Fuel Pressure Sensor - G247-, Checking: Notes

General Description

The Fuel Pressure Sensor -G247- Measures The Fuel Pressure In The High-Pressure Fuel System. The Engine/Motor Control Module -J623- Analyzes The Signal And Regulates The Fuel High Pressure Through The Fuel Metering Valve -N290- And The Fuel Metering Valve 2 -N402- In The High Pressure Fuel Pump.

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 complaint. Refer to PRELIMINARY CHECK . -- Was Complaint verified?	-- YES: GO TO: Step 2 Fuel Pressure Sensor - G247-, CHECKING - 2 . -- NO: GATHER more information from customer about the complaint.
2	IGNITION: OFF. DISCONNECT: Fuel Pressure Sensor -G247- harness connector. IGNITION: ON. CHECK: Fuel Pressure Sensor -G247- harness connector terminals 1 to 3 for voltage. IGNITION: OFF. SPECIFIED VALUE: About 5.0 V. -- Was Value obtained?	-- YES: GO TO: Step 3 Fuel Pressure Sensor - G247-, CHECKING - 3 . -- NO: GO TO: Step 4 Fuel Pressure Sensor - G247-, CHECKING - 4 .
3	REMOVE: Engine/Motor Control Module -J623-. Refer to appropriate service information. CHECK: Fuel Pressure Sensor -G247- harness connector terminal 2 to the Engine/Motor Control Module -J623- harness connector T60 / 25 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Was Value obtained?	-- YES: REPLACE: Fuel Pressure Sensor -G247-. Refer to appropriate service information. GO TO: Step 5 Fuel Pressure Sensor - G247-, CHECKING - 5 . -- 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 5 Fuel Pressure Sensor - G247-, CHECKING - 5 .
4	REMOVE: Engine/Motor Control Module -J623-. Refer to appropriate service information. CHECK: Fuel Pressure Sensor -G247- harness connector terminal 1 to the Engine/Motor Control Module -J623- harness connector T60 / 14 for resistance. CHECK: Fuel Pressure Sensor -G247- harness connector terminal 3 to the Engine/Motor Control Module -J623- harness connector T60 / 26 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	-- YES: GO TO: Step 5 Fuel Pressure Sensor - G247-, CHECKING - 5 . -- 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 5 Fuel Pressure Sensor - G247-, CHECKING - 5 .
5	Refer to the Final Procedure Below