Rabbit L5-2.5L (BGP) (2006)
Vehicle Speed Sensor: Testing and Inspection
Speed Signal, Checking
Test requirement
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Function and display of speedometer OK.
CAUTION: To reduce the risk of accident during road tests, always observe safety precautions.
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Connect the scan tool.
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Start the engine and let run at idle.
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Select "Diagnostic mode 1: Obtain data" .
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Select the measured value "PID 13: Vehicle speed".
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Perform a road test, and have the 2nd person observe the indication on the display.
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Check the specified value of the vehicle speed:
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End the diagnosis and switch ignition off.
If no speed is displayed:
The speed signal is transferred from the Engine Control Module (ECM) J623 to the instrument cluster via wire connection or via CAN-Bus, depending
on version.
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Check the wiring connections.
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Check the terminal resistance for the CAN-Bus. See: Computers and Control Systems/Information Bus/Testing and Inspection
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic Mode 03:
Interrogating Fault Memory
2. If necessary, erase the DTC memory. See: Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Diagnostic
Mode 04: Reset/Delete Diagnostic Data
3. If the DTC memory was erased, generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
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End of diagnosis.