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Home >> Audi >> 2013 >> A5 Premium Plus, Eng CD CPMA >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Generic Scan Tool [CPMA, CPMB] (Diagnostic Procedures) (Cabriolet) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Can-Bus Terminal Resistance, Powertrain, Checking >> Test Procedure

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: -- NO:
  • GATHER more information from customer about the complaint.
  • IGNITION: OFF.
  • The Engine 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-. Refer to the appropriate service information.
  • CHECK: Transmission Control Module -J217- harness connector 6 to 5 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 CAN-BUS TERMINAL RESISTANCE, POWERTRAIN, CHECKING - 4 .
-- NO:
  • REMOVE: Engine Control Module - J623-. Refer to the appropriate service information.
  • CHECK: CAN bus circuit between the Transmission Control Module -J217- harness connector 6 and the Engine Control Module -J623- harness connector T94 / 67 for resistance.
  • CHECK: CAN bus circuit between the Transmission Control Module -J217- harness connector 5 and the Engine Control Module -J623- harness connector T94 / 68 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?
-- YES: -- 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 CAN-BUS TERMINAL RESISTANCE, POWERTRAIN, CHECKING - 4 .
Refer To The Final Procedure Below;