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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 >> Fuel Injectors, 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.
  • DISCONNECT: Harness connector from suspect Fuel Injector --.
  • CHECK: Suspect Fuel Injector -- component connector terminals 1 to 2 for resistance (refer to appropriate wiring diagram for correct terminal and connector locations).
  • SPECIFIED VALUE: 0.5 - 15 Ω (@ approx. 20° C).
-- Was Value obtained?
-- YES: -- NO:
  • REMOVE: Engine Control Module - J623-. Refer to the appropriate service information.
  • CHECK: Suspect Fuel Injector -- harness connector terminal 1 to the Engine Control Module - J623- harness connector T60 / xx for resistance (refer to appropriate wiring diagram for correct terminal and connector locations).
  • CHECK: Suspect Fuel Injector -- harness connector terminal 2 to the Engine Control Module - J623- harness connector T60 / xx for resistance (refer to appropriate wiring diagram for correct terminal and connector locations).
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?
-- YES:
  • TIP: The Fuel Injector -- may fail under loaded operation; please swap a known good Fuel Injector -- prior to continuing to the next step.
  • GO TO: Step 4 FUEL INJECTORS, CHECKING - 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 FUEL INJECTORS, CHECKING - 4 .
Refer To The Final Procedure Below;