Automatic Transaxle: Diagnosis Ford Grand C-MAX II

DTC Chart

Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.

REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).

Note. Using the diagnostic scan tool, the TR sensor and the TFT sensor Diagnostic Trouble Codes (DTCs) are located within the SOBDMC/ TCM .

Note. For all other SOBDMC/ TCM Diagnostic Trouble Codes (DTCs), Refer to ENGINE CONTROLS - INTRODUCTION (HYBRID) .

DTC Fault Trigger Conditions

PINPOINT TEST A: TRANSMISSION RANGE SENSOR

1. A1 READ AND RECORD ALL DTCS Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Are TR sensor Diagnostic Trouble Codes (DTCs) present? Yes : For DTC P2800:00, P2801:00, P2802:00, P2803:00 and/or P2806:00, GO to A2 No : For DTC P2806:79, GO to A6
2. A2 CHECK THE TR (TRANSMISSION RANGE) SENSOR POWER CIRCUIT FOR VOLTAGE Ignition OFF. Disconnect HF35 Transmission C168C. Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Ignition ON. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 Ground Is the voltage less than 5 volts? Yes : GO to A4 No : GO to A3
3. A3 CHECK THE TR (TRANSMISSION RANGE) SENSOR GROUND CIRCUIT Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 C168C-9 Is the voltage less than 5 volts? Yes : GO to A4 No : INSTALL a new TR sensor. REFER to: «TRANSMISSION RANGE (TR) SENSOR»(ref-539174-S12141188502013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation).
4. A4 CHECK THE TR (TRANSMISSION RANGE) SENSOR CIRCUITS FOR AN OPEN Ignition OFF. Disconnect PCM C175T . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 C175T-11 C168C-8 C175T-4 C168C-9 C175T-3 C168C-10 C175T-12 Is the resistance less than 3 ohms? Yes : GO to A5 No : REPAIR the circuit.
5. A5 CHECK THE TR (TRANSMISSION RANGE) SENSOR CIRCUITS FOR A SHORT TO GROUND Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 Ground C168C-8 Ground C168C-9 Ground C168C-10 Ground Is the resistance greater than 10, 000 ohms? Yes : INSTALL a new TR sensor. REFER to: «TRANSMISSION RANGE (TR) SENSOR»(ref-539174-S12141188502013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation). No : INSPECT and REPAIR the circuit shorted to ground. If a short to ground was not found, INSTALL a new PCM . REFER to: «POWERTRAIN CONTROL MODULE (PCM)»(ref-539164-S28599889492013040100000) (303-14 Electronic Engine Controls - 2.0L Duratec - Hybrid (96kW/130PS), Removal and Installation).
6. A6 CHECK THE PARK PAWL Make sure the selector lever is in the Park position and gently push the vehicle. Is there vehicle movement or did the DTC reset? Yes : VERIFY the selector lever cable adjustment. REFER to: «SELECTOR LEVER CABLE ADJUSTMENT»(ref-539203-S40933444312013040100000) (307-05 Automatic Transmission External Controls, General Procedures). No : Park the vehicle on a variety of grades and if vehicle movement is detected, check the integrity of the park pawl. REFER to: «TRANSMISSION»(ref-539174-S04554186622013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Disassembly).

