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Vauxhall Workshop Service and Repair Manuals

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C-023 Front Impact Sensor Circuit > < C-021 Right Rollover Bar Squib Circuit (Shorted to Other Squib Circuit)

Astra H

C-022 - Co-Driver Seat Recognition Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Short to Voltage of Signal Circuit
  • Important:
    Before working on the pyrotechnical system:
    Ignition off
    Disconnect and mask battery negative terminal
    Wait 1 min until the capacitor in the control unit has discharged.
  • Disconnect wiring harness connector from:
    A63 Control Unit - Airbag
    X49 Body & Assembly - Seat, Front Passenger
  • Connect wiring harness connector to:
    G1 Battery
  • Ignition ON
  • Measure voltage between the following terminals:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T002

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between the following terminals:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T003

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    &
    A63 Control Unit - Airbag
    Wiring harness connector (wiring harness side) terminal 38 (XC18)

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T004

Check: Circuit Interruption of Ground Circuit
  • Measure resistance between the following terminals:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 5
    &
    Ground

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

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Child Seat Detection
Yes: No:
T006

Check: Interruption of Voltage Supply Circuit
  • Ignition ON
  • Measure voltage between the following terminals:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T007

Check: Circuit Interruption of Ground Circuit
  • Measure voltage between the following terminals:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 3
    &
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 5

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T008

Check: Interruption of Voltage Supply Circuit
  • Ignition ON
  • Measure voltage between the following terminals:
    FR16 Fuse
    Input contact
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T009

Check: Interruption of Voltage Supply Circuit
  • Remove electrical component from socket:
    K1_X131 Relay - Terminal 15
  • Measure voltage between the following terminals:
    K1_X131 Relay - Terminal 15
    Socket Terminal 30
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T010

Check: Interruption of Voltage Supply Circuit
  • Measure voltage between the following terminals:
    K1_X131 Relay - Terminal 15
    Socket Terminal 30
    &
    K1_X131 Relay - Terminal 15
    Socket Terminal 85

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T011

Check: Interruption of Signal Circuit
  • Ignition ON
  • Measure voltage between the following terminals:
    K1_X131 Relay - Terminal 15
    Socket Terminal 86
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T012

Check: Interruption of Voltage Supply Circuit
  • Remove electrical component from socket:
    FB5, FB6 Fuse
  • Measure voltage between the following terminals:
    FB5, FB6 Fuse
    Input contact
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:


Result

Cause Of Fault
E001 Result: Defective Component
  • Short to voltage/ground/interruption of circuit between:
    B145 Seat Occupied Detection - Front Passenger
    Wiring harness connector (component side) terminal 3
    &
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 5
    or
    B145 Seat Occupied Detection - Front Passenger
    Wiring harness connector (component side) terminal 2
    &
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    or
    B145 Seat Occupied Detection - Front Passenger
    Wiring harness connector (component side) terminal 1
    &
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 3

or

  • Defective component:
    B145 Seat Occupied Detection - Front Passenger
    or
    A63 Control Unit - Airbag

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:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 5
    &
    Ground
E003 Result: Interruption
  • Circuit interruption between:
    FR16 Fuse
    Output contact
    &
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 3

or

  • Defective component:
    B145 Seat Occupied Detection - Front Passenger
E004 Result: Interruption
  • Defective component:
    K1_X131 Relay - Terminal 15
E005 Result: Interruption
  • Defective component:
    X131 Rear 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.
E006 Result: Interruption
  • Circuit interruption between:
    K1_X131 Relay - Terminal 15
    Socket Terminal 85
    &
    Ground
E007 Result: Interruption
  • Circuit interruption between:
    FB5, FB6 Fuse
    Output contact
    &
    K1_X131 Relay - Terminal 15
    Socket Terminal 30
E008 Result: Interruption
  • Circuit interruption between:
    G1 Battery
    &
    FB5, FB6 Fuse
    Input contact
E009 Result: Defective Component
  • Defective component:
    B145A Simple Seat Occupied Detection - Front Passenger
E010 Result: Interruption
  • Circuit interruption between:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 5
    &
    Ground
E011 Result: Interruption
  • Circuit interruption between:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    &
    A63 Control Unit - Airbag
    Wiring harness connector (wiring harness side) terminal 38 (XC18)
E012 Result: Short to Ground
  • Short circuit to ground between:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    &
    A63 Control Unit - Airbag
    Wiring harness connector (wiring harness side) terminal 38 (XC18)
E013 Result: Short to Voltage
  • Short circuit to voltage between:
    X49 Body & Assembly - Seat, Front Passenger
    Wiring harness connector (wiring harness side) terminal 6
    &
    A63 Control Unit - Airbag
    Wiring harness connector (wiring harness side) terminal 38 (XC18)





C-023 Front Impact Sensor Circuit > < C-021 Right Rollover Bar Squib Circuit (Shorted to Other Squib Circuit)