P26EB: Alternative Fuel Control Module System Voltage
Standardized SAE J2012 code · P26xx — Computer and output circuits
What does P26EB mean?
The alternative fuel control module reports a system voltage out of operating range. CNG, LPG, or hydrogen fuelling can be disabled until voltage is in spec.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Common causes
- Medium Weak battery sags voltage under load
- Medium Alternator output out of regulation
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P26EB on the same make and model first.
P26EB in the community
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