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Home >> Audi >> 2012 >> A8 Base >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> 4.2L - Generic Scan Tool - Engine Code: CDRA (2 Of 2) >> St Generic Scan Tool >> Diagnosis And Testing >> Diagnostic Procedures >> Intake Manifold Runner Position Sensor 2 -G512-, Checking
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Intake Manifold Runner Position Sensor 2 -G512-, Checking

Function

The Engine Control Module -J623- uses the Intake Manifold Runner Position Sensor 2 -G512- signal to calculate a correction value for the charge air pressure. Evaluation of the signal gives consideration to the influence of temperature on the density of the charge air.

Special Tools And Workshop Equipment Required 

Test requirements

Test Procedure

Step Procedure Result / Action to Take
1
  • PERFORM: Preliminary Check to verify the customers complaint. Refer to PRELIMINARY CHECK
-- Was complaint verified?
  • NO:
  • Gather more Information from customer about the complaint
2
  • DISCONNECT: Intake Manifold Runner Position Sensor 2 -G512- electrical connector
  • IGNITION: ON
  • CHECK: Intake Manifold Runner Position Sensor 2 -G512- wiring connector pins 1 to 3 for voltage
  • SPECIFIED VALUE: About 5.0 V
  • IGNITION: OFF
-- Was value obtained?
3
  • REMOVE: Engine Control Module - J623-. Refer to appropriate service information.
  • CHECK: Intake Manifold Runner Position Sensor 2 -G512- electrical connector terminal 2 to the Engine Control Module - J623- electrical connector T105 / 58.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained?
4
  • REMOVE: Engine Control Module - J623-. Refer to appropriate service information.
  • CHECK: Intake Manifold Runner Position Sensor 2 -G512- electrical connector terminals 1 to the Engine Control Module - J623- electrical connector terminals T105 / 41.
  • CHECK: Intake Manifold Runner Position Sensor 2 -G512- electrical connector terminals 3 to the Engine Control Module - J623- electrical connector terminals T105 / 97.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω)
-- Was value obtained?
5
  • Final Procedure 
  • Perform a road test to verify repair.
  • Do any DTC's return:
  • NO:
  • Repair is complete, Generate readiness code. Refer to READINESS CODE .
  • Return vehicle to Customer