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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: -- NO:
  • GATHER more information from customer about the complaint.
2 
  • CONNECT: Scan tool.
  • START: Engine and let Idle.
  • CHECK: The air flow quantity of the Mass Air Flow Sensor -G70-.
  • SPECIFIED VALUE: About 2 to 5 g/s.
  • 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 harness connector for damage, corrosion, loose or broken terminals.
  • REPAIR: Faulty wiring or connector.
  • GO TO: Step 5 Mass Airflow Sensor -G70-, CHECKING - 5 .
-- NO:
3 
  • DISCONNECT: Mass Airflow Sensor -G70- harness connector.
  • IGNITION: ON.
  • CHECK: Mass Airflow Sensor -G70- harness connector terminal 1 to ground for voltage.
  • SPECIFIED VALUE: Battery voltage.
  • IGNITION: OFF.
-- Was Value obtained?		 -- YES: -- 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 5 Mass Airflow Sensor -G70-, CHECKING - 5 .
4 
  • REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
  • CHECK: Mass Airflow Sensor -G70- harness connector terminal 2 to the Engine Control Module - J623- harness connector T94 / 20 for resistance.
  • CHECK: Mass Airflow Sensor -G70- harness connector terminal 3 to the Engine Control Module - J623- harness connector T94 / 22 for resistance.
  • CHECK: Mass Airflow Sensor -G70- harness connector terminal 4 to the Engine Control Module - J623- harness connector T94 / 42 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained?		 -- YES: -- 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 5 Mass Airflow Sensor -G70-, CHECKING - 5 .
5 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • DISCONNECT: Nox Sensor Control Module -J583- harness connector.
  • IGNITION: ON.
  • CHECK: Nox Sensor Control Module -J583- harness connector terminals 1 to 2 for voltage.
  • SPECIFIED VALUE: Battery voltage.
  • IGNITION: OFF.
-- Were Values obtained?		 -- YES: -- 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 Nox Sensor Control Module - J583 -, CHECKING - 4 .
3 
  • REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
  • CHECK: Nox Sensor Control Module -J583- harness connector terminal 3 to the Engine Control Module - J623- harness connector T94 / 35 for resistance.
  • CHECK: Nox Sensor Control Module -J583- harness connector terminal 4 to the Engine Control Module - J623- harness connector T94 / 36 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES: -- 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 Nox Sensor Control Module - J583 -, CHECKING - 4 .
4 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • DISCONNECT: Outside Air Temperature Sensor -G17- harness connector.
  • CHECK: Outside Air Temperature Sensor -G17- component connector terminals 1 to 2 for resistance.
  • SPECIFIED VALUE: 1, 300 Ω (+/- 500 Ω @ approx. 20° C).
-- Was Value obtained?		 -- YES: -- NO:
3 
  • REMOVE: Vehicle Electrical System Control Module -J519-. Refer to appropriate Service Information.
  • CHECK: Outside Air Temperature Sensor -G17- harness connector terminal 1 to the Vehicle Electrical System Control Module -J519- harness connector terminal 19 for resistance.
  • CHECK: Outside Air Temperature Sensor -G17- harness connector terminal 2 to the Vehicle Electrical System Control Module -J519- harness connector terminal 27 (20 = Jetta Only) for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES: -- NO:
4 
  • Final Procedure 
  • Perform a road test to verify repair.
-- Does the original DTC return?		 -- YES:
  • CHECK: Vehicle Electrical System Control Module -J519- harness connector for any damaged, pushed-out pins.
  • REPAIR: As necessary.
  • 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.
  • If all electrical connections are OK:
  • REPLACE Vehicle Electrical System Control Module -J519-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • DISCONNECT: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- component connector terminals 3 to 4 for resistance.
  • SPECIFIED VALUE: 2 - 4 Ω (@ 25° C).
-- Was Value obtained?		 -- YES: -- NO:
3 
  • IGNITION: ON.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector terminal 4 to ground for voltage.
  • IGNITION: OFF.
  • SPECIFIED VALUE: Battery voltage.
-- Was Value obtained?		 -- YES: -- NO:
4 
  • RECONNECT: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector.
  • CONNECT: Scan Tool.
  • START: Engine and let Idle.
  • Perform the function test located in diagnostic mode 06. Refer to appropriate Diagnostic Mode 06 - Read Test Results for Specific Diagnostic Functions, DIAGNOSTIC MODES 01 - 0A .
