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ABS/TCS - Warning Lamp ON/Multiple DTC's Set

ESP LAMP ON

Topic Number Li42.45-P-047928

Version 1

Design Group 42.45 Electronic Stability Program (ESP), Stability Control (SR)

Date 09-22-2009

Validity Model 163.113/128/154/157/175 # A from 371935 up to 442083 with ESP control unit MK25

Reason for change WIS references revised and reference to AF deleated/Supercedes DTB T-B-42.45/42

Reason for block

Complaint:

ESP lamp on.

Cause:

Contact fault at connection for ESP control unit MK25 (N47-5).

The transition resistence may be increased because of an oxidation layer on the contact connectors in the plug connection to the ESP control unit.

Remedy:

Do not replace the ESP control unit.

1. Repair the connection of the wiring harness at the ESP control unit MK25 (SM42.45-P-0001GH "Repair wiring harness coupling at ESP control unit")

2. If fault codes are ACTIVE, perform the diagnostic test on the brake pressure sensor (B34/2) and brake booster piston position sensor (A7/7b1) using Star Diagnosis.

3. If faults in the brake pressure sensor are found, replace the brake pressure sensor (AR42.45-P-081GH).

4. If faults in the brake booster piston position sensor are found, replace the brake booster piston position sensor (AR42.31-P-6002GI).

*Sufficient for 50 cars, Submit as Local Purchase FAB00022,l Qty. 1, handling is included





Symptoms








Control unit/fault code





Parts





Work units





WIS-References





Validity