Defect Code 02

Defect Code 02:

Explanation:

Defect on the connection links (interface) to EML (DKV, DKE, DKR signal) or faulty signals for the ignition timing or torque cut~ut.

Defect on the signal line for ignition timing or for preventing torque cut- out to the DME control units (MSR mode) or the function "preventing torque cut~ut" faulty in one of the DME control units.

Defect detection:

This defect can only be detected in MSR mode. The ASC sends a DKE signal to the EML which consequently increases the throttle angle. At the same time, the DML checks whether the injection signal from the DME control units does not revert to torque cut-out. If torque cut-out is detected by the EML, it switches oft the interface to the ASC.

Possible causes:

Short or break on one of the lines to the EML (DKV, DKE, DKR) Fault during synchronization with the EML control unit Short or break on the signal line for ignition timing or for preventing torque cut-out to the DME control units

Troubleshooting:

Switch off ignition and detach control unit connector.

Check DKV, DKR, DKE line from ABS/ASC Pin 43, 46, 48 to the EML Connect control unit and switch on ignition.

Measure frequency of the DKV, DKR, DKE signal with <-M-> , nominal value approx. 100 Hz. (Pulse width-modulated signal)

Switch oft ignition and detach control unit connector.

Check signal line for ignition timing or for preventing the torque cut-out Pin 47 to the DME control units.

If necessary, repair defective line.

If no defect can be found, clear defect code memory.