Code result
P2AE7
Intake Air O2 Sensor Negative Current Control Circuit Low Bank 1
Moderate severity
What it means
The negative pump current control of the intake air oxygen sensor on bank 1 reports a circuit low condition. Wide-band lambda regulation on the intake side is impaired.
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
Pump current wire shorted to ground
highOne of the most commonly reported causes for this code — check this first.
Internal short in pump cell
mediumA plausible cause — test and verify before replacing parts.
Connector pins corroded - high contact resistance
lowLess common, but worth ruling out after the more likely causes.
Related help
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