Vauxhall Workshop Service and Repair Manuals

DTC

Diagnostic Trouble Code Storage Condition

Brake Switch Circuit Malfunction

• The control unit receives the following signal not or wrong:
  Brake pedal signal
• Above conditions must be fulfilled for at least 4 s .

Effect:

• The system telltale is switched on.
• "Emergency Mode" is activated

Automatic Transmission Range Sensor Circuit Malfunction

• Selector lever position switch coding logic does not indicate a valid combination.
• Above condition must be fulfilled for at least 0.5 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Automatic Transmission Fluid Temperature Sensor Circuit High Input

• Short to voltage or interruption in circuit to control unit terminal 37
• Selector lever in position R, D, 3, 2, 1
• Engine speed is greater than 400 rpm
• Above conditions must be fulfilled for at least 10 s .

Replacement Value:

• Automatic transmission oil temperature 150 °C (302 °F)

Effect:

• The malfunction indication is switched on.

Automatic Transmission Fluid Temperature Sensor Circuit Low Input

• Short to ground in circuit to control unit terminal 37
• Above condition must be fulfilled for at least 300 s .

Replacement Value:

• Automatic transmission oil temperature 150 °C (302 °F)

Effect:

• The malfunction indication is switched on.

Automatic-Transmission Input Speed Circuit No Signal

• No turbine wheel speed signal recognised
• 3000 pulses from automatic transmission output speed sensor detected
• Vehicle speed is greater than 7 km/h (4 mph) (1st gear), 13 km/h (8 mph) (2nd gear), 18 km/h (11 mph) (3rd gear) or 26 km/h (16 mph) (4th gear)
• Selector lever in position R, D, 3, 2, 1

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Automatic-Transmission Output Speed Circuit No Signal

• No automatic transmission output speed signal recognised
• Selector lever in position D, 3, 2, 1
• Vehicle speed is greater than 4 km/h (2 mph)
• Automatic transmission oil temperature is greater than -30 °C (-22 °F)
• 5000 pulses from turbine wheel speed sensor detected

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Engine Speed Signal Range/Performance

• The control unit receives the following signal not or wrong:
  Engine Speed
• Above condition must be fulfilled for at least 4 s .

Effect:

• The system telltale is switched on.
• "Emergency Mode" is activated

Gear Ratio Incorrect

• The deviation of speed ratio (automatic transmission output speed to turbine wheel speed) is greater than 10 % for longer than 5 s .
• Vehicle speed is greater than 25 km/h (16 mph)
• Selector lever in position D, 3, 2, 1
• Engine speed is greater than 400 rpm
• Automatic transmission oil temperature is greater than -30 °C (-22 °F)
• Throttle valve opening is greater than 10 %

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Torque Converter Clutch Circuit Malfunction

• The current measured by the control unit at the concerned output is too low.
• Above conditions must be fulfilled for at least 2.75 s .

Effect:

• Torque converter clutch solenoid is switched off.

Torque Converter Clutch Circuit Low Input

• Interruption in circuit to control unit terminal 15, 17
• Above condition must be fulfilled for at least 12.5 s .
• The slip control of the torque converter clutch is disabled.
• Torque converter clutch solenoid is switched off.

Effect:

Torque Converter Clutch Circuit High Input

• The current measured at the control unit output (terminal 15, 17 ) is too high.
• Above condition must be fulfilled for at least 0.5 s .

Effect:

• The slip control of the torque converter clutch is disabled.
• Torque converter clutch solenoid is switched off.

Pressure Control Solenoid Circuit High Input

• The current measured at the control unit output (terminal 14, 16 ) is too high.
• Above condition must be fulfilled for at least 0.5 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Pressure Control Solenoid Electrical Malfunction

• Incorrect voltage level at control unit terminal 14, 16
• Above condition must be fulfilled for at least 2.75 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Pressure Control Solenoid Circuit Low Input

• The current measured by the control unit at the concerned output is too low.
• Above condition must be fulfilled for at least 12.5 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Shift Solenoid A (1-2/3-4 Shift) Circuit Low Input

• The voltage level recognised by the control unit at the relevant control unit output (terminal 19 ) is "low" ( 0 V ), although the output was set "high" by the control unit ( 12 V ; solenoid actuated).
  (Short circuit to ground)
• Above condition must be fulfilled for at least 0.3 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Shift Solenoid A (1-2/3-4 Shift) Circuit Open

• The voltage level recognised by the control unit at the relevant control unit output (terminal 19 ) is "high" ( 12 V ), although the output was set "low" by the control unit ( 0 V ; solenoid not actuated).
  (Short circuit to voltage or circuit interruption)
• Above conditions must be fulfilled for at least 0.5 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Shift Solenoid B (2-3 Shift) Circuit Low Input

