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P0609

P0609 - Control Module VSS Output B Malfunction

Bosch · OBD1000

What does P0609 mean?

This code indicates a malfunction in the Vehicle Speed Sensor (VSS) output signal 'B' from the control module. Similar to P0608, but for a different output channel.

Common Causes

  • Faulty VSS output circuit 'B' in the control module
  • Wiring problems related to VSS output B
  • Internal control module defect

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Examine wiring related to VSS output B.

  2. 2

    Verify the VSS sensor is functioning correctly.

  3. 3

    Test the control module's VSS output B signal.

  4. 4

    Professional diagnostic assistance may be needed.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

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Source: OBD1000
Open Manual (Page 21)Search more codes in this manual