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C-021 O2 Sensor Heater Circuit (Behind Catalyst) > < C-019 O2 Sensor Heater Circuit (Before Catalyst)

Astra H

C-020 - O2 Sensor Circuit (Before Catalyst)

Test

Work Order Description

Nominal Value
T001

Check: Short to Voltage/Ground of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    B166 Sensor - Oxygen, Mixture Control, Heated
  • Ignition ON
  • Diagnostic Tester Data List Parameter
    B1S1 O2 Sensor (Bank 1 Sensor 1)

Note:

This data list parameter is in the data list 3 .

1450 ... 1500 mV
Diagnostic Tester Data List Parameter Current Value:
Yes: No:
T002

Check: Interruption of Signal Circuit
  • Measure voltage between the following terminals:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

2700 ... 3100 mV
Voltage Measurement Current Value: mV
Yes: No:
T003

Check: Component
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A84 Control Unit - Engine
    (Wiring Harness Connector XC54 )
  • Ignition ON
  • Measure voltage between the following terminals:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 3
    &
    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:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

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

Check: Circuit Interruption of Ground Circuit
  • Measure resistance between the following terminals:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 29 (XC54)

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T006

Check: Short to Voltage of Signal Circuit
  • Ignition ON
    Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 45 (XC54)
    &
    Ground

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

Check: Short to Ground of Voltage Supply Circuit
  • Ignition OFF
  • Measure resistance between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 45 (XC54)
    &
    Ground

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

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 45 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 6

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

Check: Short to Voltage of Signal Circuit
  • Ignition ON
    Measure voltage between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 13 (XC54)
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T010

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 13 (XC54)
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T011

Check: Interruption of Signal Circuit
  • Measure resistance between the following terminals:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 13 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 1

less than 5 Ohm
Resistance Measurement Current Value: Ohm
Yes: No:
T012

Check: Mechanical Function
  • Check mechanical functionality of the following components and all attached parts:
    Exhaust system
    Intake system
    Injection valves
    Fuel pressure

Test okay?
Yes: No:
T013

Check: Short to Voltage/Ground of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    B166 Sensor - Oxygen, Mixture Control, Heated
  • Ignition ON
  • Diagnostic Tester Data List Parameter
    B1S1 O2 Sensor (Bank 1 Sensor 1)

Note:

This data list parameter is in the data list 3 .

less than 1450 mV
Diagnostic Tester Data List Parameter Current Value:
Yes: No:


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    B166 Sensor - Oxygen, Mixture Control, Heated
    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.

The system must be checked for proper operation after every replacement.
E002 Result: Defective Component
  • Defective component:
    Exhaust system
E003 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 13 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 1
E004 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 13 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 1
E005 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 13 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 1
E006 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 45 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 6
E007 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 45 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 6
E008 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 45 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 6
E009 Result: Interruption
  • Circuit interruption between:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 29 (XC54)
E010 Result: Short to Ground
  • Short circuit to ground between:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 3
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 29 (XC54)
E011 Result: Short to Voltage
  • Short circuit to voltage between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 29 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 3
E012 Result: Interruption
  • Circuit interruption between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 61 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    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.
E013 Result: Short to Ground
  • Short circuit to ground between:
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 61 (XC54)
    &
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 2

or

  • Defective component:
    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.
E014 Result: Short to Voltage
  • Short circuit to voltage between:
    B166 Sensor - Oxygen, Mixture Control, Heated
    Wiring harness connector (wiring harness side) terminal 2
    &
    A84 Control Unit - Engine
    Wiring harness connector (wiring harness side) terminal 61 (XC54)

or

  • Defective component:
    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.





C-021 O2 Sensor Heater Circuit (Behind Catalyst) > < C-019 O2 Sensor Heater Circuit (Before Catalyst)