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Home >> Audi >> 2014 >> S7 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> 4.0L - Generic Scan Tool - Engine Code(S): CEUC & CRDB (Transmission DTC Table & Diagnostic Procedures) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Throttle Valve Control Module -J338-, CHECKING >> Test Procedure
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Test Procedure

Step Procedure Result / Action to Take
1
  • PERFORM: Preliminary Check to verify the customers concern. Refer to PRELIMINARY CHECK
-- Was concern verified?		 -- YES:
  • GO TO: Step 2
-- NO:
  • Gather more Information from customer about the concern.
2
  • CONNECT: Scan Tool.
  • IGNITION: ON
  • CHECK: throttle valve position closed:
  • SPECIFIED VALUE: 3 - 25%
  • DEPRESS: Accelerator pedal slowly to WOT while observing the percentage display. The percentage display must increase uniformly
  • CHECK: throttle valve position at WOT:
  • SPECIFIED VALUE: 84 - 97%
  • IGNITION: OFF
-- Was Value obtained?		 -- YES:
  • Condition may be intermittent
  • PERFORM: Visual Inspection of wiring and component
  • CHECK: wiring for open, high resistance, short or connector for damage, corrosion, loose or broken terminals
  • REPAIR: faulty wiring or connector
  • GO TO: Step 6
-- NO:
  • GO TO: Step 3
3
  • REMOVE: Throttle Valve Control Module -J338 - far enough so that the connector terminals are accessible.
  • DISCONNECT: Throttle Valve Control Module -J338 - connector.
  • IGNITION: ON
  • CHECK: Throttle Valve Control Module -J338 - connector terminals 2 to 6 for voltage
  • SPECIFIED VALUE: About 5.0 V
  • IGNITION: OFF
-- Was value obtained?		 -- YES:
  • GO TO: Step 4
-- NO:
  • GO TO: Step 5
4
  • REMOVE: Engine Control Module - J623-. Refer to appropriate repair information.
  • CHECK: Throttle Valve Control Module -J338 - connector terminal 1 to the Engine Control Module - J623- connector terminals T105 / 60.
  • CHECK: Throttle Valve Control Module -J338 - connector terminal 4 to the Engine Control Module - J623- connector terminals T105 / 61.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained?		 -- YES:
  • REPLACE: Throttle Valve Control Module -J338 -. Refer to appropriate repair information.
  • GO TO: Step 6
-- NO:
  • CHECK: wiring for open, high resistance, short or connector for damage, corrosion, loose or broken terminals
  • REPAIR: faulty wiring or connector
  • GO TO: Step 6
5
  • REMOVE: Engine Control Module - J623-. Refer to appropriate repair information.
  • CHECK: Throttle Valve Control Module -J338 - connector terminal 2 to the Engine Control Module - J623- connector T105 / 42.
  • CHECK: Throttle Valve Control Module -J338 - connector terminal 3 to the Engine Control Module - J623- connector T105 / 88.
  • CHECK: Throttle Valve Control Module -J338 - connector terminal 5 to the Engine Control Module - J623- connector T105 / 66.
  • CHECK: Throttle Valve Control Module -J338 - connector terminal 6 to the Engine Control Module - J623- connector T105 / 102.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained?		 -- YES:
  • REPLACE Engine Control Module -J623- Refer to appropriate repair information
  • GO TO: Step 6
-- NO:
  • CHECK: wiring for open, high resistance, short or 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 CODES
  • Return vehicle to Customer
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