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Home >> Volkswagen >> 2015 >> Passat TDI SE, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> 3.6L - Generic Scan Tool - Engine Code: CDVB (Transmission DTC Tables & Diagnostic Procedures) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Can-Bus Terminal Resistance, Checking >> Test Procedure
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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: Data Bus On Board Diagnostic Interface -J533- harness connector.
  • The Engine Control Module -J623- must remain connected for the following step.
  • CHECK: Data Bus On Board Diagnostic Interface -J533- harness connector terminals 6 to 16 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 4.
-- NO:
  • GO TO Step 3.
3
  • REMOVE: Engine Control Module - J623-. Refer to appropriate repair information.
  • CHECK: Faulty Data Bus On Board Diagnostic Interface -J533- harness connector terminal 6 to the Engine Control Module - J623- harness connector T94 / 67 for resistance.
  • CHECK: Faulty Data Bus On Board Diagnostic Interface -J533- harness connector terminal 16 to 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 repair information.
  • GO TO Step 4.
-- NO:
  • CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
  • If no malfunction is found in the wiring:
  • REPLACE Data Bus On Board Diagnostic Interface -J533-. Refer to appropriate repair information.
  • GO TO Step 4.
4
  • Final Procedure
  • Perform a road test to verify repair.
  • Do any DTC's return:
-- YES: -- NO:
  • Repair is complete. Generate readiness code. Refer to READINESS CODE .
  • Return vehicle to Customer.