DTCS C1035 And C1037 In Electronic Stability Program (Esp) Control Module (42.45/19A)

Publication date: 2003-07-24
Reference number: 42.45/19A
Supersedes refnos: 27.19/35A

DTCS C1035 AND C1037 IN ELECTRONIC STABILITY PROGRAM (ESP) CONTROL MODULE

TECHNICAL SERVICE BULLETIN

Reference Number(s): P-B-27.19/35a / P-B-42.45/19a, Date of Issue: July 24, 2003

MERCEDES-BENZ:	Models 203 with Automatic 722.6xx As of November 15, 2001 Production
GROUP:	27 - Automatic Transmission / 42 - Brakes, Hydraulics

Superceded Bulletin(s): P-B-27.19/35 / P-B-42.45/19, Date of Issue: March 6, 2002

NOTE: This bulletin supersedes: P-B-27.19/35 / P-B-42.45/19 dated March 6, 2002.

SUBJECT

DTCs C1035 and C1037 in Electronic Stability Program (ESP) Control Module

SERVICE INFORMATION

On Model 203 vehicles with the above transmission produced as of November 15, 2001, if you encounter instances of the above DTCs it is possible that the Electronic Transmission Control module with part number 030 545 23 32 (ETC 52 Q01 or SW 14/01) transmitted erroneous data onto the CAN BUS C to ESP. The Electronic Stability Program control module (ESP) receives the data and then erroneously assumes that the signal from the steering angle sensor was transmitted via the jacket tube module and not via the combined rotation rate/lateral acceleration sensor. Since the jacket tube module is not presently installed in model 203, the ESP control module does not receive any actual data from it and stores the specified DTC's.

Preliminary step:

ESP system identification

Determine which ESP system is installed in the vehicle. Conversion from MK20 to MK25 in production was accomplished on approx. 08/2001, however, some preliminary vehicles were produced. The following can be utilized to determine whether the new ESP MK25 system or the previous ESP MK20 system is installed:

NEW MK25 ESP:
A single pressure sensor on the master brake cylinder:
The new combined yaw rate control module/lateral acceleration sensor.

PREVIOUS MK20 ESP:
Two pressure sensors on the master brake cylinder
Individual yaw and lateral acceleration sensor.

REMEDY FOR MK25 ONLY:

Replace Electronic Transmission Control module (ETC).

Use EGS Q02 or SW 42/01. Never replace ESP control module, steering angle sensor or combined rotation rate/lateral acceleration sensor.

PARTS INFORMATION

Qty.

Part Name

Part Number

ETS Control Module (order with VIN)

032 545 12 32 ⁽¹⁾

⁽¹⁾	Parts are in a critical supply situation and will be limited, please see the PAC weekly status report on parts availability status and delivery expectations. This report is located on the PAC website.

IN CASE OF WARRANTY

Operation:

Short test, perform (54-1011)
Control module - for electronic transmission (722.6), replace (27-2351)

WARRANTY INFORMATION

Damage Code	Operation Number	Labor Time (hrs.)	Model Indicator (s)
54553 90	54 1011	0.3 hrs.	00
54553 90	27 2351	0.3 hrs.	P0