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Vauxhall Workshop Service and Repair Manuals

C-027 Boost Pressure Sensor Circuit > < C-025 Engine Oil Status

C-026 - Barometer Sensor Circuit

Test

Work Order Description

Nominal Value

T001

Check: Interruption of Voltage Supply Circuit

  • Ignition OFF
  • Disconnect wiring harness connector from:
    B26 Sensor - Atmospheric Pressure
  • Ignition ON
  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

4.8 ... 5.2 V

Voltage Measurement Current Value: V
Yes: No:
T002

Check: Short to Voltage/Interruption of Ground Circuit

  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 2

4.8 ... 5.2 V

Voltage Measurement Current Value: V
Yes: No:
T003

Check: Short to Voltage of Signal Circuit

  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
  • Ignition ON
  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

less than 0.3 V

Voltage Measurement Current Value: V
Yes: No:
T004

Check: Short to Ground of Signal Circuit

  • Ignition OFF
  • Measure resistance between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

greater than 500 kOhm

Resistance Measurement Current Value: kOhm
Yes: No:
T005

Check: Interruption of Signal Circuit

  • Measure resistance between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 60 (XC99)

less than 5 Ohm

Resistance Measurement Current Value: Ohm
Yes: No:
T006

Check: Mechanical Functionality

  • Check mechanical functionality of the following components and all attached parts:
    B26 Sensor - Atmospheric Pressure

Mechanical function check okay?

Yes: No:
T007

Check: Short to Voltage/Interruption of Ground Circuit

  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 2

greater than 5.2 V

Voltage Measurement Current Value: V
Yes: No:
T008

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Astra-H, Air Conditioning (not ECC)
Astra-H, Electronic Climate Control ECC
Astra-H, Automatic Climate Control SAC
Yes: No:
T009

Check: Component

  • Ignition OFF
  • Disconnect wiring harness connector from:
    B18 Sensor - Pressure, Air Conditioning
  • Ignition ON
  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

4.8 ... 5.2 V

Voltage Measurement Current Value: V
Yes: No:
T010

Check: Component

  • Ignition OFF
  • Disconnect wiring harness connector from:
    B150 Sensor - Boost Pressure
  • Ignition ON
  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground
  • Disconnect each of the following components/control units consecutively from the wiring harness and repeat the measurement each time:
    B22 Sensor - Pedal Position
    B28 Sensor - Camshaft
    B30 Impulse Sensor - Crankshaft
    B69 Air Mass Meter

4.8 ... 5.2 V

Voltage Measurement Current Value: V
Yes: No:
T011

Check: Component

  • Ignition OFF
  • Disconnect wiring harness connector from:
    B150 Sensor - Boost Pressure
  • Ignition ON
  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground
  • Disconnect each of the following components/control units consecutively from the wiring harness and repeat the measurement each time:
    B22 Sensor - Pedal Position
    B28 Sensor - Camshaft
    B30 Impulse Sensor - Crankshaft
    B69 Air Mass Meter

greater than 5.2 V

Voltage Measurement Current Value: V
Yes: No:
T012

Check: Short to Voltage of Voltage Supply Circuit

  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
  • Ignition ON
  • Measure voltage between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

less than 0.3 V

Voltage Measurement Current Value: V
Yes: No:
T013

Check: Short to Voltage of Voltage Supply Circuit

  • Measure voltage between the following terminals:
    B28 Sensor - Camshaft
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

less than 0.3 V

Voltage Measurement Current Value: V
Yes: No:
T014

Check: Short to Voltage of Voltage Supply Circuit

  • Measure voltage between the following terminals:
    B22 Sensor - Pedal Position
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

less than 0.3 V

Voltage Measurement Current Value: V
Yes: No:
T015

Check: Short to Voltage of Voltage Supply Circuit

  • Measure voltage between the following terminals:
    B69 Air Mass Meter
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

less than 0.3 V

Voltage Measurement Current Value: V
Yes: No:
T016

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Astra-H, Air Conditioning (not ECC)
Astra-H, Electronic Climate Control ECC
Astra-H, Automatic Climate Control SAC
Yes: No:
T017

