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Home >> Audi >> 2014 >> A6 Quattro TDI Prestige >> Repair and Diagnosis >> Engine Performance >> System >> 3.0L - Generic Scan Tool - Engine Code: CPNB (2 Of 2) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Turbocharger Control Module 1 -J724-, 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:
  • GO TO: Step 2
-- NO:
  • Gather more Information from customer about the complaint.
2
  • IGNITION: OFF
  • DISCONNECT: Turbocharger Control Module 1 -J724- harness connector
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 1 and 2 to ground for voltage.
  • SPECIFIED VALUE: Battery Voltage
-- Was value obtained?
-- YES:
  • GO TO: Step 3
-- NO:
  • GO TO: Step 5
3
  • REMOVE: Engine Control Module - J623-. Refer to appropriate service information.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 5 to ground for voltage.
  • SPECIFIED VALUE: 5 [V] (+/- 0.4 V)
-- Was value obtained?
-- YES:
  • GO TO: Step 4
-- NO:
  • GO TO: Step 5
4
  • REMOVE: Engine Control Module - J623-. Refer to appropriate service information.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 3 to ground for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained?
-- YES:
  • GO TO: Step 5
-- NO:
  • REPLACE: Engine Control Module - J623-. Refer to appropriate repair information.
  • GO TO: Step 6
5
  • REMOVE: Engine Control Module - J623-. Refer to appropriate service information.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 1 to the Engine Control Module - J623- harness connector terminals T91 / 40 for resistance.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 2 to the Engine Control Module - J623- harness connector terminals T91 / 23 for resistance.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 3 to the Engine Control Module - J623- harness connector terminals T105 / 58 for resistance.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 4 to the Engine Control Module - J623- harness connector terminals T105 / 78 for resistance.
  • CHECK: Turbocharger Control Module 1 -J724- harness connector terminals 5 to the Engine Control Module - J623- harness connector terminals T105 / 57 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained?
-- YES:
  • REPLACE: Turbocharger Control Module 1 -J724-. Refer to appropriate repair information.
  • GO TO: Step 6
-- NO:
  • CHECK: wiring for open, high resistance, short or electrical connector for damage, corrosion, loose or broken terminals
  • REPAIR: faulty wiring or connector
  • GO TO: Step 6
6
  • 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