PINPOINT TEST B: TRANSMISSION FLUID TEMPERATURE SENSOR

1. B1 READ AND RECORD ALL DTCS Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Are Diagnostic Trouble Codes (DTCs) P0710:10, P0710:15 and/or P0710:62 present? Yes : For Diagnostic Trouble Codes (DTCs) P0710:10, GO to B5 For Diagnostic Trouble Codes (DTCs) P0710:15, GO to B2 For Diagnostic Trouble Codes (DTCs) P0710:62, GO to B7 No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.
2. B2 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL INPUT VOLTAGE Ignition OFF. Disconnect HF35 Transmission C168C . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Ignition ON. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-18 Ground Is the voltage greater than 4.1 volts? Yes : GO to B3 No : GO to B4
3. B3 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR GROUND CIRCUIT FOR AN OPEN Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-18 C168C-19 Is the voltage greater than 4.1 volts? Yes : GO to B4 No : REPAIR the circuit.
4. B4 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL CIRCUIT FOR AN OPEN Ignition OFF. Disconnect SOBDMC / TCM C1458B . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1458B-10 C168C-18 Is the resistance less than 3 ohms? Yes : GO to B6 No : REPAIR the circuit.
5. B5 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1458B-10 Ground Is the resistance greater than 10, 000 ohms? Yes : GO to B6 No : REPAIR the circuit.
6. B6 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR RESISTANCE Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead HF35 TFT sensor resistance pin 18 HF35 TFT sensor resistance pin 19 TEMPERATURE TO RESISTANCE CHART °F (°C) Ohms -39.9--4.0°F (-40--20°C) 1, 076K-269K -2.2-30.2°F (-19--1°C) 309K-91K 32.0-68.0°F (-20°C) 104K-35K 69.8-103.9°F (21-40°C) 40K-15K 105.7-157.9°F (41-70°C) 17K-4.9K 159.7-193.9°F (71-90°C) 5.6K-2.5K 195.7-229.8°F (91-110°C) 3.0K-1.4K 231.6-265.8°F (111-130°C) 1.7K-0.8K 267.6-301.8°F (131-150°C) 0.97K-0.56K Does the temperature to resistance specifications match? Yes : INSTALL a new SOBDMC / TCM . REFER to: «TRANSMISSION CONTROL MODULE (TCM)»(ref-539174-S17401212522013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation). No : CHECK the transmission internal harness for an open or short to ground. If the harness is good, INSTALL a new TFT sensor. REFER to: «TRANSMISSION»(ref-539174-S04554186622013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Disassembly).
7. B7 ON DEMAND SELF-TEST Check and make sure the transmission vehicle harness C168C is fully seated, the terminals are engaged in the connector and in good condition before proceeding. Using the diagnostic scan tool, make sure the transmission fluid temperature is between 86.0°F (30°C) and 427.7°F (220°C). Using the diagnostic scan tool, perform the KOEO and KOER self-test on the SOBDMC / TCM . Is DTC P0710:62 present? Yes : INSPECT the internal transmission harness insulation for cuts or chaffing. If no issues are found with the harness, INSTALL a new TFT sensor. REFER to: «TRANSMISSION»(ref-539174-S04554186622013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Disassembly). No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.

Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.

REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).

Note. Using the diagnostic scan tool, the Diagnostic Trouble Codes (DTCs) listed in the chart are located within the SOBDMC / TCM .

Note. For all other SOBDMC / TCM Diagnostic Trouble Codes (DTCs), Refer to ENGINE CONTROLS - INTRODUCTION (HYBRID) .

1. A1 READ AND RECORD ALL DTCS Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Are TR sensor Diagnostic Trouble Codes (DTCs) present? Yes : For DTC P2800:00, P2801:00, P2802:00, P2803:00 and/or P2806:00, GO to A2 No : For DTC P2806:79, GO to A6
2. A2 CHECK THE TR (TRANSMISSION RANGE) SENSOR POWER CIRCUIT FOR VOLTAGE Ignition OFF. Disconnect HF35 Transmission C168C . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Ignition ON. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 Ground Is the voltage less than 5 volts? Yes : GO to A4 No : GO to A3
3. A3 CHECK THE TR (TRANSMISSION RANGE) SENSOR GROUND CIRCUIT Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 C168C-9 Is the voltage less than 5 volts? Yes : GO to A4 No : INSTALL a new TR sensor. REFER to: «TRANSMISSION RANGE (TR) SENSOR»(ref-539174-S12141188502013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation).
4. A4 CHECK THE TR (TRANSMISSION RANGE) SENSOR CIRCUITS FOR AN OPEN Ignition OFF. Disconnect PCM C175T . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 C175T-11 C168C-8 C175T-4 C168C-9 C175T-3 C168C-10 C175T-12 Is the resistance less than 3 ohms? Yes : GO to A5 No : REPAIR the circuit.
5. A5 CHECK THE TR (TRANSMISSION RANGE) SENSOR CIRCUITS FOR A SHORT TO GROUND Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-7 Ground C168C-8 Ground C168C-9 Ground C168C-10 Ground Is the resistance greater than 10, 000 ohms? Yes : INSTALL a new TR sensor. REFER to: «TRANSMISSION RANGE (TR) SENSOR»(ref-539174-S12141188502013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation). No : INSPECT and REPAIR the circuit shorted to ground. If a short to ground was not found, INSTALL a new PCM . REFER to: «POWERTRAIN CONTROL MODULE (PCM)»(ref-539164-S28599889492013040100000) (303-14 Electronic Engine Controls - 2.0L Duratec - Hybrid (96kW/130PS), Removal and Installation).
6. A6 CHECK THE PARK PAWL Make sure the selector lever is in the Park position and gently push the vehicle. Is there vehicle movement or did the DTC reset? Yes : VERIFY the selector lever cable adjustment. REFER to: «SELECTOR LEVER CABLE ADJUSTMENT»(ref-539203-S40933444312013040100000) (307-05 Automatic Transmission External Controls, General Procedures). No : Park the vehicle on a variety of grades and if vehicle movement is detected, check the integrity of the park pawl. REFER to: «TRANSMISSION»(ref-539174-S04554186622013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Disassembly).

