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Hey there,
it happened a few times, now more often. While driving, sometimes there is a massive loss in power (getting slower on Autobahn/highway) and shortly after like the whole dashboard is acting up, SBS disabled, Driver Altert disabled etc, car has no power anymore, shifts really rough. I've dumped a log. Simply turning the car off and on again sovles the issue so far, but I wanted to ask for your opinion what I may can do about it?

===TCM DTC U0442:00-2F===
Code: U0442 - Invalid Data Received From ECM/PCM B

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Transmission Control Module

Freeze Frame #1:
-DTC: --- - DTC That Caused Required Snapshot Data Storage
-LOAD: 61.18 % - Calculated Load Value
-ECT: 90 °C - Engine coolant temperature
-RPM: 2023 1/min - Engine Revolutions Per Minute
-VSS: 106.0 km/h - Vehicle Speed
-IAT: 30 °C - Intake Air Temperature
-TP: 81.96 % - Throttle Position
-RUNTM: 321 s - Time Since Engine Start
-VPWR: 13.65 V - Control Module Voltage
-APP_D: 51.76 % - Accelerator Pedal Position D
-APP: 51.50 % - Accelerator Pedal Position
-APP: 51.50 % - Accelerator Pedal Position
-SLIP_VALUE: 48 1/min - Absolute Value of Slip
-HTM_DIS: 0.0 km - The distance travelled since the High Temperature Mode was activated.
-HTM_DIS: 0.0 km - The distance travelled since the High Temperature Mode was activated.
-PADDLE_DOWN: Off - Paddle Shift - Down
-PADDLE_UP: Off - Paddle Shift - Up
-TR: error - Transmission range
-PADDLE_UP: Off - Paddle Shift - Up
-PADDLE_DOWN: Off - Paddle Shift - Down
-TR: error - Transmission range
-GEAR_SEL: 6 - Gear select position
-GEAR_SEL: 6 - Gear select position
-TSS: 1979 1/min - Turbine Shaft Speed
-TSS: 1979 1/min - Turbine Shaft Speed
-OSS: 3295 1/min - Output Shaft Speed.
-OSS: 3295 1/min - Output Shaft Speed.
-TFT: 82 °C - Transmission Fluid Temperature
-TFT: 82 °C - Transmission Fluid Temperature
-LOCK_UP: ON - Toruque Converter Lockup State
-LOCK_UP: ON - Toruque Converter Lockup State
-MST_REC_SFT: 5 to 6 - Most Recent Shift Event
-SE_TYPE: Bf_5th Af_6th - Most Recent Shift Event Type Identifier
-SC_STATE: Active - Shift On Control Status
-SFT_CTL_STS: Active - Shift On Control Status
-OIL_PRES_SW2: On - Oil Pressure Switch 2
-OIL_PRES_SW1: Off - Oil Pressure Switch 1
-OP_SW2: On - Oil Pressure Switch 2
-OP_SW1: Off - Oil Pressure Switch 1
-SS_ON_OFF: Off - ON/OFF solenoid
-SS_ON-OFF: Off - ON/OFF solenoid
-EOP: Off - Electric Oil Pump
-TORQUE_DES: 460.0 Nm - Desired Engine Torque
-G_INHIBIT_R: Off - Gear Inhibit - Reverse Range
-G_INHIBIT_N: Off - Gear Inhibit - Neutral Range
-G_INHIBIT_6: Off - Gear Inhibit - 6th Gear
-G_INHIBIT_5: Off - Gear Inhibit - 5th Gear
-G_INHIBIT_4: Off - Gear Inhibit - 4th Gear
-G_INHIBIT_3: Off - Gear Inhibit - 3rd Gear
-G_INHIBIT_2: Off - Gear Inhibit - 2nd Gear
-G_INHIBIT_1: Off - Gear Inhibit - 1st Gear
-OIL_PRES_SW4: On - Oil Pressure Switch 4
-OIL_PRES_SW3: Off - Oil Pressure Switch 3
-EOP_RLY: Off - Electric Oil Pump Relay
-OP_SW4: On - Oil Pressure Switch 4
-OP_SW3: Off - Oil Pressure Switch 3
-EOP_RLY: Off - Electric Oil Pump Relay
-UPSHIFT_REV: On - Upshift Record By Engine Request

===END TCM===

===PCM DTC P0299:00-26===
Code: P0299 - Turbocharger/Supercharger "A" Underboost Condition

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Powertrain Control Module
===END PCM===

===PCM DTC P117A:00-28===
Code: P117A - Engine Oil Overtemperature - Forced Limited Power

