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Re: how to understand the line of diagnosis code
Posted to Technical Discussion Forum on 6/26/2024 4 Replies

Hi Wayne,

Looks like you have a "coolant pump A circuit or performance" code. On that vehicle it might be an electric auxiliary pump, controlled by the PCM

Is this a hybrid vehicle, and is it low on coolant? Do any of your scanners let you command the pump... Login to read more.

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