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P0C6D

Generator Position Sensor Circuit B Circuit Intermittent/Erratic

The generator position sensor channel B reports a circuit intermittent/erratic fault. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.

  • Check engine light: Yes
  • Emissions related: No
  • Repair difficulty: hard

Common causes

Ordered by how often each turns out to be the cause.

  • Connector not seatedCommon
  • Noisy ground referencePossible
  • Connector with intermittent contact under vibrationLess likely

Parts involved

  • Generator Position Sensor B
  • Wiring Harness
  • Hybrid Control Module

P0C6D is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.