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HOMESERVICE MANUALSVOLKSWAGEN2016PASSAT R-LINE, 1.8L ENG VIN TREPAIR AND DIAGNOSISTRANSMISSIONTRANSMISSION CONTROL SYSTEMSENGINE & TRANSMISSION SYSTEM (DIAGNOSTICS - CPRA, CPKA)ST GENERIC SCAN TOOLDIAGNOSIS AND TESTINGDIAGNOSTIC PROCEDURESFUEL DELIVERY UNIT -GX1- / FUEL PUMP CONTROL MODULE -J538-, TESTINGTEST PROCEDURE
2016 Volkswagen Passat R-Line, 1.8L Eng VIN T

Test Procedure

2016 Volkswagen Passat R-Line, 1.8L Eng VIN TSECTION Test Procedure
NOTE:

When the door is opened or the Ignition is turned to the ON position the fuel pump is activated for 2 seconds to build up the pressure in the fuel system.

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.
2 
  • IGNITION: ON.
  • LISTEN: Transfer Fuel Pump -G6- should be heard running for 2 sec.
  • SPECIFIED VALUE: Transfer Fuel Pump ON for 2 s.
  • IGNITION: OFF.
-- Was Value obtained?		 -- YES: -- NO:
3 
  • DISCONNECT: Fuel Pump Control Module -J538-.
  • IGNITION: ON.
  • CHECK: Fuel Pump Control Module -J538- harness connector terminals 1 to 6 for voltage.
  • SPECIFIED VALUE: Battery voltage.
  • IGNITION: OFF.
-- Was Value obtained?		 -- YES: -- NO:
4 
  • RECONNECT: Fuel Pump Control Module -J538-.
  • DISCONNECT: Transfer Fuel Pump -G6-.
  • CRANK: Engine.
  • CHECK: Transfer Fuel Pump -G6- harness connector terminals 1 to 5 for voltage while engine is cranking.
  • IGNITION: OFF
  • SPECIFIED VALUE: 7 - 11 V.
-- Was Value obtained?		 -- YES: -- NO:
5 
  • REMOVE: Engine Control Module -J623-. Refer to the appropriate service information.
  • CHECK: Fuel Pump Control Module -J538- harness connector terminal 2 to Engine Control Module -J623- harness connector T91 / 9 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained?		 -- YES: -- NO:
6 
  • Final Procedure 
  • Perform a road test to verify repair.
-- Does the original DTC return?		 -- YES:
  • CHECK: Engine Control Module -J623- harness connector for any damaged, pushed out pins.
  • REPAIR: As necessary.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-.
  • Clear the DTC's. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
  • Repair is complete. Generate Readiness Code. Refer to READINESS CODE .
  • Return vehicle to Customer.
-- NO:
  • Perform the diagnostic procedure for any DTC's.
  • If no DTC's return the repair is complete.
  • Return vehicle to customer.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.