  • SPECIFIED VALUE: Mode 6 Pass.
  • IGNITION: OFF.
-- Were Values obtained?		 -- YES: -- NO:
5 
  • FAULT: Is 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.
6 
  • REMOVE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector terminal 1 to the Engine Control Module -J623- harness connector T94 / 38 for resistance.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector terminal 2 to the Engine Control Module -J623- harness connector T94 / 17 for resistance.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector terminal 3 to the Engine Control Module -J623- harness connector T94 / 73 for resistance.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector terminal 5 to the Engine Control Module -J623- harness connector T94 / 16 for resistance.
  • CHECK: Oxygen Sensor 1 Before Catalytic Converter -GX10- harness connector terminal 6 to the Engine Control Module -J623- harness connector T94 / 39 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES: -- NO:
7 
  • 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.
  • Clear the DTC's. Refer to
  • Repair is complete. Generate Readiness Code. Refer to READINESS CODE .
  • Return vehicle to Customer.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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 
  • DISCONNECT: Radiator Shutter Motor - V544- harness connector.
  • IGNITION: ON.
  • CHECK: Radiator Shutter Motor - V544- harness connector terminals 1 to 4 for voltage.
  • IGNITION: OFF.
  • SPECIFIED VALUE: Battery voltage.
-- Was Value obtained?		 -- YES: -- NO:
  • CHECK: Wiring for open, high resistance, short or harness connector for damage, corrosion, loose or broken terminals.
  • REPAIR: Faulty wiring or connector.
  • REPLACE: Any open fuses.
  • GO TO: Step 4 Radiator Shutter Motor -V544-, CHECKING - 4 .
3 
  • REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
  • CHECK: Radiator Shutter Motor - V544- harness connector terminal 3 to the Engine Control Module - J623- harness connector T94 / 70 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained?		 -- YES: -- 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 4 Radiator Shutter Motor -V544-, CHECKING - 4 .
4 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • REMOVE: Reducing Agent Metering System Relay -J963- Refer to appropriate Service Information.
  • DISCONNECT: Reducing Agent Metering System Delivery Unit -GX19- harness connector.
  • CONNECT: Jumper wire, Reducing Agent Metering System Relay -J963- socket terminals 3 and 5.
  • IGNITION: ON.
  • CHECK: Reducing Agent Metering System Delivery Unit -GX19- wiring connector terminals T4 / 1 and T4 / 4 and T5 / 3 to ground for voltage.
  • IGNITION: OFF.
  • SPECIFIED VALUE: Battery voltage.
-- Were Values obtained?		 -- YES: -- NO:
3 
  • REMOVE: Jumper wire, Reducing Agent Metering System Relay -J963- socket terminals 3 and 5.
  • REMOVE: Engine Control Module -J623- harness connector. Refer to appropriate service information.
  • CHECK: Reducing Agent Metering System Delivery Unit -GX19- harness connector terminal T4 / 3 to the Engine Control Module -J623- harness connector terminal T94 / 50 for resistance.
  • CHECK: Reducing Agent Metering System Delivery Unit -GX19- harness connector terminal T4 / 2 to the Engine Control Module -J623- harnessl connector terminal T94 / 28 for resistance.
  • CHECK: Reducing Agent Metering System Delivery Unit -GX19- harness connector terminal T5 / 5 to the Engine Control Module -J623- harness connector terminal T94 / 18 for resistance.
  • CHECK: Reducing Agent Metering System Delivery Unit -GX19- harness connector terminal T5 / 1 to ground for resistance.
  • CHECK: Reducing Agent Metering System Delivery Unit -GX19- harness connector terminal T5 / 4 to ground for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was value obtained?		 -- YES: -- NO:
4 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • DISCONNECT:Reducing Agent Heater Control Module -J891- harness connectors.
  • IGNITION: ON.
  • CHECK: Reducing Agent Heater Control Module -J891- harness connector terminal 3 and 5 to ground for voltage.
  • SPECIFIED VALUE: Battery voltage.
  • IGNITION: OFF.
-- Was Value obtained?		 -- YES: -- NO:
3 
  • CHECK: Reducing Agent Tank Heater (Heating Circuit 1) -Z102- /Reducing Agent Line Heater (Heating Circuit 2) -Z104- harness connector terminal to the Reducing Agent Heater Control Module -J891- harness connector for resistance. Refer to appropriate wiring diagram for correct pins
  • CHECK: Reducing Agent Tank Heater (Heating Circuit 1) -Z102- /Reducing Agent Line Heater (Heating Circuit 2) -Z104- harness connector terminal 1 to ground for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES: -- NO:
4 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • DISCONNECT: Reducing Agent Heater Control Module -J891- harness connector.
