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What Does P0652 Code Mean?

OBD-II Code P0652 is defined as a Sensor Reference Voltage "B" Circuit Low

The engine control module (PCM) sends out a 5 volt reference signal to all applicable engine sensors. If the PCM detects an issue with this signal, it will set code P0652.

P0652 Symptoms

  • Engine may not start

Common Problems That Trigger the P0652 Code

  • Engine sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issue
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