SCC 002139.09 – CSM Message Missing

SCC 002139.09 (SCC 2139.09)

Code: 002139.09

Shortcode: 2139.09


This error code indicates that the SCC has failed to receive the wheel speed from the Cab Switch Module (CSM). This can result from communication issues, faulty wiring, or a malfunctioning CSM.


When this code is detected, the SCC functions will be degraded, affecting performance.


Inspect CSM Unit:

  • Verify that the Cab Switch Module (CSM) is functioning correctly. Check for any error codes on the CSM.

Check Communication Links:

  • Inspect the communication links between the SCC and CSM. Ensure all connections are secure and free from damage.

Inspect Wiring and Connectors:

  • Check all wiring and connectors for signs of damage, corrosion, or poor connections. Repair or replace as necessary.

Update Firmware and Software:

  • Ensure both the CSM and SCC have the latest firmware and software updates.

Consult Technical Support:

  • If the issue persists, contact technical support for further diagnostics and assistance.


Ensuring reliable communication between control units is critical for accurate wheel speed detection and equipment performance.

Control Units: John Deere

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