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	DISCONNECT: For Jetta / Beetle, the Vehicle Electrical System Control Module -J519- harness connector. DISCONNECT: For Passat, the Instrument Cluster Control Module -J285- harness connector. The Engine Control Module -J623- must remain connected for the following step. CHECK: For Jetta / Beetle, the Vehicle Electrical System Control Module -J519- harness connector terminals 18 to 19 for resistance. CHECK: For Passat, the Instrument Cluster Control Module -J285- harness connector terminals 28 to 29 for resistance. SPECIFIED VALUE: 60 - 72 Ω (at approx. 20° C). -- 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 4 -- NO: GO TO: Step 3
3	REMOVE: Engine Control Module - J623-. Refer to appropriate repair information. CHECK: For Jetta / Beetle, the Vehicle Electrical System Control Module -J519- harness connector terminal 18 to the Engine Control Module - J623- harness connector T91 / 80 for resistance. CHECK: For Jetta / Beetle, the Vehicle Electrical System Control Module -J519- harness connector terminal 19 to the Engine Control Module - J623- harness connector T91 / 79 for resistance. CHECK: For Passat, the Instrument Cluster Control Module -J285- harness connector terminal 29 to the Engine Control Module - J623- harness connector T91 / 80 for resistance. CHECK: For Passat, the Instrument Cluster Control Module -J285- harness connector terminal 28 to the Engine Control Module - J623- harness connector T91 / 79 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	-- YES: REPLACE: Engine Control Module -J623-. Refer to appropriate repair information. 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 4
4	Final Procedure Perform a road test to verify repair. -- Does the original DTC return?	-- YES: CHECK: For Jetta / Beetle, the Vehicle Electrical System Control Module -J519- harness connector for any damaged, pushed-out pins. For Passat, the Instrument Cluster Control Module -J285- harness connector for any damaged, pushed-out pins. REPAIR: As necessary. 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. If all electrical connections are OK: REPLACE: For Jetta / Beetle, the Vehicle Electrical System Control Module -J519-. For Passat, the Instrument Cluster Control Module -J285-. Refer to appropriate repair information. 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.