What does code P1794 mean on Mazda vehicles?
The PCM detects a fault in the direct battery power supply circuit.
OBD-II Code Mazda
P1794 — Mazda — Powertrain Control Module Battery Direct Power Circuit
The PCM detects a fault in the direct battery power supply circuit.
Common symptoms
- No start condition
- engine stalling
Possible causes
- Battery feed issue
- blown fuse
- wiring fault
Initial recommendation
Check battery direct power feed, fuses and wiring to PCM.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Mazda code P1794 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands