Volkswagen Golf / Golf GTI / Golf Variant. Manual — part 199
♦ Scan Tool.
Test requirements
• Fuses OK.
• Battery voltage OK.
• Switch OFF all electrical and electronic accessories.
• Vehicles with Auto. Transmission, ensure Selector Lever po‐
sition is in “P”.
• Vehicles with Man. Transmission, ensure Shifter Lever posi‐
tion is in “N” with Parking Brake applied.
• Coolant Temperature: ≥ 80° C.
• Observe all safety precautions:
⇒ “1.1 Safety Precautions”, page 2
• View clean working conditions:
⇒ “1.2 Clean Working Conditions”, page 3
.
• For Hybrid vehicles refer to:
⇒ “1.3 High Voltage System General Warnings”, page 4
Test Procedure
Step
Procedure
Result / Action to Take
1
• PERFORM: Preliminary Check to verify the
customers concern. Refer to
⇒ “3.1 Preliminary Check ”, page 18
– Was Complaint verified?
– YES:
– NO:
♦ GATHER more information from customer
about the complaint.
2
• IGNITION: OFF.
• DISCONNECT: Charge Air Pressure Sensor -
G31- harness connector.
• IGNITION: ON.
• CHECK: Charge Air Pressure Sensor - G31-
harness connector terminals 1 to 3 for voltage.
• SPECIFIED VALUE: About 5.0 V.
• IGNITION: OFF.
– Was Value obtained?
– YES:
– NO:
3
• REMOVE: Engine Control Module - J623- .
Refer to appropriate repair manual.
• CHECK: Charge Air Pressure Sensor - G31-
harness connector terminal 2 to the Engine
Control Module - J623- harness connector
T91 / 54 for resistance.
• CHECK: Charge Air Pressure Sensor - G31-
harness connector terminal 4 to the Engine
Control Module - J623- harness connector
T91 / 55 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, corro‐
sion, loose or broken terminals.
♦ REPAIR: Faulty wiring or connector.
♦ GO TO: Step 5
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
469
Step
Procedure
Result / Action to Take
4
• REMOVE: Engine Control Module - J623- .
Refer to appropriate repair manual.
• CHECK: Charge Air Pressure Sensor - G31-
harness connector terminal 1 to the Engine
Control Module - J623- harness connector
T91 / 35 for resistance.
• CHECK: Charge Air Pressure Sensor - G31-
harness connector terminal 3 to the Engine
Control Module - J623- harness connector
T91 / 32 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, corro‐
sion, loose or broken terminals.
♦ REPAIR: Faulty wiring or connector.
♦ GO TO: Step 5
.
5
• Final Procedure
• Perform a road test to verify repair.
– Does the original DTC return?
– YES:
♦ CHECK: Engine Control Module - J623- har‐
ness connector for any damaged, pushed-out
pins.
♦ REPAIR: As necessary.
♦ Clear the DTC’s. Refer to
⇒ “3.3.4 Diagnostic Mode 04 - Erase DTC
.
♦ Repair is complete. Generate Readiness
Code. Refer to
⇒ “3.2 Readiness Codes”, page 19
.
♦ Return vehicle to Customer.
♦ If all electrical connections are OK:
♦ REPLACE: Engine Control Module - J623- .
Refer to appropriate repair manual.
♦ Repair is complete. Generate Readiness
Code. Refer to
⇒ “3.2 Readiness Codes”, page 19
.
♦ 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.
3.6.7
Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sen‐
sor - G581- , Checking
General Description
The Engine Control Module - J623- computes the nominal charge
pressure from the requested torque. If the actual charge pressure
deviates from the nominal charge pressure, the wastegate* is
opened further by the Charge Pressure Actuator - V465- (charge
pressure decreases) or closed further (charge pressure increa‐
ses). The rapid response of the Charge Pressure Actuator - V465-
ensures that the wastegate opens quickly in overrun mode,
thereby reducing the pumping effort of the turbocharger. The
wastegate is closed in the start position. The Charge Pressure
Actuator - V465- is activated by the PWM signal, and the Charge
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
470
Rep. Gr. ST - Generic Scan Tool
Pressure Actuator Position Sensor - G581- provides position
feedback.
