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 s. 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 terminals 1 to 6 for voltage. SPECIFIED VALUE: Battery voltage. IGNITION: OFF. -- Was Value 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. 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. CHECK: Fuel Pump Control Module -J538- harness connector terminal 2 to Engine Control Module -J623- harness connector T91 / 9 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. 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. -- 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 repair 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.