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C-004 Front Left Body Acceleration Sensor Circuit > < C-002 Front Left Wheel Acceleration Sensor Circuit

Astra H

C-003 - Front Right Wheel Acceleration Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Interruption of Voltage Supply Circuit
  • Ignition OFF
  • Disconnect wiring harness connector:
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
  • Ignition ON
  • Measure voltage between the following terminals:
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 7
    &
    Ground

4.5 ... 5.5 V
Voltage Measurement Current Value: V
Yes: No:
T002

Check: Circuit Interruption of Ground Circuit
  • Measure voltage between the following terminals:
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 7
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 9

4.5 ... 5.5 V
Voltage Measurement Current Value: V
Yes: No:
T003

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A6 Control Unit - Semi Active Damping System
  • Ignition ON
  • Measure voltage between the following terminals:
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 8
    &
    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:
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 8
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T005

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    A6 Control Unit - Semi Active Damping System
    Wiring harness connector (wiring harness side) terminal 24
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 8

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


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    B36WR Sensor - Vertical Acceleration Wheel, Front Right
    or
    A6 Control Unit - Semi Active Damping System

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: Interruption
  • Circuit interruption between:
    A6 Control Unit - Semi Active Damping System
    Wiring harness connector (wiring harness side) terminal 24
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 8

or

  • Defective component:
    A6 Control Unit - Semi Active Damping System
E003 Result: Short to Ground
  • Short circuit to ground between:
    A6 Control Unit - Semi Active Damping System
    Wiring harness connector (wiring harness side) terminal 24
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 8
E004 Result: Short to Voltage
  • Short circuit to voltage between:
    A6 Control Unit - Semi Active Damping System
    Wiring harness connector (wiring harness side) terminal 24
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 8
E005 Result: Interruption
  • Circuit interruption between:
    A6 Control Unit - Semi Active Damping System
    Wiring harness connector (wiring harness side) terminal 26
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 9

or

  • Defective component:
    A6 Control Unit - Semi Active Damping System
E006 Result: Interruption
  • Circuit interruption between:
    A6 Control Unit - Semi Active Damping System
    Wiring harness connector (wiring harness side) terminal 27
    &
    X56 Axle, Front, Right & Extension Harness, Axle, Front, Right
    Wiring harness connector (wiring harness side) terminal 7

or

  • Defective component:
    A6 Control Unit - Semi Active Damping System





C-004 Front Left Body Acceleration Sensor Circuit > < C-002 Front Left Wheel Acceleration Sensor Circuit