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C-028 Waste Gate Valve Circuit > < C-026 Barometer Sensor Circuit

Astra H

C-027 - Boost Pressure Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Interruption of Voltage Supply Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    B150 Sensor - Boost Pressure
  • Ignition ON
  • Measure voltage between the following terminals:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

4.8 ... 5.2 V
Voltage Measurement Current Value: V
Yes: No:
T002

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:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T003

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between the following terminals:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T004

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 4
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 22 (XC99)

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T005

Check: Mechanical Functionality
  • Check mechanical functionality of the following components and all attached parts:
    B150 Sensor - Boost Pressure
  • Check intake system/charge air hoses for leaks (secondary air, porosity and blockages)

Mechanical function check okay?
Yes: No:


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    B150 Sensor - Boost 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:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 4
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 22 (XC99)
E004 Result: Short to Ground
  • Short circuit to ground between:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 4
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 22 (XC99)
E005 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 22 (XC99)
    &
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 4
E006 Result: Interruption
  • Circuit interruption between:
    B150 Sensor - Boost Pressure
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 7 (XC99)





C-028 Waste Gate Valve Circuit > < C-026 Barometer Sensor Circuit