TT Coupe L4-1.8L Turbo (AWP) (2005)
Transmission Position Switch/Sensor: Testing and Inspection
Multi-Function Transmission Range Switch, Checking
Recommended Special Tools, Workshop Equipment, Testers, Measuring Instruments and Auxiliary Items
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V.A.G 1526 portable multimeter or V.A.G 1715 multimeter
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Adapter set V. A. G 1594
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Wiring diagram
Test Conditions
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Respective fuses must be OK
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Instrument Cluster Control Module -J285- must be OK.
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Battery voltage must be at least 11.5 V.
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All electrical consumers such as, for example, lights and rear window defroster must be switched off.
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The parking brake must be applied, otherwise the daytime running lights are switched on.
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Selector lever must be in "P" position.
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The Ground (GND) connections to transmission must be OK.
Function Test
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Switch ignition on.
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Actuate and hold brake pedal.
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Shift through all selector lever positions.
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Selector lever position must correspond to display of measuring value blocks in Instrument Cluster Control Module -J285-.
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Switch off ignition.
If selector lever position does not correspond to display of Instrument Cluster Control Module -J285-:
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Disconnect connector - 2 - from Multi-Function Transmission Range (TR) Switch -F125-.
Observe safety precautions.
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Check harness connector for contact corrosion and ingress of water.
If harness connector is not OK:
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Repair malfunction and repeat test sequence.
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Erase DTC memory of TCM. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 04 - Erase DTC Memory
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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles
and Readiness Codes/Generate Readiness Code
If harness connector is OK:
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Check lines to TCM according to wiring diagram.
Check Wire Connections to TCM
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Connect test box to TCM wiring harness. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Component Tests
and General Diagnostics/Test Box, Connecting For Wiring Test
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Check wire connections between test box and 10-pin connector to TCM for open circuit, according to wiring diagram.