Power Locking System - Inoperative

9220audi03

57-89-T04
May 89


5000 All
M.Y. 1988

100/200 All
M.Y. 1989


Power Locking System - Inoperative


Cause:
A. Electrical connectors on front door control valve corroded by humidity.

B. Bi-pressure pump inoperative.

Production:
A. Connectors with improved seal. Rubber grommets with individual wire.

As of: June 1988
VIN: 44_KN006429

B. Bi-pressure pump with encapsulated relay and additional diode for overvoltage protection.

As of: October 1988
VIN: 44_KN028447

Service:
A. Replace parts:
Control Valve P/N 893 862 153
Connector Housing P/N 443 906 233
Rubber Grommet P/N 443 906 102B
Flat Connector P/N N 903 352 03
(spring loaded)

B. Replace bi-pressure pump, new P/N 443 862 257H (VDO).