A6 V6-3.0L (AVK) (2004)
Engine Speed Sensor: Testing and Inspection
With Manufacturer's Scan Tool
Engine Speed Signal, Checking
Vehicles with multitronic 01J:
NOTE: The engine speed signal is output at terminal 37 of the engine control module only in vehicles with multitronic 01J.
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Connect test box VAG 1598/31 to wiring harness for engine control module; do not connect engine control module. See: Testing and
Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Manufacturer's Scan Tool/Scan Tool Connecting and Initial Checks/Wiring
and Component Testing Using VAG1598/31 Test Box
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Check for open circuit and short to positive or Ground in following wiring connections:
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Test box VAG 1598/31 - Socket 37
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Repair any open/short circuit as necessary.
If no wiring malfunction is detected:
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Check CAN bus. See: Information Bus/Testing and Inspection/Component Tests and General Diagnostics