Test Procedure

Step	Procedure	Result / Action to Take
1	PERFORM: Preliminary Check to verify the customers complaint. Refer to: 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. The Engine/Motor Control Module -J623- must remain connected for the following step. The central terminal resistor is located in the Engine Control Module -J623-. REMOVE: Transmission Control Module -J217-. CHECK: Transmission Control Module -- harness connector T81 / 46 to T81 / 45 for resistance. SPECIFIED VALUE: 60 - 72 Ω (@ 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/Motor Control Module - J623-. CHECK: CAN bus circuit between the Transmission Control Module -- harness connector T81 / 46 and the Engine/Motor Control Module -J623- harness connector T91 / 80 for resistance. CHECK: CAN bus circuit between the Transmission Control Module -- harness connector T81 / 45 and the Engine/Motor Control Module -J623- harness connector T91 / 79 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	-- YES: REPLACE: Engine/Motor Control Module -J623-. 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: Transmission Control Module -- harness connector for any damaged, pushed out pins. REPAIR: As necessary. If all electrical connections are OK: REPLACE: Transmission Control Module --. 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.