PCM Keep Alive Memory Test Failure
2016-2016 Ford Focus Electric Motor 🇫🇷
Description
The PCM Keep Alive Memory self-test has failed. The PCM cannot properly store or retrieve adaptive learning values from its KAM.
Symptoms
- Check Engine Light
- PCM defaults to base calibration
- Rough idle initially
- Harsh transmission shifts
Common Causes
- KAM circuit voltage issue
- Faulty KAM fuse or relay
- PCM internal failure
- Battery cable issue
Diagnostic Steps
- Check KAM fuse and relay
- Test KAM circuit voltage at PCM connector
- Check battery and alternator
- Clear code and retest — if recurring, suspect PCM failure
Repair Notes
Check KAM circuit power supply. Replace fuse if blown. If KAM circuit is OK, PCM may need replacement.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P1605 on Other Vehicles
Common Questions
What does code P1605 mean on a 2016-2016 Ford Focus?
P1605 stands for "PCM Keep Alive Memory Test Failure". The PCM Keep Alive Memory self-test has failed. The PCM cannot properly store or retrieve adaptive learning values from its KAM.
What are the symptoms of P1605 on a Ford Focus?
Common symptoms of P1605 include: Check Engine Light, PCM defaults to base calibration, Rough idle initially, Harsh transmission shifts.
What causes P1605 on a 2016-2016 Ford Focus?
Common causes of P1605 include: KAM circuit voltage issue, Faulty KAM fuse or relay, PCM internal failure, Battery cable issue.
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