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 -- NO: Gather more Information from customer about the complaint
2	IGNITION: OFF DISCONNECT: Fuel Pressure Regulator Valve -N276- electrical connector CHECK: Fuel Pressure Regulator Valve -N276- component connector pins 1 to 2 for resistance. SPECIFIED VALUE: 4.1 Ω (+/- 1.5 Ω at approx. 20° C) -- Was Value obtained?	-- YES: GO TO: Step 3 -- NO: REPLACE: Fuel Pressure Regulator Valve -N276-. Refer to appropriate service information. GO TO: Step 5
3	IGNITION: ON CHECK: Fuel Pressure Regulator Valve -N276- electrical connector terminal 1 to ground. SPECIFIED VALUE: Battery voltage IGNITION: OFF -- Was Value obtained?	-- YES: 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 REPLACE: any open Fuses GO TO: Step 5
4	REMOVE: Engine Control Module - J623-. Refer to appropriate service information. CHECK: Fuel Pressure Regulator Valve -N276- electrical connector terminal 2 to the Engine Control Module - J623- electrical connector T60 / 45 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω) -- Was Value obtained?	-- YES: REPLACE: Engine Control Module -J623-. Refer to the Repair Information. GO TO: Step 5 -- 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 5
5	Final Procedure Perform a road test to verify repair. Do any DTC's return:	-- YES: Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY . Perform the diagnostic procedure for that DTC. -- NO: Repair is complete, Generate readiness code. Refer to READINESS CODE . Return vehicle to Customer