Power Seat With Memory - Troubleshooting: Overview

Group: 72

Number: 92-02

Date: April 30, 1992



Subject:
Power Seat with Memory, Troubleshooting


Model(s):
100 CS, S4

1992 m.y.



(Supercedes Technical Bulletin 91-05, dated December 31, 1991)


Power seat with memory, troubleshooting

Note

^ always refer to appropriate wiring diagram

^ leave driver's door open when checking operation of the driver's seat memory function

^ if defective components are found when carrying out the following test steps, the wiring to these components must also be checked

^ if the battery is disconnected, programmed seat positions remain in memory

Programmed seat positions can only be erased by the input of new seat positions.

^ actuators are mounted on adjustment motors

^ check all actuators before replacing a defective actuator

^ when checking the sender unit for backrest adjustment, do not recline the backrest more than 350

Test conditions

^ battery OK

^ fuse 8 OK

^ circuit breaker S44 for driver's seat, located in position B1 on auxiliary relay panel 1 OK

^ circuit breaker S80 for passenger seat, located in position B2 on auxiliary relay panel 1 OK

Tools required

^ digital multimeter Fluke 83 (US 1119)






^ Connector Test Kit VW 1594


CAUTION

DO NOT damage, enlarge or bend connector terminals or cavities by forcing probes into them when performing electrical checks. Use Connector Test Kit VW 1594 to make the necessary electrical connections.


CAUTION

Some color coded plugs to power seat control unit are interchangeable. Tag plugs for proper identification.