Vauxhall Workshop Service and Repair Manuals

Test

Work Order Description

Nominal Value

Check: Short to Voltage/Ground/Interruption of Voltage Supply

• Ignition OFF
• Disconnect wiring harness connector from:
  B22 Sensor - Pedal Position
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground

4.8 ... 5.2 V

Check: Short to Voltage/Interruption of Ground Circuit

• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 5

4.8 ... 5.2 V

Check: Short to Voltage/Ground/Interruption of Voltage Supply

• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2
  &
  Ground

4.8 ... 5.2 V

Check: Short to Voltage/Interruption of Ground Circuit

• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 4

4.8 ... 5.2 V

Check: Short to Voltage of Signal Circuit

• Diagnostic Tester Data List Parameter
  APP Sensor 1 (Accelerator Pedal Position)

less than 0.3 V

Check: Short to Voltage of Signal Circuit

• Diagnostic Tester Data List Parameter
  APP Sensor 2 (Accelerator Pedal Position)

less than 0.3 V

Check: Short to Ground/Interruption of Signal Circuit

• Connect fused jumper wire to:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 6
• Diagnostic Tester Data List Parameter
  APP Sensor 2 (Accelerator Pedal Position)

greater than 4.8 V

Check: Short to Ground/Interruption of Signal Circuit

• Remove fused jumper wire
• Connect fused jumper wire to:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 3
• Diagnostic Tester Data List Parameter
  APP Sensor 1 (Accelerator Pedal Position)

greater than 4.8 V

Check: Short to Ground/Interruption of Signal Circuit

• Remove fused jumper wire
• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Measure resistance between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 3
  &
  Ground

greater than 500 kOhm

Check: Interruption of Signal Circuit

• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 54 (XC2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 3

less than 5 Ohm

Check: Short to Ground/Interruption of Signal Circuit

• Remove fused jumper wire
• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Measure resistance between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 6
  &
  Ground

greater than 500 kOhm

Check: Interruption of Signal Circuit

• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 37 (XC2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 6

less than 5 Ohm

Check: Short to Voltage of Signal Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Ignition ON
• Measure voltage between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 37 (XC2)
  &
  Ground

less than 0.3 V

Check: Short to Voltage of Signal Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Ignition ON
• Measure voltage between the following terminals:
  Wiring harness connector (wiring harness side) terminal 54 (XC2)
  &
  Ground

less than 0.3 V

Check: Short to Voltage of Ground Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Ignition ON
• Measure voltage between the following terminals:
  Wiring harness connector (wiring harness side) terminal 22 (XC2)
  &
  Ground

less than 0.3 V

Check: Circuit Interruption of Ground Circuit

• Ignition OFF
• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 22 (XC2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 4

less than 5 Ohm

Check: Short to Voltage/Ground/Interruption of Voltage Supply

• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2
  &
  Ground

greater than 5.2 V

Check: Short to Voltage of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC1) )
• Ignition ON
• Measure voltage between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 56 (XC1)
  &
  Ground

less than 0.3 V

Check: Short to Voltage of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Ignition ON
• Measure voltage between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC2)
  &
  Ground

less than 0.3 V

Check: Short to Ground/Interruption of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC1) )
• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 56 (XC1)
  &
  Ground

greater than 500 kOhm

Check: Interruption of Voltage Supply Circuit

• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC2)
  &
  Ground

greater than 500 Ohm

Check: Interruption of Voltage Supply Circuit

• Measure resistance between the following terminals:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2

less than 5 Ohm

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Voltage/Interruption of Ground Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  B18 Sensor - Pressure, Air Conditioning
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Wiring harness connector (wiring harness side) terminal 5

4.8 ... 5.2 V

Check: Short to Voltage of Ground Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC2) )
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 5
  &
  Ground

less than 0.3 V

Check: Circuit Interruption of Ground Circuit

• Ignition OFF
• Measure resistance between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 5
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 5 (XC2)

less than 5 Ohm

Check: Short to Voltage/Ground/Interruption of Voltage Supply

• Ignition OFF
• Disconnect wiring harness connector from:
  B22 Sensor - Pedal Position
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground

less than 4.8 V

Check: Short to Ground/Interruption of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  B69 Air Mass Meter
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the measurement each time:
  B28 Sensor - Camshaft
  Y56 Solenoid Valve - Exhaust Gas Recirculation

4.8 ... 5.2 V

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  B18 Sensor - Pressure, Air Conditioning
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground

4.8 ... 5.2 V

Check: Short to Ground of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC1, XC2) )
• Measure resistance between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground

greater than 500 kOhm

Check: Interruption of Voltage Supply Circuit

• Measure resistance between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 4 (XC1)

less than 5 Ohm

Check: Short to Voltage of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  B69 Air Mass Meter
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground
• Disconnect each of the following components/control units consecutively from the wiring harness and repeat the measurement each time:
  B28 Sensor - Camshaft
  Y56 Solenoid Valve - Exhaust Gas Recirculation

4.8 ... 5.2 V

Check: Vehicle Configuration

Is the following information correct for the actual vehicle?

