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C-008 Steering Angle Sensor Circuit > < C-006 Pressure Sensor Circuit

Astra H

C-007 - Yaw Rate Sensor Circuit

Test

Work Order Description

Nominal Value
T001

Check: Short to Ground/Interruption of Voltage Supply Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    B85 Sensor - Rotation Rate
  • Ignition ON
  • Measure voltage between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

greater than 11 V
Voltage Measurement Current Value: V
Yes: No:
T002

Check: Circuit Interruption of Ground Circuit
  • Measure voltage between the following terminals:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 4
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 1

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

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Open & Start
Yes: No:
T004

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A37 Control Unit - Anti-Lock Brake System
  • Ignition ON
  • Measure voltage between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

Note:

If the vehicle is equipped with Open & Start, perform the measurement within 15s after Ignition ON.

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

Check: Short to Voltage of Signal Circuit
  • Ignition ON
  • Measure voltage between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

Note:

If the vehicle is equipped with Open & Start, perform the measurement within 15s after Ignition ON.

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T006

Check: Short to Ground of Signal Circuit
  • Measure resistance between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T007

Check: Short to Ground of Signal Circuit
  • Measure resistance between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

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

Check: Short Circuit in Wiring Harness
  • Measure resistance between the following terminals:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3

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

Check: Interruption of Signal Circuit
  • Connect fused jumper wire to:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 19
    &
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 25
  • Measure resistance between the following terminals:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3

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

Check: Short to Voltage of Signal Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A37 Control Unit - Anti-Lock Brake System
  • Ignition ON
  • Measure voltage between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

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

Check: Short to Voltage of Signal Circuit
  • Measure voltage between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
    &
    Ground

less than 0.3 V
Voltage Measurement Current Value: V
Yes: No:
T012

Check: Short to Ground of Signal Circuit
  • Ignition OFF
  • Measure resistance between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T013

Check: Short to Ground of Voltage Supply Circuit
  • Ignition OFF
  • Disconnect wiring harness connector from:
    A37 Control Unit - Anti-Lock Brake System
  • Measure resistance between:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 4
    &
    Ground

greater than 500 kOhm
Resistance Measurement Current Value: kOhm
Yes: No:
T014

Check: Interruption of Voltage Supply Circuit
  • Measure resistance between the following terminals:
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 4
    &
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 4

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


Result

Cause Of Fault
E001 Result: Defective Component
  • Defective component:
    B85 Sensor - Rotation Rate
    or
    A37 Control Unit - Anti-Lock Brake System

Important:

After replacing the following component the new component must be calibrated by using the diagnostic tester:

B85 Sensor - Rotation Rate

For vehicles with ESP, the Steering Angle Sensor and the Yaw Rate Sensor have to be calibrated by using the diagnostic tester after replacing the control unit.

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:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 25
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    or
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 19
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
E003 Result: Short Circuit in Wiring Harness
  • Short circuit in wiring harness between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 25
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
    and
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 19
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
E004 Result: Short to Ground
  • Short circuit to ground between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 19
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
E005 Result: Short to Ground
  • Short circuit to ground between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 25
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
E006 Result: Short to Voltage
  • Short circuit to voltage between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 19
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 3
E007 Result: Short to Voltage
  • Short circuit to voltage between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 25
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 2
E008 Result: Interruption
  • Short circuit to voltage/interruption of circuit between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 10
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 1
E009 Result: Defective Component
  • Defective component:
    A37 Control Unit - Anti-Lock Brake System

Important:

For vehicles with ESP, the Steering Angle Sensor and the Yaw Rate Sensor have to be calibrated by using the diagnostic tester after replacing the control unit.
E010 Result: Interruption
  • Circuit interruption between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 4
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 4
E011 Result: Short to Ground
  • Short circuit to ground between:
    A37 Control Unit - Anti-Lock Brake System
    Wiring harness connector (wiring harness side) terminal 4
    &
    B85 Sensor - Rotation Rate
    Wiring harness connector (wiring harness side) terminal 4





C-008 Steering Angle Sensor Circuit > < C-006 Pressure Sensor Circuit