Vauxhall Workshop Service and Repair Manuals

Test

Work Order Description

Nominal Value

Check: Interruption of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  Y145 Solenoid Valve - Swirl
  (Wiring Harness Connector XC27 )
• Ignition ON
• Measure voltage between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 2 (XC27)
  &
  Ground

greater than 11 V

Check: Short to Voltage/Interruption of Signal Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC11 )
• Ignition ON
• Measure voltage between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 1 (XC27)
  &
  Ground

less than 0.3 V

Check: Short to Ground of Signal Circuit

• Ignition OFF
• Measure resistance between:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 1 (XC27)
  &
  Ground

greater than 500 kOhm

Check: Interruption of Signal Circuit

• Measure resistance between:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 1 (XC27)
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 45 (XC11)

less than 5 Ohm

Check: Component

• Is the following component installed?
  Feedback Sensor - Variable Swirl
  (Wiring Harness Connector XC28 )

Check: Component

• Disconnect wiring harness connector from:
  Y145 Solenoid Valve - Swirl
  (Wiring Harness Connector XC28 )
• Measure resistance between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (component side) wiring colour BNWH (XC28)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (component side) wiring colour BN (XC28)

greater than 500 kOhm

Check: Component

• Disconnect vacuum hose from following component:
  Vacuum Actuator - Swirl Level Control Valve
• Connect vacuum pump MKM-667 (component side) to:
  Vacuum Actuator - Swirl Level Control Valve
• Use vacuum pump MKM-667 to create a vacuum in the range between -70 kPa ( -0.7 bar ) and -100 kPa ( -1 bar ).
• Measure resistance between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (component side) wiring colour BNWH (XC28)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (component side) wiring colour BN (XC28)

less than 5 Ohm

Check: Interruption of Signal Circuit

• Connect vacuum hose to:
  Vacuum Actuator - Swirl Level Control Valve
• Measure resistance between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BN (XC28)
  &
  Ground

less than 5 Ohm

Check: Short to Voltage of Signal Circuit

• Ignition ON
• Measure voltage between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BNWH (XC28)
  &
  Ground

Note:

During the model year 06 the terminal 35 (XC11) of the wiring harness connector of the component A84 is not used any more.

less than 0.3 V

Check: Short to Ground of Signal Circuit

• Ignition OFF
• Measure resistance between the following terminals:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BNWH (XC28)
  &
  Ground

Note:

During the model year 06 the terminal 35 (XC11) of the wiring harness connector of the component A84 is not used any more.

greater than 500 kOhm

Check: Interruption of Signal Circuit

• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 35 (XC11)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BNWH (XC28)

Note:

During the model year 06 the terminal 35 (XC11) of the wiring harness connector of the component A84 is not used any more.

less than 5 Ohm

Check: Pneumatic Components

• Disconnect vacuum hose from following component:
  Vacuum Actuator - Swirl Level Control Valve
• Connect vacuum pump MKM-667 (hose side) to:
  Vacuum Actuator - Swirl Level Control Valve
• Connect wiring harness connector to:
  A84 Control Unit - Engine
  (Wiring Harness Connector XC11 )
  &
  Y145 Solenoid Valve - Swirl
  (Wiring Harness Connector XC27 )
• Engine idling
• Select and enable diagnostic tester actuator test:
  Swirl Level Control Solenoid Valve Test
  Use soft key to activate the corresponding component

Indicates the vacuum pump a value between -70 kPa ( -0.7 bar ) and -100 kPa ( -1 bar )?

Check: Pneumatic Components

• Ignition OFF
• Disconnect vacuum hose from following component:
  Y142 Solenoid Valve - Boost Pressure Regulation
  (Input connection)
  Y145 Solenoid Valve - Swirl
  (Input connection)
• Connect vacuum pump MKM-667 (hose side) to:
  Y145 Solenoid Valve - Swirl
  (Input connection)
• Close the following vacuum connection tightly (hose side)
  Y142 Solenoid Valve - Boost Pressure Regulation
  (Input connection)
• Engine idling

Indicates the vacuum pump a value between -70 kPa ( -0.7 bar ) and -100 kPa ( -1 bar )?

Check: Interruption of Voltage Supply Circuit

• Ignition OFF
• Remove electrical component from socket:
  FE26 Fuse
• Ignition ON
• Measure voltage between the following terminals:
  FE26 Fuse
  Input contact
  &
  Ground

greater than 11 V

Result

Cause Of Fault

• Defective component:
  A84 Control Unit - Engine

Important:

Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.

• Defective component:
  Y145 Solenoid Valve - Swirl

or

• Pneumatic system leak between:
  Y145 Solenoid Valve - Swirl
  (Output connection)
  &
  Vacuum Actuator - Swirl Level Control Valve

Note:

Read and (if applicable) apply Field Remedy 1782

• Pneumatic system leakage/plugging between:
  Vacuum pump
  &
  Y142 Solenoid Valve - Boost Pressure Regulation
  &
  Y145 Solenoid Valve - Swirl

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 35 (XC11)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BNWH (XC28)

Note:

Wiring colours: BG=Beige, BK=Black, BN=Brown, BU=Blue, GN=Green, GY=Grey, OC=Ochre, OG=Orange, PK=Pink, PU=Purple, RD=Red, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark

During the model year 06 the terminal 35 (XC11) of the wiring harness connector of the component A84 is not used any more.

• Short circuit to ground between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 35 (XC11)

&

Note:

Wiring colours: BG=Beige, BK=Black, BN=Brown, BU=Blue, GN=Green, GY=Grey, OC=Ochre, OG=Orange, PK=Pink, PU=Purple, RD=Red, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark

During the model year 06 the terminal 35 (XC11) of the wiring harness connector of the component A84 is not used any more.

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 35 (XC11)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BNWH (XC28)

Note:

Wiring colours: BG=Beige, BK=Black, BN=Brown, BU=Blue, GN=Green, GY=Grey, OC=Ochre, OG=Orange, PK=Pink, PU=Purple, RD=Red, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark

During the model year 06 the terminal 35 (XC11) of the wiring harness connector of the component A84 is not used any more.

• Circuit interruption between:
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) wiring colour BN (XC28)
  &
  Ground

Note:

Wiring colours: BG=Beige, BK=Black, BN=Brown, BU=Blue, GN=Green, GY=Grey, OC=Ochre, OG=Orange, PK=Pink, PU=Purple, RD=Red, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark

• Defective component:
  Vacuum Actuator - Swirl Level Control Valve

Note:

Read and (if applicable) apply Field Remedy 1782

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 45 (XC11)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 1 (XC27)

• Short circuit to ground between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 45 (XC11)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 1 (XC27)

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 45 (XC11)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 1 (XC27)

• Circuit interruption between:
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 29 (XE3)
  &
  Y145 Solenoid Valve - Swirl
  Wiring harness connector (wiring harness side) terminal 2 (XC27)

or

• Defective component:
  X125 Underhood Electronic Module

Important:

Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.

• Defective component:
  X125 Underhood Electronic Module

Important:

Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.