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:
-DTC: --- - DTC That Caused Required Snapshot Data Storage
-LOAD: 99.22 % - Calculated Load Value
-ECT: 95 °C - Engine coolant temperature
-RPM: 1630 1/min - Engine Revolutions Per Minute
-VSS: 68.0 km/h - Vehicle Speed
-IAT: 21 °C - Intake Air Temperature
-MAF: 18.44 g/s - Mass Air Flow
-TP: 81.96 % - Throttle Position
-ISV_POS: 81.96 % - Intake Shatter Valve Position
-RUNTM: 807 s - Time Since Engine Start
-FRP: 117340.0 kPa - Fuel Rail Pressure
-FLI: 20.00 % - Fuel Level
-WARM_UPS: 9 - Number Of Warm-ups Since DTCs Cleared
-CLR_DIST: 651.0 km - Distance since diagnostic trouble codes cleared
-BARO: 97.0 kPa - Barometric pressure
-VPWR: 13.76 V - Control Module Voltage
-TP_REL: 82.35 % - Relative Throttle Position
-AAT: 21 °C - Ambient Air Temperature
-IAT: 21 °C - Intake Air Temperature
-APP_D: 56.08 % - Accelerator Pedal Position D
-APP_E: 56.08 % - Accelerator Pedal Position E
-TAC_PCT: 82.35 % - Commanded Throttle Actuator Control
-ISV_DSD: 82.35 % - Intake Shatter Valve Control Desired
-FUEL_TYPE: DSL - Type of fuel currently being utilized by the vehicle
-FRP_ABS: 117340.0 kPa - Fuel Rail Pressure (Absolute)
-APP_REL: 56.08 % - Accelerator Pedal Position Relative
-EOT: 98 °C - Engine Oil Temperature
-ECT2_SUP: Yes - Engine Coolant Temperature Sensor 1 supported
-ECT1_SUP: Yes - Engine Coolant Temperature Sensor 1 supported
-ECT2: 135 °C - Engine Coolant Temperature 2 - Voltage
-ECT1: 95 °C - Engine Coolant Temperature Sensor 1

===END PCM===

===OBDII DTC ===
Successful DTC reading, no error codes found

Module: On Board Diagnostic II
===END OBDII===

===HUD_MZ DTC ===
Successful DTC reading, no error codes found

Module: Head Up Display
===END HUD_MZ===

===AM DTC ===
Successful DTC reading, no error codes found

Module: Amplifier Module
===END AM===

===CMU DTC B108E:04-0B===
Code: B108E - Display

Additional Fault Symptom:
- System Internal Failures

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Connectivity Master Unit
===END CMU===

===CMU DTC B119F:92-08===
Code: B119F - GPS Antenna

Additional Fault Symptom:
- Performance Or Incorrect Operation

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

Module: Connectivity Master Unit
===END CMU===

===SBS/MRCC DTC U0301:09-8A===
Code: U0301 - Software Incompatibility with ECM/PCM

Additional Fault Symptom:
- Component Failures

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is On for this DTC

Module: Smart Brake Support/Mazda Radar Cruise Control

Freeze Frame #1:
-ECU_POWER_SUPPLY: 13.8 V - ECU Power Supply Voltage

===END SBS/MRCC===

===SBS/MRCC DTC U0316:09-8A===
Code: U0316 - Software Incompatibility with Vehicle Dynamics Control Module

Additional Fault Symptom:
- Component Failures

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is On for this DTC

Module: Smart Brake Support/Mazda Radar Cruise Control

Freeze Frame #1:
-ECU_POWER_SUPPLY: 13.8 V - ECU Power Supply Voltage

===END SBS/MRCC===

===ABS DTC U0401:00-8A===
Code: U0401 - Invalid Data Received From ECM/PCM 'A'

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is On for this DTC

Module: Antilock braking system
===END ABS===

===EPB DTC ===
Successful DTC reading, no error codes found

Module: Electric Parking Brake
===END EPB===

===DCDC DTC ===
Successful DTC reading, no error codes found

Module: DC to DC Converter Control Module
===END DCDC===

===DSM DTC ===
Successful DTC reading, no error codes found

Module: Driver's Seat Module
===END DSM===

===RCM DTC ===
Successful DTC reading, no error codes found

Module: Restraint Control Module
===END RCM===

===AFS/ALM DTC ===
Successful DTC reading, no error codes found

Module: Adaptive Front Lighting System / Auto Leveling Module
===END AFS/ALM===

===SSU DTC B13D3:16-08===
Code: B13D3 - PATS Transmitter

Additional Fault Symptom:
- Circuit Voltage Below Threshold

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

Module: Start Stop Unit

Freeze Frame #1:
-EVENT_TIME: 266773718 s - Event time
-TOTAL_DISTANCE: 209861 km - Total Distance
-MODULE_VOLTAGE: 12.8 V - Control Module Voltage

