P0C0B – Drive Motor ‘1’ Inverter Positive Voltage Circuit

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P0C0B Possible Causes

  • Reprogram the inverter module assembly (PIM)
  • Faulty power inverter module (PIM) assembly
  • The inverter module assembly (PIM) harness is open or shorted
  • Poor electrical connection of the inverter module assembly (PIM) circuit

What Does It Mean?

How to Fix Code P0C0B

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0C0B Possible Symptoms

Engine light on (or service engine soon warning light)

P0C0B Meaning

This is a detection of an internal fault in the generator power inverter module (PIM) assembly of the drive motor. The PIM monitors the drive motor “1” inverter. The ECM sets the OBDII code when the drive motor “1” inverter does not meet factory specifications. This fault is handled inside the PIM and no external circuits are involved.

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