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C-013 Stepper Motor Blender Circuit > < C-011 Vehicle Speed Information Circuit

Astra H

C-012 - Blower Heating Circuit

Test

Work Order Description

Nominal Value
T001

Check: Short to Voltage of Signal Circuit
  • Ignition ON
  • Air conditioning system OFF
  • Blower stage 0 selected
  • Is the following component switched off?
    M1_A13 Motor - Blower, Passenger Compartment

Test okay?
Yes: No:
T002

Check: Interruption of Voltage Supply Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    Y1_A13 Blower Regulator
  • Ignition ON
  • Connect test lamp ( 21 W ) and multimeter in parallel and measure voltage between the following terminals:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T003

Check: Circuit Interruption of Ground Circuit
  • Connect test lamp ( 21 W ) and multimeter in parallel and measure voltage between the following terminals:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 1
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 3

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T004

Check: Interruption of Signal Circuit
  • Blower stage (Automatic Climate Control SAC) 4 (Electronic Climate Control ECC) 7 selected
  • Measure voltage between the following terminals:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground
(Automatic Climate Control SAC)

4.8 ... 5.2 V

(Electronic Climate Control ECC)

4.8 ... 5.2 V
Voltage Measurement Current Value: V
Yes: No:
T005

Check: Component
  • Ignition OFF
  • Disconnect wiring harness connector from:
    Y1_A13 Blower Regulator
    Wiring harness connector colour RD
    and
    Y1_A13 Blower Regulator
    Wiring harness connector colour BK
  • Ignition ON
  • Connect fused jumper wire to:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) wiring colour RD
    &
    Battery voltage
  • Connect unfused jumper wire to:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) wiring colour BK
    &
    Ground

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

Is the following component switched on?

M1_A13 Motor - Blower, Passenger Compartment
Yes: No:
T006

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A1_A14 Control Unit - Climate Control
    (Wiring Harness Connector XC42 )
  • Ignition ON
  • Measure voltage between the following terminals:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 3 (XC42)
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T007

Check: Short to Ground of Signal Circuit
  • Ignition OFF
    Measure resistance between the following terminals:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 3 (XC42)
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T008

Check: Interruption of Voltage Supply Circuit
  • Measure resistance between the following terminals:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 3 (XC42)
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 4

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T009

Check: Interruption of Signal Circuit
  • Blower stage (Automatic Climate Control SAC) 4 (Electronic Climate Control ECC) 7 selected
  • Measure voltage between the following terminals:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground
(Automatic Climate Control SAC)

less than 4.8 V

(Electronic Climate Control ECC)

less than 4.8 V
Voltage Measurement Current Value: V
Yes: No:
T010

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    Y1_A13 Blower Regulator
  • Ignition ON
  • Blower stage 0 selected
  • Measure voltage between the following terminals:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

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


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    Y1_A13 Blower Regulator
    or
    A1_A14 Control Unit - Climate Control

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: Interruption
  • Circuit interruption between:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 3 (XC42)
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 4
E003 Result: Short to Ground
  • Short circuit to ground between:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 3 (XC42)
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 4
E004 Result: Short to Voltage
  • Short circuit to voltage between:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 3 (XC42)
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 4
E005 Result: Defective Component
  • Defective component:
    M1_A13 Motor - Blower, Passenger Compartment
E006 Result: Short to Ground/Interruption
  • Short circuit to ground/interruption of circuit between:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 8 (XC42)
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    A1_A14 Control Unit - Climate Control

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: Defective Component
  • Defective component:
    A1_A14 Control Unit - Climate Control

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: Interruption
  • Circuit interruption between:
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground
E009 Result: Interruption
  • Circuit interruption between:
    X125 Underhood Electronic Module
    Wiring harness connector (wiring harness side) terminal 31 (XE2)
    &
    Y1_A13 Blower Regulator
    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.
E010 Result: Defective Component
  • Defective component:
    Y1_A13 Blower Regulator
    or
    M1_A13 Motor - Blower, Passenger Compartment

Note:

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

The system must be checked for proper operation after every replacement.
E011 Result: Short to Voltage
  • Short circuit to voltage between:
    A1_A14 Control Unit - Climate Control
    Wiring harness connector (wiring harness side) terminal 8 (XC42)
    &
    Y1_A13 Blower Regulator
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    A1_A14 Control Unit - Climate Control

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.





C-013 Stepper Motor Blender Circuit > < C-011 Vehicle Speed Information Circuit