Check: Short to Voltage of Voltage Supply Circuit

  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 53 (XC98)
    &
    Ground

less than 0.3 V

Voltage Measurement Current Value: V
Yes: No:
T018

Check: Short to Ground of Voltage Supply Circuit

  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
  • Measure resistance between the following terminals:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

greater than 500 kOhm

Resistance Measurement Current Value: kOhm
Yes: No:
T019

Check: Short to Ground of Voltage Supply Circuit

  • Measure resistance between the following terminals:
    B28 Sensor - Camshaft
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

greater than 500 kOhm

Resistance Measurement Current Value: kOhm
Yes: No:
T020

Check: Short to Ground of Voltage Supply Circuit

  • Measure resistance between the following terminals:
    B69 Air Mass Meter
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

greater than 500 kOhm

Resistance Measurement Current Value: kOhm
Yes: No:
T021

Check: Short to Ground of Voltage Supply Circuit

  • Measure resistance between the following terminals:
    B22 Sensor - Pedal Position
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

greater than 500 kOhm

Resistance Measurement Current Value: kOhm
Yes: No:
T022

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Astra-H, Air Conditioning (not ECC)
Astra-H, Electronic Climate Control ECC
Astra-H, Automatic Climate Control SAC
Yes: No:
T023

Check: Short to Ground of Voltage Supply Circuit

  • Measure resistance between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 53 (XC98)
    &
    Ground

greater than 500 kOhm

Resistance Measurement Current Value: kOhm
Yes: No:


Result

Cause Of Fault

E001 Result: Defective Component
  • Defective component:
    B26 Sensor - Atmospheric Pressure
    or
    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.

Note:

The replacement of the components must be done in the listed order.

The system must be checked for proper operation after every replacement.

E002 Result: Mechanical Fault
  • Repair or replace defective component
E003 Result: Interruption
  • Circuit interruption between:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 60 (XC99)
E004 Result: Short to Ground
  • Short circuit to ground between:
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 60 (XC99)
E005 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 60 (XC99)
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 3
E006 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 10 (XC99)
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 2

or

  • 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.

E007 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 10 (XC99)
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 2

or

  • 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.

E008 Result: Defective Component
  • Defective component:
    B18 Sensor - Pressure, Air Conditioning
E009 Result: Defective Component
  • If the nominal value is reached during one of the measurements, the component/control unit that has been disconnected immediately before that measurement is defective.
E010 Result: Defective Component
  • 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.

E011 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 53 (XC98)
    &
    B18 Sensor - Pressure, Air Conditioning
    Wiring harness connector (wiring harness side) terminal 2

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.

E012 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 24 (XC99)
    &
    B69 Air Mass Meter
    Wiring harness connector (wiring harness side) terminal 4
E013 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 4 (XC98)
    &
    B22 Sensor - Pedal Position
    Wiring harness connector (wiring harness side) terminal 1

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.

E014 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 3 (XC99)
    &
    B28 Sensor - Camshaft
    Wiring harness connector (wiring harness side) terminal 3
    &
    B30 Impulse Sensor - Crankshaft
    Wiring harness connector (wiring harness side) terminal 3
E015 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 7 (XC99)
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 3
E016 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 3 (XC99)
    &
    B28 Sensor - Camshaft
    Wiring harness connector (wiring harness side) terminal 3

or

  • 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.

E017 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 53 (XC98)
    &
    B18 Sensor - Pressure, Air Conditioning
    Wiring harness connector (wiring harness side) terminal 2

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.

E018 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 4 (XC98)
    &
    B22 Sensor - Pedal Position
    Wiring harness connector (wiring harness side) terminal 1

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.

E019 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 24 (XC99)
    &
    B69 Air Mass Meter
    Wiring harness connector (wiring harness side) terminal 4
E020 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 3 (XC99)
    &
    B28 Sensor - Camshaft
    Wiring harness connector (wiring harness side) terminal 3
    &
    B30 Impulse Sensor - Crankshaft
    Wiring harness connector (wiring harness side) terminal 3
E021 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 7 (XC99)
    &
    B26 Sensor - Atmospheric Pressure
    Wiring harness connector (wiring harness side) terminal 1
    &
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 3





C-027 Boost Pressure Sensor Circuit > < C-025 Engine Oil Status