Code result
P046A
Catalyst Temperature Sensor 1/2 Correlation
Moderate severity
What it means
Catalyst temperature sensors 1 and 2 on bank 1 disagree by more than the allowed tolerance over a drive cycle.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
One sensor drifts
highOne of the most commonly reported causes for this code — check this first.
Related help
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