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Diagnostic trouble code P2AA6 indicates: EGR Cooler Bypass Control Circuit Driver Current/Temperature Too High Bank 2. It was set by your vehicle's onboard diagnostics system and will typically keep the check engine light on until it's addressed.
P2AA6 is part of the EGR OFF group. These ECUs support EGR OFF, which switches it off:
Upload your ECU file and DTC Doctor will detect this code (and any others) automatically, then remove it for good — no dealer visit, no guesswork.
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