Jetta Sedan L5-2.5L (BGP) (2005)
Control Module: Testing and Inspection
Transmission Control Module Voltage Supply, Checking
Transmission Control Module Voltage Supply, Checking
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Requirements
‹› Fuse (SA6) OK.
‹› Fuse (SB28) OK.
‹› Fuse (SC14) OK.
‹› The battery voltage must be at least 12.5 volts.
‹› The Ground (GND) connections at the transmission OK.
‹› The parking brake engaged.
‹› The selector lever of automatic transmission in position "P".
‹› All electrical consumers switched off.
‹› The ignition switched off.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to --> [ Engine Control Module, Replacing ] .
Start diagnosis
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Remove the Transmission Control Module (TCM) (J217). Refer to --> [ Transmission Control Module, Replacing ] .
Checking voltage
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Switch the ignition on.
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Using a Multimeter, check the Transmission Control Module (TCM) (J217) electrical harness connector T52 terminals 27 and 28 to Ground
(GND) for voltage.
Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the wiring from the Transmission Control Module (TCM) (J217) electrical harness connector T52 terminals 27 and 28 to the Power Supply
Relay (terminal 15) (J329) socket 2/87 for an open circuit or a short circuit.
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If necessary, repair the faulty wiring connection.
If the specified value was obtained:
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Using a Multimeter, check the Transmission Control Module (TCM) (J217) electrical harness connector T52 terminal 3 to Ground (GND).
Specified value: battery voltage.
If the specified value was obtained: