A8 Quattro Sedan V8-4.2L (AUX) (2001)
Control Module: Testing and Inspection
NOTE: This check is to be conducted if either the output Diagnostic Test Mode (DTM) or electrical testing indicates a malfunction in the wiring
between the transmission and the Transmission Control Module (TCM) -J217-.
Test Requirements
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Ignition switched OFF
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Test box VAG 1598/20, or equivalent, connected to 88-pin transmission wiring harness connector
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Remove noise insulation.
Checking Wiring Connection To 16-pin Connector On Transmission
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Unlock bayonet lock -4- of 16-pin connector to transmission by turning it (remove bracket -1- for noise insulation if necessary).
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Check wiring connections for continuity (using multimeter) between terminals of 16-pin connector and sockets of test box VAG 1598, using the
following connector pin specification table.