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. CONNECT: Scan Tool. IGNITION: ON. CHECK: Throttle valve position closed: SPECIFIED VALUE: 3 - 25%. DEPRESS: Accelerator pedal slowly to WOT while observing the percentage display. The percentage display must increase uniformly. CHECK: Throttle valve position at WOT: IGNITION: OFF. SPECIFIED VALUE: 84 - 97%. -- 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	REMOVE: Throttle Valve Control Module -GX3 - far enough so that the harness connector terminals are accessible. DISCONNECT: Throttle Valve Control Module -GX3- harness connector. IGNITION: ON. CHECK: Throttle Valve Control Module -GX3- harness connector terminals 2 to 6 for voltage. IGNITION: OFF. SPECIFIED VALUE: About 5.0 V. -- Was Value obtained?	-- YES: GO TO: Step 4 -- NO: GO TO: Step 5
4	REMOVE: Engine Control Module - J623-. Refer to appropriate repair information. CHECK: Throttle Valve Control Module -GX3- harness connector terminal 1 to the Engine Control Module - J623- harness connector T60 / 39 for resistance. CHECK: Throttle Valve Control Module -GX3- harness connector terminal 3 to the Engine Control Module - J623- harness connector T60 / 49 for resistance. CHECK: Throttle Valve Control Module -GX3- harness connector terminal 4 to the Engine Control Module - J623- harness connector T60 / 23 for resistance. CHECK: Throttle Valve Control Module -GX3- harness connector terminal 5 to the Engine Control Module - J623- harness connector T60 / 34 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	-- YES: REPLACE: Throttle Valve Control Module -GX3-. 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
5	REMOVE: Engine Control Module - J623-. Refer to appropriate repair information. CHECK: Throttle Valve Control Module -GX3- harness connector terminal 2 to the Engine Control Module - J623- harness connector T60 / 41 for resistance. CHECK: Throttle Valve Control Module -GX3- harness connector terminal 6 to the Engine Control Module - J623- harness connector T60 / 24 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	-- YES: 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.