BMW Cars 1999-06

3.0L L6 - Auto 15

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Trouble Code: P3025



O2S Sensor Initialization Error WRAF-IC (Bank 2 Sensor 1)

Possible Causes:



Internal HW fault in control module
 
Replace control module
 

Trouble Code: P3026



O2 Sensor Operating Temperature Not Reached Bank 1 Sensor 1

Possible Causes:



Oxygen sensor heater for oxygen sensor (HO2S) before catalytic converter is faulty
 
O2S is contaminated (due to presence of silicone in fuel)
 
O2S signal and ground circuit wires crossed in wiring harness
 
O2S signal circuit is shorted to sensor or chassis ground
 
O2S element before the catalytic converter has failed (internal short condition)
 
Leaks present in the exhaust manifold or exhaust pipes
 

Trouble Code: P3027



O2 Sensor Operating Temperature Not Reached Bank 2 Sensor 1

Possible Causes:



Oxygen sensor heater for oxygen sensor (HO2S) before catalytic converter is faulty
 
O2S is contaminated (due to presence of silicone in fuel)
 
O2S signal and ground circuit wires crossed in wiring harness
 
O2S signal circuit is shorted to sensor or chassis ground
 
O2S element before the catalytic converter has failed (internal short condition)
 
Leaks present in the exhaust manifold or exhaust pipes
 

Trouble Code: P3028



O2 Sensor Heater Control No Activity Detected Bank 1 Sensor 1

Possible Causes:



Oxygen sensor heater for oxygen sensor (HO2S) before catalytic converter is faulty
 
O2S is contaminated (due to presence of silicone in fuel)
 
O2S signal and ground circuit wires crossed in wiring harness
 
O2S signal circuit is shorted to sensor or chassis ground
 
O2S element before the catalytic converter has failed (internal short condition)
 
Leaks present in the exhaust manifold or exhaust pipes
 

Trouble Code: P3029



O2 Sensor Heater Control No Activity Detected Bank 2 Sensor 1

Possible Causes:



Oxygen sensor heater for oxygen sensor (HO2S) before catalytic converter is faulty
 
O2S is contaminated (due to presence of silicone in fuel)
 
O2S signal and ground circuit wires crossed in wiring harness
 
O2S signal circuit is shorted to sensor or chassis ground
 
O2S element before the catalytic converter has failed (internal short condition)
 
Leaks present in the exhaust manifold or exhaust pipes
 

Trouble Code: P3037



O2S Sensor Positive Current Control Circuit/Open Circuit (Bank 1 Sensor 1)

Possible Causes:



Check plugs
 
Check wiring harness
 
Replace sensor
 

Trouble Code: P3200



Power CAN, CAN Chip Defective

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3201



Power CAN, DPRAM-CAN Chip Defective

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3202



Powertrain CAN, CAN Chip Cut-Off

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3203



Local CAN, LoCAN Chip Defective

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3204



Local CAN, DPRAM-LoCAN Chip Defective

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3205



Local CAN, DPRAM-LoCAN Chip Cut-Off

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3206



CAN Timeout ARS

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3207



CAN Message Monitoring ARS No Signal

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3208



CAN Message Monitoring ARS Plausibility

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3209



CAN Message Monitoring ASC/DSC Alive Check Malfunction

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3210



CAN Message Monitoring ASC/DSC Plausibility

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3211



CAN Message Monitoring CAS No Signal

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3212



CAN Message Monitoring CAS Plausibility

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3213



CAN Message Monitoring ETC Alive Check Malfunction

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3214



CAN Message Monitoring ETC Plausibility

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3215



CAN Message Monitoring IHKA (Automatic Heating and Air Conditioning) No Signal

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3216



CAN Timeout Instrument Pack

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3217



CAN Message Monitoring Instrument Pack Plausibility

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3219



CAN Message Monitoring SZL (Switch Cluster Steering Column) Alive Check Malfunction

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3220



CAN Message Monitoring SZL (Switch Cluster Steering Column) No Signal

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3221



CAN Message Monitoring SZL (Switch Cluster Steering Column) Plausibility

Possible Causes:



CAN data bus wires have short circuited to each other
 
ECU has failed
 
BUS system failure
 
Defective bus controller (EGS)
 

Trouble Code: P3223



Generator Mechanical Error

Possible Causes:



Wires have short circuited to each other
 
ECU has failed
 
Generator failure or installed incorrectly
 

Trouble Code: P3225



Generator Communication Error

Possible Causes:



Wires have short circuited to each other
 
ECU has failed
 
Generator failure
 

Trouble Code: P3226



E-Box Control Circuit Fan High

Possible Causes:



Wires have short circuited to each other
 
ECU has failed
 
Generator failure
 

Trouble Code: P3227



E-Box Control Circuit Fan Low

Possible Causes:



Wires have short circuited to each other
 
ECU has failed
 
Generator failure
 

Trouble Code: P3228



E-Box Control Circuit Open Circuit

Possible Causes:



Wires have short circuited to each other
 
ECU has failed
 
Generator failure
 

Trouble Code: P3231



Control Module Monitoring Error Response Plausibility

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3232



Control Module Monitoring Ignition Timing Plausibility

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3233



Control Module Monitoring Relative Charge Plausibility

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3236



Control Module Monitoring Injection Time Relative Fuel Quantity Plausibility

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3237



Control Module Monitoring Fuel Correction Error

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3238



Control Module Monitoring TPU Chip Defective

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3247



Internal Control Module NVRAM Backup Error

Possible Causes:



Battery terminal corrosion, loose battery connection, or faulty
 
Connection to the DME interrupted, or the circuit has been opened
 
Reprogramming error has occurred
 
and needs replacement.
 
Voltage supply for Engine Control Module (DME) is faulty
 

Trouble Code: P3300



Ignition Coil Cylinder 1 High Input or None-Impedance

Possible Causes:



Engine speed (RPM) sensor has failed
 
Camshaft Position (CMP) sensor has failed
 
Power Supply Relay is shorted to an open circuit
 
There is a malfunction in voltage supply
 
Ignition coilpack is damaged or it has failed
 
Cylinder 1 to 4 Fuel Injector(s) have failed
 

 
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