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C-031 Engine-Compression > < C-029 Mechanical Function

Astra H

C-030 - System Voltage Circuit

Test

Work Order Description

Nominal Value
T001

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
    (Wiring Harness Connector XC12 )
  • Ignition ON
  • Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 75 (XC12)
    &
    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:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 75 (XC12)
    &
    Ground

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

Check: Interruption of Signal Circuit
  • Disconnect wiring harness connector from:
    G8 Alternator
  • Measure resistance between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 75 (XC12)
    &
    G8 Alternator
    Wiring harness connector colour (Default) BURD (2007 - 2011), (Z 17 DTL) BNBK

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

Default

less than 5 Ohm

(2007 - 2011), (Z 17 DTL)

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


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    G8 Alternator
    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.
E002 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 75 (XC12)
    &
    G8 Alternator
    Wiring harness connector colour (Default) BURD (2007 - 2011), (Z 17 DTL) BNBK

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

E003 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 75 (XC12)
    &
    G8 Alternator
    Wiring harness connector colour (Default) BURD (2007 - 2011), (Z 17 DTL) BNBK
    or
  • Defective component:
    G8 Alternator

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

E004 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 75 (XC12)
    &
    G8 Alternator
    Wiring harness connector colour (Default) BURD (2007 - 2011), (Z 17 DTL) BNBK (Z 17 DTH) BURD

or

  • Defective component:
    G8 Alternator

Note:

Wiring colours: BK=Black, BN=Brown, BU=Blue, GD=Gold, GN=Green, GY=Grey, OG=Orange, PK=Pink, RD=Red, SR=Silver, TQ=Turquoise, VT=Violet, WH=White, YE=Yellow,
L=Light, D=Dark






C-031 Engine-Compression > < C-029 Mechanical Function