Fault Code P0609
Code meaning, symptoms, possible causes, part number, and estimated cost.
P0609
Control Module VSS Output 'B' Malfunction
Code P0609 indicates a malfunction in the Vehicle Speed Sensor (VSS) output 'B' from the main control module (PCM/ECM). Similar to code P0608, this signal is also crucial for many vehicle systems. Some systems may have two VSS outputs (A and B) for redundancy or for different modules. A malfunction in this output can cause these systems to function improperly.
Part Details
Part Name
Powertrain Control Module (PCM) / VSS Wiring
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪400 - ₪1800
Engine Location
In the engine compartment (PCM) / Along the chassis (wiring)
Symptoms
- Check Engine Light on
- Speedometer not working or showing incorrect readings
- Cruise control inoperative
- Gears not shifting properly
- ABS/ESP system issues
Possible Causes
- 1Internal VSS output 'B' fault in the control module (PCM/ECM)
- 2Damaged, shorted, or open wiring in the VSS output 'B' circuit
- 3Loose connections or corrosion in connectors
- 4Faulty wheel speed sensor (less common as a direct cause for this code, more of an indirect cause)
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