PCM Keep Alive Memory Test Error Conditions
Table of contents
P1605 MAZDA Possible Causes
- Low battery charge
- Faulty Powertrain Control Module (PCM)
- Powertrain Control Module harness is open or shorted
- Powertrain Control Module circuit poor electrical connection
How do I fix code P1605 MAZDA?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the P1605 MAZDA code
The cost of diagnosing the P1605 MAZDA code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1605 MAZDA Description
With the Key On Engine Off (KOEO) the Diagnostic Trouble Code (DTC) P1605 indicates Powertrain Control Module (PCM) has experienced power interrupt in the keep-alive power circuit. If keep-alive power is interrupted to PCM, for example when the battery is disconnected, DTC can be output on the first power-up.