Passat Sedan 4Motion V6-2.8L (ATQ) (2003)
Engine Control Module: Service and Repair
Housing For Engine Control Module In Plenum
Housing For Control Modules In Plenum, Removing And Installing
CAUTION!
Before beginning repairs on the electrical system :
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Obtain the anti-theft radio security code.
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Switch the ignition off.
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Disconnect the battery Ground (GND) strap.
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After reconnecting battery, re-code and check operation of anti-theft radio.
Removing
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Remove cap in windshield cowl panel under the left wiper arm (move wiper arm if necessary).
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Remove screw for housing cover underneath cowl panel as illustrated.
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Remove remaining screws -arrows- and take off housing cover.
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Remove Engine Control Module (ECM). (If necessary, remove eight position auxiliary relay panel and fuse panel).
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Disconnect all electrical connectors at connector station.
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Slide rubber grommet and wiring harness for engine controls up and out of slot in housing.
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Remove nuts -A-, 4 Nm (35 in lb).
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Push housing to rear (into plenum) to disengage from retainer bracket -B- and remove housing.
Installing
Installation is in reverse order of removal.
Installation Notes: