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Home >> Volkswagen >> 2014 >> 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 >> Engine Speed Sensor - G28-, 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
  • CONNECT: Scan Tool.
  • START or CRANK: Engine.
  • CHECK: Engine rpm.
  • SPECIFIED VALUE: Cranking or Idle rpm.
  • IGNITION: OFF.
-- Was Value obtained?		 -- YES:
  • GO TO Step 3.
-- NO:
  • GO TO Step 4.
3
  • 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 7.
4
  • DISCONNECT: Engine Speed Sensor -G28- harness connector.
  • IGNITION: ON.
  • CHECK: Engine Speed Sensor -G28- harness connector terminals 1 to 3 for voltage.
  • SPECIFIED VALUE: About 5.0 V.
  • IGNITION: OFF.
-- Was Value obtained?		 -- YES:
  • GO TO Step 5.
-- NO:
  • GO TO Step 6.
5
  • REMOVE: Engine Control Module - J623-. Refer to appropriate repair information.
  • CHECK: Engine Speed Sensor -G28- harness connector terminal 2 to the Engine Control Module - J623- harness connector T60 / 36 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained?		 -- YES:
  • REMOVE: Engine Speed Sensor -G28-. Refer to appropriate repair information.
  • CHECK: Engine Speed Sensor -G28- wheel for proper seating, damage and/or run - out. Refer to appropriate repair information.
  • Sensor wheel OK.
  • REPLACE: Engine Speed Sensor -G28-. Refer to appropriate repair information.
  • GO TO: Step 7.
-- NO:
  • 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 7.
6
  • REMOVE: Engine Control Module - J623-. Refer to appropriate repair information.
  • CHECK: Engine Speed Sensor -G28- harness connector terminal 1 to the Engine Control Module - J623- harness connector T60 / 50 for resistance.
  • CHECK: Engine Speed Sensor -G28- harness connector terminal 3 to the Engine Control Module - J623- harness connector T60 / 51 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 7.
-- NO:
  • 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 7.
7
  • 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.
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