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