Volkswagen Passat 1995 Official Factory Repair Manual page 1291

Components of engine, checking
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If the complete throttle valve control module is
current-less (e.g. connector disconnected) the
throttle valve moves into a particular, specified
mechanical position, which signals an increased
idle speed with an engine at operating
temperature.
If only the Throttle Position (TP) Actuator -V60- is
current-less, the throttle valve also moves into
the specified mechanical position (emergency
running gap), however, since Closed Throttle
Position (CTP) Switch -F60- can still be
recognized, an "almost normal idle RPM" is
reached via the respective ignition angle
retardation.
If the Engine Control Module (ECM) detects a
malfunction at Throttle Position (TP) Sensor -
G69-, Throttle Position (TP) Actuator -V60- is
switched current-less by the Engine Control
Module (ECM) and the throttle valve moves into
the specified mechanical position (emergency
running gap) again.
Function test
- Connect diagnostic tester
- Switch ignition on.
- Under address word 33, select "Diagnostic
mode 1: Checking measured values."
- Select the measuring value "PID 17: Throttle
valve position (absolute)."
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Page ST-8 .
6/12/2004