DOOR LOCKS - POWER
Door Lock System Does Not Operate
Locate vacuum hose junction. See Fig. 1, 2 or 3. Individually
remove vacuum hose from junction box. Plug junction box port. If door
lock system operates, repair vacuum in hose. If door lock system does
not operate, repeat procedure for all other vacuum circuit at junction
box.
TESTING
SYSTEM TEST
Ensure vehicle battery is fully charged, fuses are okay and
no leaks are present in vacuum system. When activated, bi-pressure
should operate longer than 5 seconds and then pulse.
CONTROL MODULE TEST
Perform all procedures under TROUBLESHOOTING. If system still
does not perform correctly, replace control module.
REMOVAL & INSTALLATION
CAUTION: When battery is disconnected, vehicle computer and memory
systems may lose memory data. Driveability problems may
exist until computer systems have completed a relearn
cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL
INFORMATION before disconnecting battery.
BI-PRESSURE PUMP
Removal & Installation
Remove right rear luggage trim. Remove bi-pressure pump
bracket and insulation. Remove bi-pressure pump. See Fig. 5. To
install, reverse removal procedure.
Fig. 5: Locating Bi-Pressure Pump
(Corrado SLC Is Shown; Passat Is Similar)
Courtesy of Volkswagen United States, Inc.