• The voltage level recognised by the control unit at the relevant control unit output (terminal 20 ) is "low" ( 0 V ), although the output was set "high" by the control unit ( 12 V ; solenoid actuated).
  (Short circuit to ground)
• Above condition must be fulfilled for at least 0.3 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Shift Solenoid B (2-3 Shift) Circuit Open

• The voltage level recognised by the control unit at the relevant control unit output (terminal 20 ) is "high" ( 12 V ), although the output was set "low" by the control unit ( 0 V ; solenoid not actuated).
  (Short circuit to voltage or circuit interruption)
• Above conditions must be fulfilled for at least 0.5 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Neutral Control Solenoid Voltage Low

• The voltage level recognised by the control unit at the relevant control unit output (terminal 18 ) is "low" ( 0 V ), although the output was set "high" by the control unit ( 12 V ; solenoid actuated).
  (Short circuit to ground)
• Above condition must be fulfilled for at least 0.3 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Neutral Control Solenoid Voltage High

• The voltage level recognised by the control unit at the relevant control unit output (terminal 18 ) is "high" ( 12 V ), although the output was set "low" by the control unit ( 0 V ; solenoid not actuated).
  (Short circuit to voltage or circuit interruption)
• Above condition must be fulfilled for at least 0.5 s .

Effect:

• The neutral control function is locked
• The malfunction indication is switched on.

Slippage Of Clutch 'C1' At Neutral Control Off

• Turbine wheel speed increases more than expected during shifting on clutch C1 .
• Main pressure is greater than 3000 hPa ( 3 bar )
• Automatic transmission oil temperature is greater than -10 °C (14 °F)
• Above conditions must be fulfilled for at least 0.3 s .

Effect:

• The neutral control function is locked
• The malfunction indication is switched on.

No Release Of Clutch 'C1' At Neutral Control On

• Vehicle speed is greater than 50 km/h (31 mph)
• Automatic transmission oil temperature is greater than -10 °C (14 °F)
• Main pressure is less than 150 hPa ( 0.15 bar )
• Turbine wheel speed is less than 400 rpm
• Clutch C1 inactive
• Above conditions must be fulfilled for at least 5 s .

Effect:

• The neutral control function is locked

No Engagement of Clutch 'C1' At Neutral Control On

• Turbine wheel speed is greater than 400 rpm
• Neutral Control is activated
• Vehicle speed is greater than 50 km/h (31 mph)
• Automatic transmission oil temperature is greater than -10 °C (14 °F)
• Main pressure is greater than 1500 hPa ( 1.5 bar )
• Above conditions must be fulfilled for at least 0.6 s .

Effect:

• The neutral control function is locked

Slippage Of Clutch 'C1' At Neutral Control On

• Turbine wheel speed is greater than expected.
• Neutral Control inactive
• Automatic transmission output speed is less than 250 rpm
• Automatic transmission oil temperature is less than 10 °C (50 °F)
• 1st gear engaged or selector lever in position 1
• Above conditions must be fulfilled for at least 10 s .
• Above condition must be fulfilled for at least 3 times.

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Shift Malfunction

• The fault will be stored if the engine speed exceeds a certain value during down-shifting.
• Selector lever in position D, 3, 2, 1

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Accelerator Pedal Position Sensor Malfunction

• The control unit receives the following signal not or wrong:
  Accelerator pedal position
• Above condition must be fulfilled for at least 4 s .

Effect:

• The system telltale is switched on.
• "Emergency Mode" is activated

Torque Converter Clutch Judders

• The control unit recognises judder at the torque converter clutch.

Effect:

• The slip control of the torque converter clutch is disabled.

Kickdown Switch Circuit Malfunction

• The control unit recognises a kickdown signal if the throttle valve opening is less than 65 % .
• Above condition must be fulfilled for at least 2 s .

Replacement Value:

• Kickdown function is active on a throttle valve opening greater than 73.5 % .
• Kickdown function is inactive on a throttle valve opening less than 70 % .

Throttle Position Signal Malfunction

• The control unit recognises no pulse width modulated (PWM) signal.
• Above condition must be fulfilled for at least 4 s .

Effect:

• "Emergency Mode" is activated
• The malfunction indication is switched on.

Engine Torque Signal Range/Performance

• The control unit receives the following signal not or wrong:
  Actual engine torque
  Above condition must be fulfilled for at least 4 s .

Effect:

• The system telltale is switched on.
• "Emergency Mode" is activated