P2373: Fuel Volume Regulator B Control Circuit High
Standardized SAE J2012 code · P23xx — Ignition system and misfire
What does P2373 mean?
Same as P2370 with the control line shorted to supply. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- High Control line shorted to battery or supply
- Low Connector pins corroded - high contact resistance
- Low Supply wire pinched against B+ source
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P2373 on the same make and model first.
P2373 in the community
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