===END SSU===

===EPS DTC ===
Successful DTC reading, no error codes found

Module: Electronic-Controlled Power Steering
===END EPS===

===F_BCM DTC ===
Successful DTC reading, no error codes found

Module: Front Body Control Module
===END F_BCM===

===IC DTC ===
Successful DTC reading, no error codes found

Module: Instrument Cluster
===END IC===

===FSC DTC U0401:68-0A===
Code: U0401 - Invalid Data Received From ECM/PCM 'A'

Additional Fault Symptom:
- Event Information

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Forward Sensing Camera

Freeze Frame #1:
-ECU_POWER_SUPPLY: 13.9 V - ECU Power Supply Voltage

===END FSC===

===FSC DTC U0415:68-0A===
Code: U0415 - Invalid Data Received From Anti-Lock Brake System (ABS) Control Module

Additional Fault Symptom:
- Event Information

Status:
- DTC Present at Time of Request
- Malfunction Indicator Lamp is Off for this DTC

Module: Forward Sensing Camera

Freeze Frame #1:
-ECU_POWER_SUPPLY: 13.9 V - ECU Power Supply Voltage

===END FSC===

===BSM DTC ===
Successful DTC reading, no error codes found

Module: Blind Spot Monitoring
===END BSM===

===R_BCM DTC ===
Successful DTC reading, no error codes found

Module: Rear Body Control Module
===END R_BCM===

===PSM_MZ DTC ===
Successful DTC reading, no error codes found

Module: Parking Sensor Module
===END PSM_MZ===

===EATC DTC ===
Successful DTC reading, no error codes found

Module: Electronic Automatic Temperature Control
===END EATC===

Hi, I'm facing the exact same issue - P0299 (Turbo/Supercharger “A” Underboost)
Turbo makes whining noise under 2,500rpm and after that it kicks in properly and boosts fine.
After driving for some more time, lights are lit with xmas lights on dashboard, TMPS, SMBC malfunction etc.

It’s going into limp mode due to the engine oil getting too hot.
It also has an underboost code which could be caused by a boost leak or other issue.
Those engines have a lot of common problems, I would check the engine oil level and see how dirty it is. They tend to blow the injector seals and fill the oil up with soot assuming it’s a 2.2 skyactive.

Looks more like a coolant temperature problem as thats far higher and they are usully quite close as the coolant cools oil.

By all means check condition of oil, level, colour and feel, rub some between finger and thumb, it is harmless as long as you clean your hand and wash them in hot soapy water.

If coolant temp is going up have you checked yot header tank when cold. When hot is it spitting frommthe header tank, could be sign of Head gasket failing, unusual on a disel unless laboured a lot on hills or if towing.

FH2k wrote: Sun Apr 13, 2025 7:35 am
===PCM DTC P117A:00-28===
Code: P117A - Engine Oil Overtemperature - Forced Limited Power

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:
-DTC: --- - DTC That Caused Required Snapshot Data Storage
-LOAD: 99.22 % - Calculated Load Value
-ECT: 95 °C - Engine coolant temperature
-RPM: 1630 1/min - Engine Revolutions Per Minute
-VSS: 68.0 km/h - Vehicle Speed
-IAT: 21 °C - Intake Air Temperature
-MAF: 18.44 g/s - Mass Air Flow
-TP: 81.96 % - Throttle Position
-ISV_POS: 81.96 % - Intake Shatter Valve Position
-RUNTM: 807 s - Time Since Engine Start
-FRP: 117340.0 kPa - Fuel Rail Pressure
-FLI: 20.00 % - Fuel Level
-WARM_UPS: 9 - Number Of Warm-ups Since DTCs Cleared
-CLR_DIST: 651.0 km - Distance since diagnostic trouble codes cleared
-BARO: 97.0 kPa - Barometric pressure
-VPWR: 13.76 V - Control Module Voltage
-TP_REL: 82.35 % - Relative Throttle Position
-AAT: 21 °C - Ambient Air Temperature
-IAT: 21 °C - Intake Air Temperature
-APP_D: 56.08 % - Accelerator Pedal Position D
-APP_E: 56.08 % - Accelerator Pedal Position E
-TAC_PCT: 82.35 % - Commanded Throttle Actuator Control
-ISV_DSD: 82.35 % - Intake Shatter Valve Control Desired
-FUEL_TYPE: DSL - Type of fuel currently being utilized by the vehicle
-FRP_ABS: 117340.0 kPa - Fuel Rail Pressure (Absolute)
-APP_REL: 56.08 % - Accelerator Pedal Position Relative
-EOT: 98 °C - Engine Oil Temperature
-ECT2_SUP: Yes - Engine Coolant Temperature Sensor 1 supported
-ECT1_SUP: Yes - Engine Coolant Temperature Sensor 1 supported
-ECT2: 135 °C - Engine Coolant Temperature 2 - Voltage
-ECT1: 95 °C - Engine Coolant Temperature Sensor 1

===END PCM===

The answer is in the data