Ford EcoSport PCM DTC P164C:00-28 error

[ma609]

Hello,
Does anyone have any hint on this sporadic error ?
It occurs sometime if I don't drive the car for a week or so.

Thanks,
Adrian

===PCM DTC P164C:00-28===
Code: P164C - Internal Control Module Start-Stop Performance

Status:
- Previously Set DTC - Not Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module

Freeze Frame #1:

Freeze Frame #2:
-EVENT_TIME: 173558490 s (Sun Sep 14 11:35:25 2025) - Event time
-TOTAL_DISTANCE: 24718 km - Total Distance
-FUELSYS: Open Loop - Fuel System Status (Open/Closed Loop)
-LOAD: 0.00 % - Calculated Load Value
-ECT: 63 °C - Engine coolant temperature
-ECT: 63 °C - Engine coolant temperature
-SHRTFT1: 0.00 % - Short term fuel trim 1
-LONGFT1: 10.94 % - Long term fuel trim 1
-MAP: 101.0 kPa - Manifold absolute pressure sensor
-RPM: 0 1/min - Engine Revolutions Per Minute
-VSS: 0.0 km/h - Vehicle Speed
-VSS: 0.0 km/h - Vehicle Speed
-SPARKADV: -3.50 ° - Spark Advance
-IAT: 24 °C - Intake Air Temperature
-RUNTM: 393 s - Time Since Engine Start
-RUNTM: 393 s - Engine Run Time
-FRP: 17500.0 kPa - Fuel Rail Pressure
-EVAP_PCT: 0.00 % - Commanded Evaporative Purge
-FLI: 62.75 % - Fuel Level
-BARO: 101.0 kPa - Barometric pressure
-BARO: 101.0 kPa - Barometric pressure
-VPWR: 11.93 V - Control Module Voltage
-VPWR: 11.93 V - Control Module Voltage
-TP_REL: 10.59 % - Relative Throttle Position
-TAC_PCT: 10.98 % - Commanded Throttle Actuator Control
-DES: 951 1/min - Desired Engine Speed
-RPMDSD: 951 1/min - Desired Idle Speed RPM
-O2S12: 0.79 V - Heated Exhaust Gas Oxygen Sensor (bank 1, sensor 2)
-TQ_CNTRL: Engine Speed Desired - Torque Control Requested
-ENGOFF_TIMER: 1 s - Timer since Engine Off
-ENGOFF_TIMER: 1 s - Timer since Engine Off
-STRT_RLY: Disabled - Starter Motor Relay Enable
-SMC_MON: Off - Starter Motor Control Output Detected
-PCVHC_F: No Fault - PCV Heater Control Status
-PTOIL: Off - Power Take Off Indicator Lamp
-PTO_RELAY_F: No Fault - Power Takeoff Relay Command Circuit Fault Detected
-PTO_RELAY_CMD: Off - Power Takeoff Relay Command
-MISFIRE: No - Engine Misfire currently detected
-MAP_F: No Fault - Manifold Absolute Pressure Sensor Status
-MAF_F: No Fault - Mass Air Flow Sensor Status
-MP_LRN: Yes - Misfire Profile Correction Learned
-IMTV_F: No Fault - IMTV Status
-IMTV: Off - Intake Manifold Tuning Valve
-IMRC_F: No Fault - Intake Manifold Runner Control Fault
-IAT_F: No Fault - Inlet Air Temperature Sensor Status
-FF_LRND: No - Inferred Flex Fuel Learned
-ETC_TRIM_LRN: Yes - Throttle Angle Offset has Learned
-EGRMC4F: No Fault - EGR Motor Control 4
-EGRMC3F: No Fault - EGR Motor Control 3
-EGRMC2F: No Fault - EGR Motor Control 2
-EGRMC1F: No Fault - EGR Motor Control 1
-EGR_F: No Fault - Exhaust Gas Recirculation Status
-ECT_F: No Fault - Engine Coolant Temperature Status
-CHTIL: Off - Cylinder Head Temperature Indicator Lamp
-CHT_F: No Fault - Cylinder Head Temperature Sensor Status
-APP_FLT: No Fault - Accelerator Pedal Position Sensor Status
-TP_F: No Fault - Throttle Position Sensor Status
-OTS_STAT: Enabled - One-Touch Start Status
-APP1: 0.79 V - Accelerator pedal position sensor 1
-APP1: 0.79 V - Accelerator pedal position sensor 1
-APP2: 0.41 V - Accelerator pedal position sensor 2
-APP2: 0.41 V - Accelerator pedal position sensor 2
-TP1: 3.86 V - Throttle Position Sensor 1
-TP2: 1.13 V - Throttle Position Sensor 2
-PROG_FLOWTRACE1: 0 - Program Flow Trace Information - 1
-PROG_FLOWTRACE2: 0 - Program Flow Trace Information - 2

===END PCM===

[fordsmax471]

battery empty

[boosted_diesel]

Check that the earth cable from gearbox/transmission to battery negative have good clean contacts. Same with power cable from alternator to batt positive. You could also do a voltage drop test on both to make sure there isn't excessive resistance in either circuit. Stop start also needs a good battery so maybe have it tested or test it yourself if you can.