All codes/P0EC6

P0EC6

A/C Refrigerant Temperature Sensor A Circuit High

High severity

The ECM detects a high fault on the a/c refrigerant temperature sensor a circuit. Reading cannot be used reliably for control.

The ECM detects a high fault on the a/c refrigerant temperature sensor a circuit. Reading cannot be used reliably for control.

Common causes

  • Signal wire shorted to B+

    One of the most commonly reported causes for this code — check this first.

    high

    Typical part cost: $220-1650

  • Open sensor

    A plausible cause — test and verify before replacing parts.

    medium

    Typical part cost: $220-1650

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P0EC6 mean?

P0EC6 means "A/C Refrigerant Temperature Sensor A Circuit High". It is a generic OBD-II code that points to a fault in the hybrid / ev powertrain.

What are the most common causes of P0EC6?

signal wire shorted to b+; open sensor; connector pins corroded - high contact resistance — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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