Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450 - Diagnostic Strategy

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Diagnosis and Testing
Refer to Wiring Diagrams Section 307-01, for schematic and connector information.
General Equipment
 diagnostic equipment
Inspection and Verification
  1. Verify the customer concern.
  1. Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection
MechanicalElectrical
  • Fluid level too high/low
  • Poor condition of fluid
  • Fluid leak
  • Damaged shift mechanism/linkages
  • Damaged automatic transmission/ transaxle casing
  • Fuse(s)
  • Relay(s)
  • Wiring harness
  • Electrical connector(s)
  • Selector lever module
  • Transmission control module (TCM)
  1. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
  1. If the cause is not visually evident, verify the symptom and refer to the Ford diagnostic equipment to diagnose the system.
Diagnostic Trouble Code (DTC) Chart
NOTE: The following table should be used for guidance only. The Ford diagnostic equipment must be used to diagnose concerns with the automatic transmission.
DTCDescriptionAction
P0603EEPROM faultINSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P060AInternal Control Module, Monitoring Processor Performance INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P073Egear R engagement blocking (after internal handling) INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P073Fgear 1 engagement blocking (after internal handling) INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P074Agear 2 engagement blocking (after internal handling) INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P074Bgear 3 engagement blocking (after internal handling) INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P074Cgear 4 engagement blocking (after internal handling) INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P074Dgear 5 engagement blocking (after internal handling) INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P0791In shaft 1 speed sensor defect, current out of range INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0792Input shaft speed 1 defect INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0847Clutch 2 Pressure sensor voltage below normal operation voltage INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0711Hydraulic, hybrid temperature sensor plausibility failure INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0715Damper speed sensor defect INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0766CSMS1 / CSM1 sticks low / low oil level CHECK for obvious oil leaks. CHECK the oil level and Test Drive. If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P0771CSMS2 / CSM2 sticks low / low oil level CHECK for obvious oil leaks. CHECK the oil level and Test Drive. If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P0796Clutch 1 Plausibility Failure pressure too low CHECK for obvious oil leaks. CHECK the oil level and Test Drive. If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P2714Clutch 2 Plausibility Failure pressure too low CHECK for obvious oil leaks. CHECK the oil level and Test Drive. If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P2715Clutch 2 Plausibility Failure pressure too high CHECK for obvious oil leaks. CHECK the oil level and Test Drive. If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P0841Clutch 1 Torque Plausibility Failure INSTALL a new Clutch, if symptoms persist INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0846Clutch 2 Torque Plausibility Failure INSTALL a new Clutch, if symptoms persist INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2746transmission path 2 speed plausibility error INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P1905EOL Mode active INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0949Teaching not completed Check for the latest TCM software level, Run Teach in routine using the Ford diagnostic equipment.
P171Ashift fork 1 requested but movement on shift fork 2 INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P171Cshift fork 2 requested but movement on shift fork 1 INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P171Dshift fork 2 requested but movement on shift fork 4 INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P171Fshift fork 3 requested but movement on shift fork 4 INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P172Cshift fork ½ movement in opposite direction (to left cylinder) INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P0581SHSS1 current driver error: Short to Battery INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0798CSPS1 valve current driver error: overcurrent INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2716/9CSPS2 valve current driver error: overcurrent INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2720CSPS2 valve current error: Short to Ground INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0964CCFS current driver error Open load INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0979SHCMS current driver error: Short to Ground INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0753SHSS1 current driver error: Open load INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0778CCFS current driver error: overcurrent INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0657Common high side driver 1 not functional INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P092CShift lock output short to Ground / Open Load CHECK wiring for continuity, if symptoms persist INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P081BStart lock output error: Short to Battery CHECK wiring for short, if symptoms persist INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P283Bshift fork position 3 position range error (in counts) INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P283Dshift fork position sensor 3 low output voltage failure INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2840shift fork position 4 position range error (in counts) INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2842shift fork position sensor 4 low output voltage failure INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2846shift fork position sensor 2 neutral plausibility error INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2849shift fork 1 blocked completely and no unexpected movement on other shift fork INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P284Ashift fork 2 blocked completely and no unexpected movement on other shift fork INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P284Bshift fork 3 blocked completely and no unexpected movement on other shift fork INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P284Cshift fork 4 blocked completely and no unexpected movement on other shift fork INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P284Dshift fork 1 movement but not requested INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P284Fshift fork 3 movement but not requested INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P2850shift fork 4 movement but not requested INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
P0733shift fork 2 jump out from forward towards the engine (left side)INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).
P0734shift fork 3 jump out from rearward towards the engine (right side) INSTALL a new TCM
REFER to: Transmission Control Module (TCM) and Main Control Valve Body (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450, Removal and Installation).
If symptoms persist INSTALL a new transmission REFER to: (307-01A Automatic Transmission - 6-Speed PowerShift Transmission - MPS6/6DCT450)
Transmission (Removal),
Transmission (Installation).

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