BMW Cars 1999-06

4.8L V8 - Auto 5

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Trouble Code: P0748



Pressure Regulator Valve 2 Upper Threshold

Possible Causes:



Pressure control solenoid circuit is shorting to ground
 
Pressure control solenoid circuit is open
 
Valve has failed
 
TCM has failed
 

Trouble Code: P0753



Solenoid Valve 1 Upper Threshold

Possible Causes:



Pressure control solenoid circuit is shorting to ground
 
Pressure control solenoid circuit is open
 
Valve has failed
 
TCM has failed
 

Trouble Code: P0758



Solenoid Valve 2 Upper Threshold

Possible Causes:



Pressure control solenoid circuit is shorting to ground
 
Pressure control solenoid circuit is open
 
Valve has failed
 
TCM has failed
 

Trouble Code: P0778



Pressure Control Solenoid "B" Electrical

Possible Causes:



Shift Solenoid connector is damaged, open or shorted
 
Shift Solenoid control circuit is open
 
Shift Solenoid control circuit is shorted to ground
 
Shift Solenoid is damaged or it has failed
 

Trouble Code: P0798



Pressure Regulator Valve 2 Upper Threshold

Possible Causes:



Pressure control solenoid circuit is shorting to ground
 
Pressure control solenoid circuit is open
 
Valve has failed
 
TCM has failed
 

Trouble Code: P1001



Valvetronic (VVT) Limp Home Request High Input

Possible Causes:



Resolve the primary fault.
 

Trouble Code: P1002



Valvetronic (VVT) Limp Home Request Low Input

Possible Causes:



Resolve the primary fault.
 

Trouble Code: P1003



Valvetronic (VVT) Limp Home Request Open Circuit

Possible Causes:



Resolve the primary fault.
 

Trouble Code: P1004



Valvetronic (VVT) Guiding Sensor Solenoid Loss (Bank 1)

Possible Causes:



Defective sensor.
 

Trouble Code: P1005



Valvetronic (VVT) Guiding Sensor Reset Error (Bank 1)

Possible Causes:



Plug contact problem at Pin 6 on sensor
 
Oil in plug at sensor
 
Replace sensor
 
Repair gaskets
 

Trouble Code: P1006



Valvetronic (VVT) Guiding Sensor Parity Error (Bank 1)

Possible Causes:



Plug contact problem at Pin 6 on sensor
 
Oil in plug at sensor
 
Replace sensor
 
Repair gaskets
 

Trouble Code: P1007



Valvetronic (VVT) Guiding Sensor Gradient Error (Bank 1)

Possible Causes:



Replace sensor
 

Trouble Code: P1008



Valvetronic (VVT) Guiding Sensor Solenoid Loss (Bank 2)

Possible Causes:



Defective sensor.
 

Trouble Code: P1009



Valvetronic (VVT) Guiding Sensor Reset Error (Bank 2)

Possible Causes:



Plug contact problem at Pin 6 on sensor
 
Oil in plug at sensor
 
Replace sensor
 
Repair gaskets
 

Trouble Code: P1010



Valvetronic (VVT) Guiding Sensor Parity Error (Bank 2)

Possible Causes:



Plug contact problem at Pin 6 on sensor
 
Oil in plug at sensor
 
Replace sensor
 
Repair gaskets
 

Trouble Code: P1011



Valvetronic (VVT) Guiding Sensor Gradient Error (Bank 2)

Possible Causes:



Replace sensor
 

Trouble Code: P1012



Valvetronic (VVT) Reference Sensor Solenoid Loss (Bank 1)

Possible Causes:



Defective sensor.
 

Trouble Code: P1013



Valvetronic (VVT) Reference Sensor Reset Error (Bank 1)

Possible Causes:



Plug contact problem at Pin 6 on sensor
 
Oil in plug at sensor
 
Replace sensor
 
Repair gaskets
 

Trouble Code: P1014



Valvetronic (VVT) Reference Sensor Parity Error (Bank 1)

Possible Causes:



Plug contact problem at Pin 6 on sensor
 
Oil in plug at sensor
 
Replace sensor
 
Repair gaskets
 

Trouble Code: P1015



Valvetronic (VVT) Reference Sensor Gradient Error (Bank 1)

Possible Causes:



Replace sensor
 

Trouble Code: P1022



Valvetronic (VVT), Eccentric Shaft Sensor 2 Circuit Low Input

Possible Causes:



Short to ground in wiring harness
 
VVT-SG defective
 
Short circuit within the sensor
 
Check plug and wiring harness for sensor defect
 

Trouble Code: P1023



Valvetronic (VVT) Self-Learning Function Faulty Adjustment Range (Bank 1)

Possible Causes:



Stuck at upper travel limit
 
Travel limit worn or deformed
 
Wear in idler lever
 
Torque compensation spring missing or not connected
 

Trouble Code: P1024



Valvetronic (VVT) Self-Learning Function Faulty Lower Learning Range (Bank 1)

Possible Causes:



Stuck at upper travel limit
 
Defective sensor magnet missing)
 
Travel limit worn or deformed
 
Wear in idler lever
 
Torque compensation spring missing or not connected
 

Trouble Code: P1025



Valvetronic (VVT) Self-Learning Function No Positions Stored (Bank 1)

Possible Causes:



Conduct travel limit initialization.
 

