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	REMOVE: Transmission Control Module -J217-. Refer to appropriate service information. DISCONNECT: Transmission Control Module -J217- harness connector. CHECK: Harness connector for damage, corrosion, loose, or broken terminals. REPAIR: As necessary. -- Do any DTC's return:	YES: GO TO: Step 3 NO: GO TO: Step 5
3	The Engine Control Module -J623- must remain connected for the following step. The central terminal resistor is located in the Engine Control Module -J623-. CHECK: Transmission Control Module -J217- harness connector T52 / 34 to 46 for resistance. Specified value: 60 to 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 5 NO: GO TO: Step 4
4	REMOVE: Engine Control Module - J623-. Refer to appropriate service information. CHECK: CAN bus circuit between the Transmission Control Module -J217- harness connector T52 / 34 and the Engine Control Module -J623- harness connector T94 / 67 for resistance. CHECK: CAN bus circuit between the Transmission Control Module -J217- harness connector T52 / 46 and the Engine Control Module -J623- harness connector T94 / 68 for resistance. SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω). -- Were Values obtained?	YES: REPLACE: Engine Control Module -J623-. Refer to appropriate service information. GO TO: Step 5 NO: 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 5
5	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.