Home/BMW/3 series/BMW 3 series E46 facelift (2001-2006)/Repair manual/Testing & Diagnostics/Diagnostic Trouble Codes with Diagnostics (N52): Overview
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Diagnostic Trouble Codes with Diagnostics (N52): Overview BMW 3 series E46 facelift

Testing & Diagnostics ~1822 words

BMW Fault Code Description

Intake VANOS, activation

VANOS intake

Exhaust VANOS, activation

Exhaust VANOS, mechanism

Crankshaft - inlet camshaft, correlation

Crankshaft - exhaust camshaft, correlation.

Oxygen sensor heating before catalytic converter, activation

Oxygen sensor heating before catalytic converter, activation

Oxygen sensor heating before catalytic converter, activation

Oxygen sensor heating behind catalytic converter, activation

Oxygen sensor heating behind catalytic converter, activation

Oxygen sensor heating behind catalytic converter, activation

Oxygen sensors before catalytic converter mixed up

Oxygen sensors behind catalytic converter, mixed up

Oxygen sensor heating before catalytic converter 2, activation

Oxygen sensor heating before catalytic converter 2, activation

Oxygen sensor heating before catalytic converter 2, activation

Oxygen sensor heating before catalytic converter, function

Oxygen sensor heating behind catalytic converter 2, activation

Oxygen sensor heating behind catalytic converter 2, activation

Oxygen sensor heating behind catalytic converter 2, activation.

Oxygen sensor heating before catalytic converter 2, function

Air-mass sensor, signal

Air-mass sensor, signal

Throttle-valve potentiometer 1, plausibility to air mass

Throttle-valve potentiometer 1

Throttle-valve potentiometer 1

Control module, internal fault: oxygen sensor, evaluation module

Control module, internal fault: oxygen sensor, evaluation module

Oxygen sensor before catalytic converter, dynamics

Oxygen sensor heating before catalytic converter, function

Oxygen sensor behind catalytic converter, signal

Oxygen sensor behind catalytic converter, signal

Oxygen sensor behind catalytic converter, signal

Oxygen sensor behind catalytic converter, signal

Oxygen sensor heating behind catalytic converter, function

Control module, internal fault: oxygen sensor 2, evaluation module

Control module, internal fault: oxygen sensor 2, evaluation module

Oxygen sensor before catalytic converter 2, dynamics

Oxygen sensor heating before catalytic converter 2, function

Oxygen sensor behind catalytic converter 2, signal

Oxygen sensor behind catalytic converter 2, signal

Oxygen sensor behind catalytic converter 2, signal

Oxygen sensor behind catalytic converter 2, signal

Oxygen sensor heating behind catalytic converter 2, function

Mixture control

Mixture control

Mixture control 2

Mixture control 2

Fuel injector, cylinder 1, activation

Fuel injector, cylinder 2, activation

Fuel injector, cylinder 3, activation

Fuel injector, cylinder 4, activation

Fuel injector, cylinder 5, activation

Fuel injector, cylinder 6, activation

Throttle-valve potentiometer 2, plausibility to air mass.

Throttle-valve potentiometer 2

Throttle-valve potentiometer 2

Fuel injector, cylinder 1, activation.

Fuel injector, cylinder 1, activation

Fuel injector, cylinder 2, activation

Fuel injector, cylinder 2, activation

Fuel injector, cylinder 3, activation

Fuel injector, cylinder 3, activation

Fuel injector, cylinder 4, activation

Fuel injector, cylinder 4, activation

Fuel injector, cylinder 5, activation

Fuel injector, cylinder 5, activation

Fuel injector, cylinder 6, activation

Fuel injector, cylinder 6, activation

Combustion misfires, several cylinders

Combustion misfires, several cylinders

Combustion misfires, several cylinders

Combustion misfires, several cylinders

Combustion misfires, cylinder 1

Combustion misfires, cylinder 1

Combustion misfires, cylinder 1

Combustion misfires, cylinder 2

Combustion misfires, cylinder 2

Combustion misfires, cylinder 2

Combustion misfires, cylinder 3

Combustion misfires, cylinder 3

Combustion misfires, cylinder 3

Combustion misfires, cylinder 4

Combustion misfires, cylinder 4

Combustion misfires, cylinder 4

Combustion misfires, cylinder 5

Combustion misfires, cylinder 5

Combustion misfires, cylinder 5.

