Volkswagen Corrado (1993 year). Manual - part 116

DEFOGGER - REAR WINDOW 

END OF ARTICLE

DOOR LOCKS - POWER 

         1993 ACCESSORIES & EQUIPMENT
         Volkswagen Power Door Locks

         Volkswagen;  Corrado SLC, Passat

         DESCRIPTION & OPERATION

         Power locks are an electronically controlled, vacuum operated
system. Components include bi-pressure pump, tubing and an activator
for each door. See Fig. 1, 2 or 3.
The power lock system operates from either passenger or driver's door
lock. If the key is inserted in either door or trunk lock and held in
the unlock position, all locks will be operated simultaneously. Power
lock system will not operate on door(s) or trunk lid if left
unlatched.

Fig. 1:  Power Door Lock System Vacuum Diagram &
         Component Locator (Corrado SLC)
Courtesy of Volkswagen United States, Inc.

DOOR LOCKS - POWER 

Fig. 3:  Power Door Lock System Vacuum Diagram &
         Component Locator (Passat Wagon)
Courtesy of Volkswagen United States, Inc.

DOOR LOCKS - POWER 

         SYSTEM DOES NOT OPERATE

         1) Power & Ground Check
         Obtain radio security code. Disconnect battery cable
terminals. Disconnect control module 12-pin connector. Connect
negative lead to control module wiring harness connector terminal No.
"3". See Fig. 4. Connect positive voltmeter lead to terminals No. "1".
If voltage is present, go to next step. If voltage is not present,
repair open circuit.

Fig. 4:  Identifying Control Module Wiring Harness Connector Terminals
Courtesy of Audi of America, Inc.

         2) Door Lock Switch Check (Driver's Door)
         Connect negative lead to control module wiring harness
connector terminal No. "3". Connect positive voltmeter lead to
terminals No. "7". Insert key in driver's door and turn to lock
position. If voltage is present, go to next step. If voltage is not
present, repair circuit or switch as necessary.
         3) Door Lock Switch Check (Passenger's Door)
         Connect negative lead to control module wiring harness
connector terminal No. "3". Connect positive voltmeter lead to
terminals No. 10. Insert key in passenger's door and turn to unlock
position. If voltage is present, go to next step. If voltage is not
present, repair circuit or switch as necessary.
         4) Activator Check
         Reconnect control module 12-pin connector. Open trunk lid.
Close all doors and lock with key. Disconnect control module 12-pin
connector. Connect ohmmeter negative lead to control module wiring
harness connector terminal No. "3". Connect positive lead to terminal
No. "4". If continuity is present, go to next step. If continuity is
not present, repair circuit or activator as necessary.
         5) Reconnect control module 12-pin connector. Open trunk lid.
Unlock all doors with key. Disconnect control module 12-pin connector.
Connect voltmeter negative lead to control module wiring harness
connector terminal No. "3". Connect positive lead to terminal No. "4".
If voltage is present, replace bi-pressure pump and control module. If
voltage is not present, repair circuit or activator as necessary.