Code result
P2246
O2 Sensor Reference Voltage Circuit High
High severity
What it means
The reference voltage on the bank 1, sensor 1 wide-band oxygen sensor reads above the upper threshold. Common with a short to a positive supply or a corroded connector with leakage current.
Is it safe to drive?
No — stop driving
This code points to a problem that can cause damage or affect safety. Avoid driving and have the vehicle diagnosed promptly.
Most likely causes
Reference line shorted to positive
highOne of the most commonly reported causes for this code — check this first.
Connector corroded with leakage
mediumA plausible cause — test and verify before replacing parts.
Supply wire pinched against B+ source
lowLess common, but worth ruling out after the more likely causes.
Related help
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