Check: Short to Voltage of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  B18 Sensor - Pressure, Air Conditioning
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground

4.8 ... 5.2 V

Check: Short to Voltage of Voltage Supply Circuit

• Ignition OFF
• Disconnect wiring harness connector from:
  M3 Motor - Radiator Fan
  and
  A84 Control Unit - Engine
  (Wiring Harness Connector (XC1, XC2) )
• Ignition ON
• Measure voltage between the following terminals:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  Ground

less than 0.3 V

Result

Cause Of Fault

• Defective component:
  B22 Sensor - Pedal Position
  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:

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.

• 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.

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 54 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 44 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 19 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 3

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.

• Short circuit to ground between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 54 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 44 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 19 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 3

or

• Defective component:
  X125 Underhood Electronic Module

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 37 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 35 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 3 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 6

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.

• Short circuit to ground between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 37 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 35 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 3 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 6

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.

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 37 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 35 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 3 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 6

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.

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 54 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 44 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 19 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 3

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.

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 22 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 37 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 5 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 4

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.

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 22 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 37 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 5 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 4

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.

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 36 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 4 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2

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.

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 56 (XC1)
  &
  A111 Throttle Valve - Positioner
  Wiring harness connector (wiring harness side) terminal 3

or

• Defective component:
  A111 Throttle Valve - Positioner

• 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.

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 36 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 4 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2

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.

• Short circuit to ground between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 36 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 4 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 2

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.

• Short circuit to ground between:
  A111 Throttle Valve - Positioner
  Wiring harness connector (wiring harness side) terminal 3
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 56 (XC1)

or

• Defective component:
  A111 Throttle Valve - Positioner

• Defective component:
  B18 Sensor - Pressure, Air Conditioning

• 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.

• Circuit interruption between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 5 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 43 (XE3)
  or
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 5
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 18 (XE2)

or

• Defective component:
  X125 Underhood Electronic Module

• Short circuit to voltage between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 5 (XC2)
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 43 (XE3)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 18 (XE2)
  &
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 5
  &
  Concerned terminals of all wiring harness connectors, which are connected with the corresponding lead.

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.

• If the nominal value is reached during one of the measurements, the component/control unit that has been disconnected immediately before that measurement is defective.

• Defective component:
  B18 Sensor - Pressure, Air Conditioning

• Short circuit to ground between:
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 24 (XC1)
  &
  B69 Air Mass Meter
  Wiring harness connector (wiring harness side) terminal 4
  or
  Y56 Solenoid Valve - Exhaust Gas Recirculation
  Wiring harness connector (wiring harness side) terminal 3
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 7 (XC1)
  or
  Concerned terminals of all wiring harness connectors, which are connected with the corresponding lead.

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.

• Circuit interruption between:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 17 (XE2)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 42 (XE3)
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 4 (XC1)

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.

• Short circuit to ground between:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 17 (XE2)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 42 (XE3)
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 4 (XC1)
  &
  Concerned terminals of all wiring harness connectors, which are connected with the corresponding lead.

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.

• Defective component:
  B18 Sensor - Pressure, Air Conditioning

• Short circuit to voltage between:
  B28 Sensor - Camshaft
  Wiring harness connector (wiring harness side) terminal 1
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 21 (XC1)
  or
  Y56 Solenoid Valve - Exhaust Gas Recirculation
  Wiring harness connector (wiring harness side) terminal 3
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 7 (XC1)
  or
  Concerned terminals of all wiring harness connectors, which are connected with the corresponding lead.

or

• Defective component:
  A84 Control Unit - Engine

• Short circuit to voltage between:
  B22 Sensor - Pedal Position
  Wiring harness connector (wiring harness side) terminal 1
  &
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 17 (XE2)
  or
  X125 Underhood Electronic Module
  Wiring harness connector (wiring harness side) terminal 42 (XE3)
  &
  A84 Control Unit - Engine
  Wiring harness connector (wiring harness side) terminal 4 (XC1)
  &
  Concerned terminals of all wiring harness connectors, which are connected with the corresponding lead.

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.