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C-029 O2 Sensor Heater Circuit > < C-027 Injector Circuit

Astra H

C-028 - O2 Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    B56 Sensor - Oxygen, Exhaust, Heated
    &
    A84 Control Unit - Engine
    (Wiring Harness Connector XC53 )
  • Ignition ON
  • Measure voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 1
    &
    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:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 1
    &
    Ground

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

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 1
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 65 (XC53)

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

Check: Short to Voltage of Signal Circuit
  • Ignition ON
  • Measure voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 5
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T005

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 5
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T006

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 5
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 87 (XC53)

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T007

Check: Short to Voltage of Signal Circuit
  • Ignition ON
  • Measure voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T008

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T009

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 86 (XC53)

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T010

Check: Short to Voltage of Signal Circuit
  • Ignition ON
  • Measure voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 6
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T011

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 6
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T012

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 6
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 64 (XC53)

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


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    B56 Sensor - Oxygen, Exhaust, Heated
    or
    A84 Control Unit - Engine

Note:

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

The system must be checked for proper operation after every replacement.

Important:

After replacing the following component the programming function for the replacement of the corresponding component has to be performed by using the diagnostic tester:

B56 Sensor - Oxygen, Exhaust, Heated

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.
E002 Result: Interruption
  • Circuit interruption between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 6
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 64 (XC53)
E003 Result: Short to Ground
  • Short circuit to ground between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 6
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 64 (XC53)
E004 Result: Short to Voltage
  • Short circuit to voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 6
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 64 (XC53)
E005 Result: Interruption
  • Circuit interruption between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 86 (XC53)
E006 Result: Short to Ground
  • Short circuit to ground between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 86 (XC53)
E007 Result: Short to Voltage
  • Short circuit to voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 86 (XC53)
E008 Result: Interruption
  • Circuit interruption between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 5
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 87 (XC53)
E009 Result: Short to Ground
  • Short circuit to ground between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 5
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 87 (XC53)
E010 Result: Short to Voltage
  • Short circuit to voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 5
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 87 (XC53)
E011 Result: Interruption
  • Circuit interruption between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 1
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 65 (XC53)
E012 Result: Short to Ground
  • Short circuit to ground between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 1
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 65 (XC53)
E013 Result: Short to Voltage
  • Short circuit to voltage between:
    B56 Sensor - Oxygen, Exhaust, Heated
    Wiring harness connector (wiring harness side) terminal 1
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 65 (XC53)





C-029 O2 Sensor Heater Circuit > < C-027 Injector Circuit