Special tools and workshop equipment required
♦ Multimeter.
♦ Wiring Diagram.
♦ Scan Tool.
Test requirements
• Fuses OK.
• Battery voltage OK.
• Switch OFF all electrical and electronic accessories.
• Vehicles with Auto. Transmission, ensure Selector Lever po‐
sition is in “P”.
• Vehicles with Man. Transmission, ensure Shifter Lever posi‐
tion is in “N” with Parking Brake applied.
• Coolant Temperature: ≥ 80° C.
• Observe all safety precautions:
⇒ “1.1 Safety Precautions”, page 2
• View clean working conditions:
⇒ “1.2 Clean Working Conditions”, page 3
.
• For Hybrid vehicles refer to:
⇒ “1.3 High Voltage System General Warnings”, page 4
Test Procedure
Step
Procedure
Result / Action to Take
1
• PERFORM: Preliminary Check to verify the
customers concern. Refer to
⇒ “3.1 Preliminary Check ”, page 18
– Was Complaint verified?
– YES:
– NO:
♦ GATHER more information from customer
about the complaint.
2
• IGNITION: OFF.
• DISCONNECT: Charge Pressure Actuator -
V465- / Charge Pressure Actuator Position
Sensor - G581- harness connector.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- component connector terminals 2 to 6
for resistance.
• SPECIFIED VALUE: 2.4 – 4.6 Ω (@ approx.
20° C).
– Was Value obtained?
– YES:
– NO:
♦ REPLACE: Charge Pressure Actuator -
V465- / Charge Pressure Actuator Position
Sensor - G581- . Refer to appropriate repair
manual.
3
• IGNITION: ON.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- harness connector terminals 1 to 3 for
voltage.
• SPECIFIED VALUE: About 5.0 V.
• IGNITION: OFF.
– Was Value obtained?
– YES:
– NO:
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
3. Diagnosis and Testing
471
Step
Procedure
Result / Action to Take
4
• REMOVE: Engine Control Module - J623- .
Refer to appropriate repair manual.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- harness connector terminal 1 to the En‐
gine Control Module - J623- harness connector
T105 / 35 for resistance.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- harness connector terminal 3 to the En‐
gine Control Module - J623- harness connector
T105 / 33 for resistance.
• SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
– Were Values obtained?
– YES:
♦ GO TO: Step 6
.
– NO:
♦ PERFORM: Visual Inspection of wiring and
component.
♦ CHECK: Wiring for open, high resistance,
short or harness connector for damage, corro‐
sion, loose or broken terminals.
♦ REPAIR: Faulty wiring or connector.
♦ GO TO: Step 6
.
5
• REMOVE: Engine Control Module - J623- .
Refer to appropriate repair manual.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- harness connector terminal 2 to the En‐
gine Control Module - J623- harness connector
T105 / 88 for resistance.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- harness connector terminal 5 to the En‐
gine Control Module - J623- harness connector
T105 / 41 for resistance.
• CHECK: Charge Pressure Actuator - V465- /
Charge Pressure Actuator Position Sensor -
G581- harness connector terminal 6 to the En‐
gine Control Module - J623- harness connector
T105 / 89 for resistance.
• SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
– Were Values obtained?
– YES:
♦ GO TO: Step 6
.
– NO:
♦ PERFORM: Visual Inspection of wiring and
component.
♦ CHECK: Wiring for open, high resistance,
short or harness connector for damage, corro‐
sion, loose or broken terminals.
♦ REPAIR: Faulty wiring or connector.
♦ GO TO: Step 6
.
GTI 2014 ➤
Generic Scan Tool - Edition 04.2015
472
Rep. Gr. ST - Generic Scan Tool
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст