Jetta Sedan L5-2.5L (BGP) (2005)
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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Repair any damage found to the electrical harness connector.
If the electrical harness connector is not OK:
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Repair the malfunction.
If the electrical harness connector is OK:
Checking voltage
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Switch the ignition on.
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Using a multimeter, check the Multi-Function Transmission Range (TR) Switch (F125) electrical harness connector terminal 10 to Ground (GND)
for voltage.
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Switch the ignition off.
Specified value, Battery voltage.
If the specified value was not obtained:
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Check the wiring from the Multi-Function Transmission Range (TR) Switch (F125) electrical harness connector terminal 10 to the Power Supply
Relay (terminal 15) (J329) socket 2/87 for an open circuit, short to ground (GND) or a short to Battery (+).
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box. Install the Adapter F/VAG1598 (68 Pin) (VAG1598/22)
If the manufacturers test box is not being used. Perform the following step.
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Remove the Transmission Control Module (TCM) (J217)
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Using a multimeter, check the Multi-Function Transmission Range (TR) Switch (F125) electrical harness connector terminals to the Transmission
Control Module (TCM) (J217) electrical harness connector T52 terminals for resistance.