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Code result

U0297

Lost Communication with Hybrid Powertrain Control Module

High severity

What it means

The hybrid CAN has lost the hybrid powertrain control module. Hybrid operation is disabled and the vehicle defaults to combustion-only mode if available.

Is it safe to drive?

No — stop driving

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.

Most likely causes

  • Hybrid module unpowered

    high

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

  • Gateway module routing CAN messages incorrectly

    low

    Less common, but worth ruling out after the more likely causes.

  • CAN terminating resistor (120 Ω) drifted out of spec

    low

    Less common, but worth ruling out after the more likely causes.

Related help

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