Trouble Code: P1026



Valvetronic (VVT) Self-Learning Function Faulty Adjustment Range (Bank 2)

Possible Causes:



Stuck at upper travel limit
 
Travel limit worn or deformed
 
Wear in idler lever
 
Torque compensation spring missing or not connected
 

Trouble Code: P1027



Valvetronic (VVT) Self-Learning Function Faulty Lower Learning Range (Bank 2)

Possible Causes:



Stuck at upper travel limit
 
Defective sensor (magnet missing)
 
Travel limit worn or deformed
 
Wear in idler lever
 
Torque compensation spring missing or not connected
 

Trouble Code: P1028



Valvetronic (VVT) Self-Learning Function No Positions Stored (Bank 2)

Possible Causes:



Conduct travel limit initialization.
 

Trouble Code: P1030



Valvetronic (VVT) Actuator Monitoring Position Control, Control Deviation (Bank 1)

Possible Causes:



Low battery charge
 
Open motor control circuit
 
Motor shorted to ground
 
Loose sensor or it is operating at the limit
 

Trouble Code: P1031



Valvetronic (VVT) Actuator Monitoring Recognition of Direction of Rotation Plausibility (Bank 1)

Possible Causes:



Low battery charge
 
Open motor control circuit
 
Motor shorted to ground
 
Loose sensor or it is operating at the limit
 

Trouble Code: P1033



Valvetronic (VVT) Actuator Monitoring Position Control, Control Deviation (Bank 2)

Possible Causes:



Low battery charge
 
Open motor control circuit
 
Motor shorted to ground
 
Loose sensor or it is operating at the limit
 

Trouble Code: P1034



Valvetronic (VVT) Actuator Monitoring Recognition of Direction of Rotation Plausibility (Bank 1)

Possible Causes:



Low battery charge
 
Open motor control circuit
 
Motor shorted to ground
 
Loose sensor or it is operating at the limit
 

Trouble Code: P1035



Valvetronic (VVT) CAN Message Monitoring Faulty Desired Message (Bank 1)

Possible Causes:



ECU failure (or SZL or ZGM)
 
Bus system failure
 
Defective bus controller (SZL or ZGM)
 
Short circuit in CAN wire or open circuit.
 
Defective DME
 
Defective VVT-SG
 

Trouble Code: P1036



Valvetronic (VVT) CAN Timeout VVT-Desired Message (Bank 1)

Possible Causes:



ECU failure (or SZL or ZGM)
 
Bus system failure
 
Defective bus controller (SZL or ZGM)
 
Short circuit in CAN wire or open circuit.
 
Defective DME
 
Defective VVT-SG
 

Trouble Code: P1037



Valvetronic (VVT) CAN Timeout Message (Bank 1)

Possible Causes:



ECU failure (or SZL or ZGM)
 
Bus system failure
 
Defective bus controller (SZL or ZGM)
 
Short circuit in CAN wire or open circuit.
 
Defective DME
 
Defective VVT-SG
 

Trouble Code: P1038



Valvetronic (VVT) CAN Message Monitoring Faulty Desired Message (Bank 2)

Possible Causes:



ECU failure (or SZL or ZGM)
 
Bus system failure
 
Defective bus controller (SZL or ZGM)
 
Short circuit in CAN wire or open circuit.
 
Defective DME
 
Defective VVT-SG
 

Trouble Code: P1039



Valvetronic (VVT) CAN Timeout VVT-Desired Message (Bank 2)

Possible Causes:



ECU failure (or SZL or ZGM)
 
Bus system failure
 
Defective bus controller (SZL or ZGM)
 
Short circuit in CAN wire or open circuit.
 
Defective DME
 
Defective VVT-SG
 

Trouble Code: P1040



Valvetronic (VVT) CAN Timeout Message (Bank 2)

Possible Causes:



ECU failure (or SZL or ZGM)
 
Bus system failure
 
Defective bus controller (SZL or ZGM)
 
Short circuit in CAN wire or open circuit.
 
Defective DME
 
Defective VVT-SG
 

Trouble Code: P1041



Valvetronic (VVT) Actuator Control Module EEPROM Error (Bank 1)

Possible Causes:



Engine Control Module (DME) has failed
 
Voltage supply for Engine Control Module (DME) has shorted
 

Trouble Code: P1042



Valvetronic (VVT) Actuator Control Module Random Access Memory Error (Bank 1)

Possible Causes:



Battery terminal corrosion, or loose battery connection
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement. Remember to check for Aftermarket Performance Products before replacing a DME.
 

Trouble Code: P1043



Valvetronic (VVT) Actuator Control Module Read Only Memory Error (Bank 1)

Possible Causes:



Battery terminal corrosion, or loose battery connection
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement. Remember to check for Aftermarket Performance Products before replacing a DME.
 

 
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