Test Procedure

NOTE:

When the door is opened or the Ignition is turned to the ON position the fuel pump is activated for 2 seconds to build up the pressure in the fuel system.

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: ON. LISTEN: Transfer Fuel Pump -G6- should be heard running for 2 sec. SPECIFIED VALUE: Transfer Fuel Pump ON for 2 sec. IGNITION: OFF. -- Was Value obtained?	-- YES: Condition may be intermittent. 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 6. -- NO: GO TO Step 3.
3	DISCONNECT: Fuel Pump Control Module -J538-. IGNITION: ON. CHECK: Fuel Pump Control Module -J538- harness connector terminal 6 to 1 and 3 for voltage. CHECK: Fuel Pump Control Module -J538- harness connector terminals 5 and 6 to battery voltage for voltage. SPECIFIED VALUE: Battery voltage. IGNITION: OFF. -- Were Values obtained?	-- YES: GO TO Step 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. REPLACE: Any open fuses. GO TO: Step 6.
4	RECONNECT: Fuel Pump Control Module -J538-. DISCONNECT: Transfer Fuel Pump -G6-. CRANK: Engine. CHECK: Transfer Fuel Pump -G6- harness connector terminals 1 to 5 for voltage while engine is cranking. IGNITION: OFF SPECIFIED VALUE: 7 - 11 V. -- Was Value obtained?	-- YES: REPLACE: Transfer Fuel Pump -G6-, Refer to appropriate repair information. GO TO: Step 6. -- NO: GO TO: Step 5.
5	REMOVE: Engine Control Module -J623-. Refer to the appropriate repair information. DISCONNECT: Fuel Pump Control Module -J538-. CHECK: Fuel Pump Control Module -J538- harness connector terminal 2 to Engine Control Module -J623- harness connector terminals T94 / 27 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Was Value obtained?	-- YES: REPLACE: Fuel Pump Control Module -J538-. Refer to the appropriate repair information. PERFORM: Road Test to verify repair. FAULT DOES NOT RETURN: Generate readiness code. Refer to READINESS CODE . FAULT DOES RETURN: No malfunction is detected in the wiring. REPLACE: Engine Control Module -J623-. Refer to appropriate repair information. GO TO: Step 6. -- 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 6.
6	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.