Combustion misfires, cylinder 6

Combustion misfires, cylinder 6

Combustion misfires, cylinder 6

Misfire at low tank fill level

Knock-sensor signal 1

Knock-sensor signal 1

Knock-sensor signal 1

Crankshaft sensor, signal

Crankshaft sensor, signal

Camshaft sensor, inlet, signal

Camshaft sensor, inlet, signal

Camshaft sensor, inlet, synchronization

Ignition coil, cylinder 1

Ignition coil, cylinder 2

Ignition coil, cylinder 3

Ignition coil, cylinder 4

Ignition coil, cylinder 5

Ignition coil, cylinder 6

Camshaft sensor, exhaust, signal

Camshaft sensor, exhaust, signal

Camshaft sensor, exhaust, synchronization

Crankshaft sensor, tooth fault

Crankshaft sensor, gap fault

Irregular running, segment timing

Crankshaft sensor, synchronization

Catalytic-converter conversion

Catalytic-converter conversion

Catalytic-converter conversion 2

Catalytic-converter conversion 2

Tank-venting system, function

DMTL, minor leak

Tank-venting valve, activation

Tank-venting system, function

Tank cap

DMTL, superfine leak

Tank cap

Tank-venting valve, activation

Tank-venting valve, activation

Tank fill level, plausibility

No info.

No info.

Idle air control, engine speed

Idle air control, engine speed

Control module: internal fault, RAM

Control module: internal fault, RAM

DME master relay, activation

DME master relay, activation

No message from transmission control

Valvetronic, eccentric shaft sensor: guide

Valvetronic, eccentric shaft sensor: guide

Valvetronic, eccentric shaft sensor: reference

Valvetronic, eccentric shaft sensor: reference

Valvetronic, eccentric shaft sensor: plausibility

Valvetronic, eccentric shaft sensor: plausibility

Valvetronic, eccentric shaft sensor: power supply

Valvetronic, adaptation

Valvetronic, adaptation

Valvetronic, adjustment range

Valvetronic, eccentric shaft sensor: power supply

Valvetronic, adjustment range

Valvetronic, adjustment range

Valvetronic, eccentric shaft sensor: guide

Valvetronic, eccentric shaft sensor: reference

Valvetronic, monitoring, sluggish movement

Valvetronic, monitoring, sluggish movement

Valvetronic, actuator motor: plausibility

Valvetronic, internal fault

Valvetronic, actuator motor: activation

Valvetronic, actuator motor: activation

Valvetronic, actuator motor: activation

Valvetronic, actuator motor: power supply

Valvetronic, actuator motor: power supply

Valvetronic relay, activation

Valvetronic, power limitation

Valvetronic, position at new start: plausibility

Valvetronic, electrical overload protection

Valvetronic, thermal overload protection

Valvetronic, actuator motor: overload

Valvetronic, thermal overload protection: warning threshold

Valvetronic, thermal overload protection: warning threshold

Valvetronic, power limitation

Valvetronic, thermal overload protection: warning threshold

Differential-pressure sensor, intake manifold: plausibility

Differential-pressure sensor, intake manifold: plausibility

Throttle

DME, internal fault: monitoring, cruise control

Differential-pressure sensor, intake manifold: adaptation

Oxygen sensor before catalytic converter, line fault

Oxygen sensor before catalytic converter, line fault

Oxygen sensor before catalytic converter 2, line fault

Oxygen sensor before catalytic converter 2, line fault

Oxygen sensor behind catalytic converter, ageing

Oxygen sensor behind catalytic converter 2, ageing

Oxygen sensor behind catalytic converter, trim control

Oxygen sensor behind catalytic converter, trim control

Oxygen sensor behind catalytic converter 2, trim control

Oxygen sensor behind catalytic converter 2, trim control

Differential-pressure sensor, intake manifold: signal

Differential-pressure sensor, intake manifold: signal

Fuel pump

Fuel pump

Fuel pump

Fuel pump

Fuel pump, emergency shutoff

Camshaft sensor, inlet, gap loss

Firing, cylinder 1

Firing, cylinder 2

Firing, cylinder 3

Firing, cylinder 4

Firing, cylinder 5

Firing, cylinder 6

Camshaft sensor, exhaust, gap loss

Knock-sensor signal 2

Crankshaft sensor, segment adaptation

No info.

No info.

Cylinder injection cutout

Secondary-air pump relay, activation

Secondary-air pump relay, activation

Air-mass system

THROTTLE

Air-mass system

DMTL, heater: activation

Engine breather heating relay, activation

Engine breather heating relay, activation

Engine breather heating relay, activation

DMTL, heater: activation

DMTL, heater: activation

DMTL, system fault

DMTL, system fault

DMTL, system fault

DMTL, system fault

Secondary-air pump relay, activation

Variable intake system, self-diagnosis

Variable intake system 2, self-diagnosis

Variable intake system, plausibility

Variable intake system, plausibility

Variable intake system, servomotor: activation

Variable intake system, servomotor 2: activation

Variable intake system, servomotor: activation

Variable intake system, servomotor 2: activation

Variable intake system, servomotor: activation

Variable intake system, servomotor 2: activation

Button, Dynamic Driving Control (SPORT button), signal

Button, Dynamic Driving Control (SPORT button), signal

Crankshaft - exhaust camshaft, correlation

Crankshaft - inlet camshaft, correlation

No info.

No info.

