What does code P1605 mean on Mazda vehicles?
The PCM reports a failure in the keep-alive memory (KAM) self-test.
OBD-II Code Mazda
P1605 — Mazda — Powertrain Control Module Keep Alive Memory Test Error
The PCM reports a failure in the keep-alive memory (KAM) self-test.
Common symptoms
- Check engine light
- loss of learned data
Possible causes
- PCM internal fault
- power supply issue
Initial recommendation
Check PCM power supply and replace PCM if necessary.
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 P1605 with your vehicle's actual symptoms for more complete diagnostic guidance.
Go to the app View more brands