Mazda
PCM battery supply voltage low. Can cause stalling, no-start or many other codes.
P2507 fault code: what it means
P2507: PCM battery supply voltage low. Can cause stalling, no-start or many other codes.
Usual causes, most likely first
- weak battery
- poor battery terminals or earths
- charging system fault
P2507 by make
What the repair usually costs
- 12 V battery replace, standard flooded (small / medium car)NZ$190–NZ$330 · A$170–A$310
- 12 V battery replace, standard flooded (SUV / ute / 4WD)NZ$290–NZ$500 · A$270–A$460
- Alternator replace (small / medium car, petrol)NZ$510–NZ$1,020 · A$480–A$1,000
- Crankshaft or camshaft position sensor replaceNZ$100–NZ$590 · A$100–A$580
Not sure what P2507 means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.