifter lever position is in "N" with the parking brake applied.
Observe all safety precautions: SAFETY PRECAUTIONS .
View clean working conditions: CLEAN WORKING CONDITIONS .

Test Procedure

Step	Procedure	Result / Action to Take
1	PERFORM: Preliminary Check to verify the customers concern. Refer to PRELIMINARY CHECK . -- Was concern verified?	-- YES: GO TO: Step 2 Oil Level Thermal Sensor - G266-, CHECKING - 2 . -- NO: GATHER more information from customer about the concern.
2	IGNITION: OFF. DISCONNECT: Oil Level Thermal Sensor -G266- harness connector. IGNITION: ON. CHECK: Oil Level Thermal Sensor -G266- harness connector terminals 1 to 2 for voltage. SPECIFIED VALUE: Battery voltage. -- Was Value obtained?	-- YES: GO TO: Step 3 Oil Level Thermal Sensor - G266-, CHECKING - 3 . -- NO: PERFORM: Visual Inspection of wiring and component. CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals. REPAIR: Faulty wiring or connector. GO TO: Step 4 Oil Level Thermal Sensor - G266-, CHECKING - 4 .
3	REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information. CHECK: Oil Level Thermal Sensor -G266- harness connector terminal 3 to the Engine Control Module - J623- harness connector T91a / 59 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Was Value obtained?	-- YES: REPLACE: Oil Level Thermal Sensor -G266-. Refer to appropriate Service Information. GO TO: Step 4 Oil Level Thermal Sensor - G266-, CHECKING - 4 . -- NO: PERFORM: Visual Inspection of wiring and component. CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals. REPAIR: Faulty wiring or connector. GO TO: Step 4 Oil Level Thermal Sensor - G266-, CHECKING - 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 Service 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.