DTC C1035 & C1170: Stored In Electronic Stability Program Control Unit (Esp) (As Of 8/1/01 Up To 11/15/01)

Damage Code

54 553 90

Cause - Electronic transmission control ETC control unit.

NOTE: In individual cases it is possible for the ETC control module with part number 030 545 23 32 (EGS 52 Q01 or SW 14/01) to send erroneous data on the CAN-C bus after switching on the ignition.

The electronic stability program (ESP) receives data this data and then erroneously assumes that the steering angle sensor signal came from the steering tube module rather than the combined yaw rate/lateral acceleration sensor. However, since the steering tube module is not currently installed in model 203, the ESP control module does not receive any data and stores the DTC specified in the document.

Remedy

1 - Determine whether ESP MK25 system is installed on vehicle. You can recognize externally whether the new ESP MK25 system or the old ESP MK20 system is installed by proceeding as follows:
- One pressure sensor on master brake cylinder: ESP MK25 (new).
- Two pressure sensors on master brake cylinder: ESP MK20 (old).
A further recognition characteristic on the MK25 system is the new combined yaw rate/lateral acceleration sensor.
NOTE: Conversion from MK20 to MK25 was accomplished on approximately 8/2001, however, some preliminary vehicles were produced. It is therefore important to differentiate on the basis of the number of pressure sensors present on the master brake cylinder.
2 - Remove/install/replace ETC control module.
NOTE: Use ETC Q02 or SW 42/01.

CAUTION: Never remove/install/replace the ESP control module, steering angle sensor or combined yaw rate/lateral acceleration sensor.