Cruise control, switch, multifunction steering wheel

Cruise control, signal

Active cruise control, blocked for driving cycle

No message from LDM

Monitoring, terminal 15

Active cruise control, blocked for driving cycle

Monitoring, terminal 15

Cruise control, time limit of data transmission reached

No message from LDM

Monitoring, terminal 15

Monitoring, terminal 15

Power management, battery monitoring

Power management, battery monitoring

Power management, vehicle electrical system monitoring

Power management, vehicle electrical system monitoring

Power management, vehicle electrical system monitoring

Power management, closed-circuit current monitoring

No message from EGS, EGS 1

No message from SMG control module, SMG 1

No message from instrument cluster, instrument cluster 2

No message from instrument cluster, instrument cluster 3

No message from ASC/DSC, ASC 1

No message from ASC/DSC, ASC 3

No message from ASC/DSC, ASC 4

DME, internal fault: monitoring, hardware

Accelerator-pedal module, pedal-position sensor 1, voltage supply

Accelerator-pedal module, pedal-position sensor 2, voltage supply

Throttle-valve adaptation value

Throttle-valve adaptation value

Throttle valve, start check

Throttle valve, continuous adaptation

Throttle-valve actuator, activation

Throttle-valve actuator, sluggish movement

Throttle-valve actuator, jamming briefly

Throttle-valve actuator, jamming continuously

Throttle-valve adaptation value

No throttle-valve adaptation value

Throttle-valve adaptation value

Throttle valve, start check

Control module, internal fault: checksum

Control module, internal fault: checksum

Control module, internal fault: checksum

Control module, internal fault: RAM checksum

Control module, internal fault: knock sensor module

Control module, internal fault: multiple output stage module

DME, internal fault: monitoring, cruise control

DME, internal fault: monitoring, cruise control

Monitoring, air path

Monitoring, air path

DME, internal fault: monitoring, engine speed

DME, internal fault: monitoring, accelerator-pedal module

DME, internal fault: monitoring, idle air control

DME, internal fault: monitoring, idle air control

DME, internal fault: monitoring, external torque request

DME, internal fault: monitoring, external torque request

DME, internal fault: monitoring, external torque request

DME, internal fault: monitoring, nominal torque

DME, internal fault: monitoring, nominal torque

DME, internal fault: monitoring, nominal torque

DME, internal fault: monitoring, nominal torque

DME, internal fault: monitoring, actual torque

Monitoring engine torque limiting

DME, internal fault: monitoring, engine speed limitation

DME, internal fault: monitoring, engine speed limitation reset.

DME master relay, shift delay

No message from electric fuel pump

No message from SMG control module, SMG 1

No info.

No info.

Intake VANOS, activation

Intake VANOS, activation

Exhaust VANOS, activation

Exhaust VANOS, activation

Oxygen sensor before catalytic converter, trim control

Oxygen sensor before catalytic converter, trim control

Oxygen sensor before catalytic converter 2, trim control

Oxygen sensor before catalytic converter 2, trim control

Accelerator-pedal module, pedal-position sensor potentiometer, signal

Accelerator pedal module, pedal-position sensor, signal 1

Accelerator pedal module, pedal-position sensor, signal 1

Accelerator pedal module, pedal-position sensor, signal 2

Accelerator pedal module, pedal-position sensor, signal 2

Accelerator-pedal module, pedal-position sensor, plausibility between signal 1 and signal 2

Oxygen sensor before catalytic converter, system check

Oxygen sensor before catalytic converter, system check

Oxygen sensor before catalytic converter 2, system check

Oxygen sensor before catalytic converter 2, system check

Oxygen sensor before catalytic converter, line fault

Oxygen sensor before catalytic converter 2, line fault

Oxygen sensor behind catalytic converter, system check

Oxygen sensor behind catalytic converter, system check

Oxygen sensor behind catalytic converter 2, system check

Oxygen sensor behind catalytic converter 2, system check

Oxygen sensor before catalytic converter, overrun check

Oxygen sensor before catalytic converter 2, overrun check

DMTL leak diagnosis pump, activation

DMTL leak diagnosis pump, activation

DMTL leak diagnosis pump, activation

Oxygen sensor before catalytic converter, not connected

Oxygen sensor before catalytic converter 2, not connected

DMTL solenoid valve, activation

DMTL solenoid valve, activation

DMTL solenoid valve, activation

Oxygen sensor before catalytic converter, line fault

Oxygen sensor before catalytic converter 2, line fault.

Control module, internal fault: oxygen sensor

Control module, internal fault: oxygen sensor 2

Control module, internal fault: oxygen sensor

Control module, internal fault: oxygen sensor 2

Oxygen sensor heating before catalytic converter, function.

Oxygen sensor heating before catalytic converter 2, function

No message from SMG control module, SMG 1

No message from SAS control module, SAS

Firing, cylinder 4 DTC P1304. Ignition Monitoring Cylinder 4 Spark Duration Too Short (corresponding to approximately 5 sec. at idle), dual ignition off, secondary sparks off

No message from instrument cluster, instrument cluster 2

No message from instrument cluster, instrument cluster 3

No info.

No message from EGS, EGS 2

No message from EGS, EGS 2

No message from EGS, EGS 2

No message from SMG control module, SMG 1