1. B1 READ AND RECORD ALL DTCS Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Are Diagnostic Trouble Codes (DTCs) P0710:10, P0710:15 and/or P0710:62 present? Yes : For Diagnostic Trouble Codes (DTCs) P0710:10, GO to B5 For Diagnostic Trouble Codes (DTCs) P0710:15, GO to B2 For Diagnostic Trouble Codes (DTCs) P0710:62, GO to B7 No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.
2. B2 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL INPUT VOLTAGE Ignition OFF. Disconnect HF35 Transmission C168C . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Ignition ON. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-18 Ground Is the voltage greater than 4.1 volts? Yes : GO to B3 No : GO to B4
3. B3 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR GROUND CIRCUIT FOR AN OPEN Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C168C-18 C168C-19 Is the voltage greater than 4.1 volts? Yes : GO to B4 No : REPAIR the circuit.
4. B4 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL CIRCUIT FOR AN OPEN Ignition OFF. Disconnect SOBDMC / TCM C1458B . Inspect the connector for damaged or pushed-out terminals, corrosion, loose wires and missing or damaged seals. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1458B-10 C168C-18 Is the resistance less than 3 ohms? Yes : GO to B6 No : REPAIR the circuit.
5. B5 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1458B-10 Ground Is the resistance greater than 10, 000 ohms? Yes : GO to B6 No : REPAIR the circuit.
6. B6 CHECK THE TFT (TRANSMISSION FLUID TEMPERATURE) SENSOR RESISTANCE Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead HF35 TFT sensor resistance pin 18 HF35 TFT sensor resistance pin 19 TEMPERATURE TO RESISTANCE CHART °F (°C) Ohms -39.9--4.0°F (-40--20°C) 1, 076K-269K -2.2-30.2°F (-19--1°C) 309K-91K 32.0-68.0°F (-20°C) 104K-35K 69.8-103.9°F (21-40°C) 40K-15K 105.7-157.9°F (41-70°C) 17K-4.9K 159.7-193.9°F (71-90°C) 5.6K-2.5K 195.7-229.8°F (91-110°C) 3.0K-1.4K 231.6-265.8°F (111-130°C) 1.7K-0.8K 267.6-301.8°F (131-150°C) 0.97K-0.56K Does the temperature to resistance specifications match? Yes : INSTALL a new SOBDMC / TCM . REFER to: «TRANSMISSION CONTROL MODULE (TCM)»(ref-539174-S17401212522013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation). No : CHECK the transmission internal harness for an open or short to ground. If the harness is good, INSTALL a new TFT sensor. REFER to: «TRANSMISSION»(ref-539174-S04554186622013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Disassembly).
7. B7 ON DEMAND SELF-TEST Check and make sure the transmission vehicle harness C168C is fully seated, the terminals are engaged in the connector and in good condition before proceeding. Using the diagnostic scan tool, make sure the transmission fluid temperature is between 86.0°F (30°C) and 427.7°F (220°C). Using the diagnostic scan tool, perform the KOEO and KOER self-test on the SOBDMC / TCM . Is DTC P0710:62 present? Yes : INSPECT the internal transmission harness insulation for cuts or chaffing. If no issues are found with the harness, INSTALL a new TFT sensor. REFER to: «TRANSMISSION»(ref-539174-S04554186622013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Disassembly). No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.

