P1605
PCM Keep Alive Memory Test Failure
2012-2018 Ford Focus Electric Electric Motor 🇨🇦
Moderate SeverityPowertrain
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
P1600PCM Battery Direct Power CircuitP1600PCM Battery Direct Power CircuitP1600Loss of KAM Power — Open CircuitP1600PCM Battery Direct Power CircuitP1600PCM Battery Direct Power CircuitP1600PCM Battery Direct Power CircuitP1600PCM Battery Direct Power CircuitP1600ECM Battery Backup CircuitP1600PCM Battery Direct Power CircuitP1600Loss of KAM Power Circuit OpenP1600Loss of KAM Power — Open CircuitP1600ECM Battery Backup CircuitP1600PCM Battery Direct Power CircuitP1600ECM Battery Backup CircuitP1600Loss of KAM Power — Open CircuitP1633ECM Malfunction ETCS CircuitP1633Keep Alive Power Voltage Too LowP1633Keep Alive Power Voltage Too LowP1633Keep Alive Power Voltage Too LowP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633Ignition Supply Power Circuit Low VoltageP1633ECM Malfunction ETCS CircuitP1633KAM Voltage Too LowP1633ECM Malfunction ETCS Circuit
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 2012-2018 Ford Focus Electric?
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 Electric?
Common symptoms of P1605 include: Check Engine Light, PCM defaults to base calibration, Rough idle initially, Harsh transmission shifts.
What causes P1605 on a 2012-2018 Ford Focus Electric?
Common causes of P1605 include: KAM circuit voltage issue, Faulty KAM fuse or relay, PCM internal failure, Battery cable issue.