ponents:
♦ Accelerator Pedal Position Sensor - G79-
♦ Accelerator Pedal Position Sensor 2 - G185-
The Accelerator Pedal Module - GX2- components cannot be

serviced separately, and must be serviced as a unit.
Special tools and workshop equipment required
♦ Multimeter.
♦ 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 Manual Transmission, ensure Shifter Lever po‐

sition 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

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3. Diagnosis and Testing

457

Test Procedure

Step

Procedure

Result / Action to Take

• PERFORM: Preliminary Check to verify the

customers concern. Refer to

⇒ “3.1 Preliminary Check ”, page 18

– Was Complaint verified?

– YES:

♦ GO TO: Step 2

⇒ page 458

– NO:

♦ GATHER more information from customer

about the complaint.

• 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 – 99%.
• IGNITION: OFF.
– Was Value obtained?

– YES:

♦ GO TO: Step 3

⇒ page 458

– NO:

♦ GO TO: Step 4

⇒ page 458

• Condition may be intermittent.
• 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 7

⇒ page 459

• DISCONNECT: Accelerator Pedal Module -

GX2- harness connector.

• IGNITION: ON.
• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminals 2 to 3 and 1 to 5 for

voltage.

• SPECIFIED VALUE: About 5.0 V.
• IGNITION: OFF.
– Were Values obtained?

– YES:

♦ GO TO: Step 5

⇒ page 458

– NO:

♦ GO TO: Step 6

⇒ page 459

• REMOVE: Engine Control Module - J623- .

Refer to appropriate repair manual.

• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminal 4 to the Engine Con‐

trol Module - J623- harness connector T91 / 52

for resistance.

• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminal 6 to the Engine Con‐

trol Module - J623- harness connector T91 / 69

for resistance.

• SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
– Were Values obtained?

– YES:

♦ GO TO: Step 7

⇒ page 459

– 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 7

⇒ page 459

GTI 2014 ➤

Generic Scan Tool - Edition 04.2015

458

Rep. Gr. ST - Generic Scan Tool

Step

Procedure

Result / Action to Take

• REMOVE: Engine Control Module - J623- .

Refer to appropriate repair manual.

• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminal 1 to the Engine Con‐

trol Module - J623- harness connector T91 / 16

for resistance.

• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminal 2 to the Engine Con‐

trol Module - J623- harness connector T91 / 33

for resistance.

• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminal 3 to the Engine Con‐

trol Module - J623- harness connector T91 / 34

for resistance.

• CHECK: Accelerator Pedal Module - GX2- har‐

ness connector terminal 5 to the Engine Con‐

trol Module - J623- harness connector T91 / 51

for resistance.

• SPECIFIED VALUE: 0.5 Ω (± 0.3 Ω).
– Were Values obtained?

– YES:

♦ GO TO: Step 7

⇒ page 459

– 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 7

⇒ page 459

• 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

Memory”, page 26

♦ 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.

3.6.2

Cam Adjustment Actuators , Checking

♦ Includes:
♦ Cylinder 1 Exhaust Camshaft Adjuster A - N580-
♦ Cylinder 1 Exhaust Camshaft B - N581-

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3. Diagnosis and Testing

459

♦ Cylinder 2 Exhaust Camshaft Adjuster A - N588-
♦ Cylinder 2 Exhaust Camshaft B - N589-
♦ Cylinder 3 Exhaust Camshaft Adjuster A - N596-
♦ Cylinder 3 Exhaust Camshaft B - N597-
♦ Cylinder 4 Exhaust Camshaft Adjuster A - N604-
♦ Cylinder 4 Exhaust Camshaft B - N605-
General Description
The Cam Adjustment Actuators are electromagnetic solenoid-

type actuators. Two actuators are used per cylinder. One actuator

moves the cam element on the camshaft for large valve lift. The

other actuator resets the cam element for small valve lift. Each

actuator is attached externally to the cylinder head cover by a bolt.

They are sealed with O rings. When the actuator is activated by

the Engine Control Module - J623- , a metal pin engages the dis‐

placement groove in the cam element, thereby moving the other

cam lobe into position.
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 Manual Transmission, ensure Shifter Lever po‐

sition 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