TT Coupe L4-1.8L Turbo (AWP) (2005)
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Wiring to TCM, Checking
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Connect test box to control module wiring harness. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Component Tests and General Diagnostics/Test Box, Connecting For Wiring Test
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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.
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Terminal 1 + Socket 45
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Terminal 2 + Socket 8
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Wiring resistance: max. 1.5 Ohms
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Also check wires for short circuit to each other.
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Specification: Infinite Ohms
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If no fault is detected in the wiring:
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Replace Transmission Control Module (TCM) -J217-.