  • IGNITION: ON.
  • CHECK: Reducing Agent Heater Control Module -J891- harness connector terminals 3 and 5 to ground for voltage.
  • IGNITION: OFF.
  • SPECIFIED VALUE: Battery voltage.
-- Were Values obtained?		 -- YES: -- NO:
3 
  • REMOVE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • CHECK: Reducing Agent Heater Control Module -J891- harness connector 1 to the Engine Control Module -J623- harness connector T94 / 41 for resistance.
  • CHECK: Reducing Agent Heater Control Module -J891- harness connector 2 to the Engine Control Module -J623- harness connector T94 / 31 for resistance.
  • CHECK: Reducing Agent Metering System Control Module -J880- harness connector 3 to the Engine Control Module -J623- harness connector T94 / 40 for resistance.
  • CHECK: Reducing Agent Metering System Control Module -J880- harness connector 4 to the Engine Control Module -J623- harness connector T94 / 9 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES: -- NO:
4 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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 
  • 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 harness connector for damage, corrosion, loose or broken terminals.
  • REPAIR: Faulty wiring or connector.
  • GO TO: Step 6 Throttle Valve Control Module - GX3-, CHECKING - .
-- NO:
3
  • REMOVE: Throttle Valve Control Module - GX3- far enough so that the harness connector terminals are accessible.
  • DISCONNECT: Throttle Valve Control Module - GX3- harness connector.
  • IGNITION: ON.
  • CHECK: Throttle Valve Control Module - GX3- harness connector terminals 1 to 3 for voltage.
  • SPECIFIED VALUE: About 5.0 V.
  • IGNITION: OFF.
-- Were Values obtained?		 -- YES: -- NO:
4
  • REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
  • CHECK: Throttle Valve Control Module - GX3- harness connector terminal 1 to the Engine Control Module - J623- harness connector T60 / 58 for resistance.
  • CHECK: Throttle Valve Control Module - GX3- harness connector terminal 3 to the Engine Control Module - J623- harness connector T60 / 56 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES:
  • GO TO: Step 5.
-- 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 6 Throttle Valve Control Module - GX3-, CHECKING - .
5
  • REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
  • CHECK: Throttle Valve Control Module - GX3- harness connector terminal 2 to the Engine Control Module - J623- harness connector T60 / 11 for resistance.
  • CHECK: Throttle Valve Control Module - GX3- harness connector terminal 4 to the Engine Control Module - J623- harness connector T60 / 34 for resistance.
  • CHECK: Throttle Valve Control Module - GX3- harness connector terminal 5 to the Engine Control Module - J623- harness connector T60 / 49 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Were Values obtained?		 -- YES: -- 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 6 Throttle Valve Control Module - GX3-, CHECKING - .
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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.


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: OFF.
  • DISCONNECT: Wastegate Bypass Regulator Valve -N75- harness connector.
  • CHECK: Wastegate Bypass Regulator Valve -N75- component connector terminals 1 to 2 for resistance.
  • SPECIFIED VALUE: 13 - 17 Ω (@ approx. 20° C).
-- Was Value obtained?		 -- YES: -- NO:
3 
  • IGNITION: ON.
  • CHECK: Wastegate Bypass Regulator Valve -N75- harness connector terminal 1 to ground for voltage.
  • IGNITION: OFF.
  • SPECIFIED VALUE: Battery voltage.
-- Was Value obtained?		 -- YES: -- 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 5 Wastegate Bypass Regulator Valve -N75-, CHECKING - 5 .
4 
  • REMOVE: Engine Control Module - J623-. Refer to appropriate Service Information.
  • CHECK: Wastegate Bypass Regulator Valve -N75- harness connector terminal 2 to the Engine Control Module - J623- harness connector T60 / 52 for resistance.
  • SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
-- Was Value obtained?		 -- YES: -- 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 5 Wastegate Bypass Regulator Valve -N75-, CHECKING - 5 .
5 
  • 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.
  • 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.
  • If all electrical connections are OK:
  • REPLACE: Engine Control Module -J623-. Refer to appropriate Service Information.
  • 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.

DFD 04.13.2016

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