Code result
P233B
Fuel Pressure Regulator C Control Circuit Low
Moderate severity
What it means
Same as P233A but with the control line shorted to ground - the ECU measures a low voltage that does not match the commanded duty 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
Control line shorted to ground
highOne of the most commonly reported causes for this code — check this first.
Regulator solenoid shorted internally
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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