I have a low miles 2012 Lincoln MKZ with only 73k miles on the car. One owner that has been overly serviced by the Ford dealership. It currently has a no start condition with a few TCM and PCM codes. I came across Thomas Watson's Post in a different forum regarding shorted wires. I have found different posts regarding one localized code not this many codes.

Has anyone came across similar errors or issues with wiring? This car has been garaged in the desert its whole life so no corrosion or other issues from the weather. I have to give a big shout out to Nick's Mustang Ranch for service manuals and wiring diagrams. He has an easy to use with links service manual, wiring diagram and PC/ED supplement for the 2011 Fusion Hybrid. He also has manuals for the 2014 and 2016 model years also.

Per the PC/ED the P0A78 indicates a new transaxle is needed but I have some other odd codes. I also have a great charge on the hybrid battery so that is not an issue. I have also reset the battery age to reflect it being only a year old.



(OK) [08:18:44.091] Successful DTC reset, DTCs will be read now...
(WARN) [08:18:44.583] DTCs in TCM: P1A16:15-AF, P0A78:87-AF
(WARN) [08:18:44.943] DTCs in PCM: P1000:00-2B, P1A14:00-2B
(WARN) [08:18:45.571] DTCs in ACCM: P0AFA:16-68




These are the general codes in short order regarding the car. Below I have the detailed data from each error message. Has anyone else out there had a similar combination? I was thinking of taking the inverter cover off to see if I could check the stator wires for resistance. I will be looking at the wiring harness to see if there is any damage in the wires.




Module: Battery Energy Control Module

Code: P1A16 - Variable Voltage Controller Voltage Control Circuit

Additional Fault Symptom:
- Circuit Short To Battery Or Open

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

Module: Transmission Control Module

Freeze Frame #1:
-EVENT_TIME: 352311932 s (Fri Oct 03 08:52:18 2036) - Event time
-TOTAL_DISTANCE: 118053 km - Total Distance
-MODULE_VOLTAGE: 12.5 V - Control Module Voltage
-OUTDOOR_TEMPERATURE: 5 °C - Outside temperature
-G_INV_V: 0.00 V - Generator Inverter Voltage
-TFT: 8 °C - Transmission Fluid Temperature
-M_PHTMP: 0 °C - Motor Inverter Phase Temperature
-MCLTEMP: 8 °C - Motor Coil Temperature
-G_PHTMP: 8 °C - Generator Inverter Phase Temperature
-GCLTEMP: 8 °C - Generator Coil Temperature
-M_SPEED: 0 1/min - Motor Speed
-G_SPEED: 0 1/min - Generator Speed
-RPM: 0 1/min - Engine Revolutions Per Minute
-TQ_DSD: 0.0 Nm - Desired Total Torque
-MTQ_CMD: 0.0 Nm - Motor Torque Command
-GTQ_CMD: 0.0 Nm - Generator Torque Command
-PRNDL_T: P - Shift Position
-HV_INTLOCK: Closed - High Voltage Interlock
-G_SDN_C: Not ShutDwn - Generator Shutdown From Powertrain Control Module
-G_SDN_B: Not ShutDwn - Generator Shutdown From Vehicle System Control
-FUELCUT: Not ShutDwn - Fuel Cut-off Signal
-CONTACT: Open - Contactor Status
-ABS Active: Normal - Antilock braking system
-TCM_CAU: Off - Transmission Control Module Caution
-TCM_HAZ: Off - Transmission Control Module Hazard Warning
-MECT: 6 °C - Motor Electronics Coolant Temperature

Code: P0A78 - Drive Motor A Inverter Performance

Additional Fault Symptom:
- Missing Message

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

Module: Transmission Control Module

Freeze Frame #1:
-EVENT_TIME: 352311932 s (Fri Oct 03 08:52:18 2036) - Event time
-TOTAL_DISTANCE: 118053 km - Total Distance
-MODULE_VOLTAGE: 12.5 V - Control Module Voltage
-OUTDOOR_TEMPERATURE: 5 °C - Outside temperature
-G_INV_V: 0.00 V - Generator Inverter Voltage
-TFT: 8 °C - Transmission Fluid Temperature
-M_PHTMP: 0 °C - Motor Inverter Phase Temperature
-MCLTEMP: 8 °C - Motor Coil Temperature
-G_PHTMP: 8 °C - Generator Inverter Phase Temperature
-GCLTEMP: 8 °C - Generator Coil Temperature
-M_SPEED: 0 1/min - Motor Speed
-G_SPEED: 0 1/min - Generator Speed
-RPM: 0 1/min - Engine Revolutions Per Minute
-TQ_DSD: 0.0 Nm - Desired Total Torque
-MTQ_CMD: 0.0 Nm - Motor Torque Command
-GTQ_CMD: 0.0 Nm - Generator Torque Command
-PRNDL_T: P - Shift Position
-HV_INTLOCK: Closed - High Voltage Interlock
-G_SDN_C: Not ShutDwn - Generator Shutdown From Powertrain Control Module
-G_SDN_B: Not ShutDwn - Generator Shutdown From Vehicle System Control
-FUELCUT: Not ShutDwn - Fuel Cut-off Signal
-CONTACT: Open - Contactor Status
-ABS Active: Normal - Antilock braking system
-TCM_CAU: On - Transmission Control Module Caution
-TCM_HAZ: Off - Transmission Control Module Hazard Warning
-MECT: 6 °C - Motor Electronics Coolant Temperature

Code: P1000 - OBD Systems Readiness Test Not Complete

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

Module: Powertrain Control Module

Code: P1A10 - Hybrid Powertrain Control Module - Battery Disabled

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

Module: Powertrain Control Module

Code: P1A14 - Hybrid Powertrain Control Module - Transmission Disabled

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

Module: Powertrain Control Module

Code: P1A14 - Hybrid Powertrain Control Module - Transmission Disabled

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

Module: Powertrain Control Module

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Successful DTC reading, no error codes found

BECM

OBDII

OCS

ABS

DCDC

RCM

PSCM

IPC


general codes

wiring issue