S6 Quattro Sedan V10-5.2L (BXA) (2007)
Control Module: Testing and Inspection
Transmission Control Module Voltage Supply, Checking
‹› The Transmission Control Module (TCM) (J217) is a component of the Mechatronic unit in the transmission and cannot be serviced individually.
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Requirements
‹› The Transmission Control Module (TCM) (J217) fuses 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 sequence
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Disconnect the Transmission Control Module (TCM) (J217) electrical harness connector - direction of the arrow -.
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Check the electrical harness connector for damage, contact corrosion, or ingress of water.
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 Power Supply Relay (terminal 15) (J329) socket 2/87 to Ground (GND).
Specified value: battery voltage.