Passat V6-2.8L (ATQ) (2004)
Transmission Position Switch/Sensor: Testing and Inspection
Multi-Function Transmission Range (TR) Switch, Checking
Multi-Function Transmission Range (TR) Switch -F125-, Checking
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 connector test kit
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Wiring diagram
Test requirements
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Respective fuses must be OK
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Control Module with indicator unit in instrument panel insert -J285- must be OK.
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Battery voltage must be at least 11.5 volts.
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Selector lever must be in -P- position.
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Ground (GND) connections to transmission must be OK.
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All electrical consumers such as, lights and rear window defroster must be switched off.
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Parking brake must be engaged or else daylight driving lights will be switched on.
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Ignition switched off.
Function test
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Switch ignition on.
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Depress brake pedal and maintain depressed.
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Shift into all selector lever positions.
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Selector lever position must correspond to display of Control Module with indicator unit in instrument panel insert -J285-
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Switch ignition off.
If selector lever position does not match with display:
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Disconnect harness connector -2- to Multi-Function Transmission Range (TR) Switch -F125- (-1-).
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 Transmission Control Module (TCM). Diagnostic mode 4: Reset/erase diagnostic data. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/With Generic Scan Tool/Diagnostic
Mode 4: Reset/Erase Diagnostic Data
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Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and
Readiness Codes
If harness connector is OK:
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Check wires to Transmission Control Module (TCM) according to wiring diagram.
Checking wires to Transmission Control Module (TCM)
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Connect test box to Transmission Control Module (TCM) wiring harness. connect test box for wiring test. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/Test
Box, Connecting For Wiring Test
Vehicles with transmission codes DRN, DRD (hydraulic control "E17")
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Check wires between test box and 8-pin connector to Transmission Control Module (TCM) for open circuit according to wiring diagram.