PINPOINT TEST C: TRANSMISSION FLUID AUXILIARY PUMP

1. C1 RETRIEVE AND RECORD ALL DTCS Using the diagnostic scan tool, retrieve all Diagnostic Trouble Codes (DTCs). Are Diagnostic Trouble Codes (DTCs) P0C27:00, P0C28:00, P0C2C:00, P0C2D:00, P0C2E:00, P175A:00 and/or P2796:00 present? Yes : For Diagnostic Trouble Codes (DTCs) P0C27:00, P0C28:00, P0C2C:00, P0C2D:00, P0C2E:00, P175A:00, GO to C2 For DTC P2796:00, GO to C6 No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or terminal issues.
2. C2 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP POWER CIRCUITS Ignition OFF. Disconnect Transmission Fluid Auxiliary Pump C1717 . Ignition ON. Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1717-1 Ground C1717-2 Ground Is the voltage greater than 10 volts? Yes : GO to C3 No : VERIFY the BJB fuses 17 (20A) and 19 (5A) are good. If fuses are good, REPAIR the affected circuit for an open. If fuses are not good, REFER to the Wiring Diagrams information to identify the cause of the affected circuit shorted to ground.
3. C3 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP GROUND CIRCUIT FOR AN OPEN Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1717-6 Ground Is the resistance less than 3 ohms? Yes : GO to C4 No : REPAIR the circuit
4. C4 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP SPEED COMMAND CIRCUIT FOR AN OPEN Disconnect SOBDMC / TCM C1458A . Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1717-4 C1458A-34 Is the resistance less than 3 ohms? Yes : GO to C5 No : REPAIR the circuit
5. C5 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP SPEED COMMAND CIRCUIT FOR A SHORT TO GROUND Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1717-4 Ground Is the resistance greater than 10, 000 ohms? Yes : INSTALL a new transmission fluid auxiliary pump. REFER to: «TRANSMISSION FLUID AUXILIARY PUMP»(ref-539174-S09876238412013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation). No : REPAIR the circuit
6. C6 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP PWM (PULSE WIDTH MODULATION) CIRCUIT FOR AN OPEN Disconnect SOBDMC / TCM C1458A . Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1717-5 C1458A-33 Is the resistance less than 3 ohms? Yes : GO to C7 No : REPAIR the circuit
7. C7 CHECK THE TRANSMISSION FLUID AUXILIARY PUMP PWM (PULSE WIDTH MODULATION) CIRCUIT FOR A SHORT TO GROUND Measure. Click to display connectors Positive Lead Measurement/Action Negative Lead C1717-4 Ground Is the resistance greater than 10, 000 ohms? Yes : INSTALL a new SOBDMC / TCM . REFER to: «TRANSMISSION CONTROL MODULE (TCM)»(ref-539174-S17401212522013040100000) (307-01 Automatic Transmission - Vehicles With: Automatic Transmission - HF35, Removal and Installation). No : REPAIR the circuit

Diagnostic PID Chart

Note. The Diagnostic Parameter Identifications (PIDs) are located in the Secondary On Board Diagnostic Module C/ TCM .

Symptom Chart: Automatic Transmission

Diagnostics in this information assume a certain skill level and knowledge of Ford-specific diagnostic practices.

REFER to: DIAGNOSTIC METHODS (100-00 General Information, Description and Operation).

In most circumstances, the PCM sets a DTC to help guide with diagnostics. Refer to the DTC CHART before using the Symptom Chart. The Condition column lists the vehicle condition. The Possible Sources column lists a detailed vehicle condition. The Action column lists the action to be performed to determine the cause of the condition. Each action lists the components that can cause the condition and the individual components in that system. The components are listed in order of disassembly. Use the list of components and the required action to focus on disassembly inspections for the root cause of the concern.

SYMPTOM CHART