Pinpoint Test O: P0A2F:94, P0D32

NOTE: The Inverter System Controller (ISC) is referred to as the SOBDMC (Secondary On-Board Diagnostic Control Module C) in the scan tool.

Normal Operation and Fault Conditions

REFER to: Electric Powertrain Control - System Operation and Component Description .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
SOBDMC P0A2F:94	Drive Motor 'A' Over Temperature: Unexpected Operation	This DTC sets from elevated temperatures in the transmission.
SOBDMC P0D32:00	DC/DC Converter Over Temperature: No Sub Type Information	This DTC sets when the inductor temperature reading is greater than the calibrated threshold.

Possible Causes

Wiring, terminals or connectors
Transmission fluid level or temperature
Transmission cooling system
Low coolant level
Airlock in system
Inoperative electric cooling fan
Coolant flow restriction (blockage or kinked hoses)
Motor Electronics coolant pump
Motor Electronics radiator
Restricted airflow through motor electronics radiator
Inductor
Transmission

O1 CHECK THE INVERTER SYSTEM CONTROLLER (ISC) DIAGNOSTIC TROUBLE CODES (DTCS)

Ignition ON.

Using a diagnostic scan tool, perform the Inverter System Controller (ISC) self-test.

Are Diagnostic Trouble Codes (DTCs) P0A2B:64, P0A2C:00, P0A2D:00, P0A2E:00, P0711, P0712, P0713, P0714 or P0A3C:94 present?

Yes	DIAGNOSE Diagnostic Trouble Codes (DTCs) P0A2B:64, P0A2C:00, P0A2D:00, P0A2E:00, P0711, P0712, P0713, P0714 or P0A3C:94, REFER to the DTC chart in This Service Information.

GO to O2

O2 CHECK THE AUTOMATIC TRANSMISSION FLUID LEVEL

NOTE: A low automatic transmission fluid level may cause a traction motor over temperature condition.
- Ignition OFF.
- Verify the automatic transmission fluid level and condition is correct. REFER to: Transmission Fluid Level Check .
Is the transmission fluid level and condition correct?

Yes GO to O3

No DIAGNOSE the transmission cooling concern. REFER to: Automatic Transmission .

O3 CHECK THE TRANSMISSION TEMPERATURE SENSOR CORRELATION

Access the SOBDMC and monitor the GCLTEMP (Deg C) PID
Access the SOBDMC and monitor the TFT (Deg C) PID

Access the SOBDMC and monitor the MCLTEMP (Deg C) PID

Access the SOBDMC and monitor the VVC_TEMP (Deg C) PID
- Road test the vehicle while monitoring the PID s.
Were any of the monitored PID s above 120 deg.C during the road test?

Yes DIAGNOSE the transmission cooling concern. REFER to: Automatic Transmission .

No GO to O4

O4 CHECK THE GENERATOR TEMPERATURE SIGNAL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect Transmission C1111.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 14	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O5

No	With the aid of the wiring diagram, REPAIR the short circuit.

O5 CHECK THE GENERATOR TEMPERATURE RETURN CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 4	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O6

No	With the aid of the wiring diagram, REPAIR the short circuit.

O6 CHECK THE MOTOR TEMPERATURE SIGNAL CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 35	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O7

No	With the aid of the wiring diagram, REPAIR the short circuit.

O7 CHECK THE MOTOR TEMPERATURE RETURN CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 25	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O8

No	With the aid of the wiring diagram, REPAIR the short circuit.

O8 CHECK THE TRANSMISSION FLUID TEMPERATURE SIGNAL CIRCUIT FOR A SHORT TO GROUND

Disconnect Transmission Fluid Thermistor C1032.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 34	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O9

No	With the aid of the wiring diagram, REPAIR the short circuit.

O9 CHECK THE TRANSMISSION FLUID TEMPERATURE RETURN CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 24	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O10

No	With the aid of the wiring diagram, REPAIR the short circuit.

O10 CHECK THE INDUCTOR SIGNAL CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 15	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O11

No	With the aid of the wiring diagram, REPAIR the short circuit.

O11 CHECK THE INDUCTOR RETURN CIRCUIT FOR A SHORT TO GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1111 Pin 5	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes

GO to O12

No	With the aid of the wiring diagram, REPAIR the short circuit.

O12 INTERMITTENT CHECK
- Reconnect all previously disconnected connectors.
Access the SOBDMC and monitor the GCLTEMP (Deg C) PID

Access the SOBDMC and monitor the TFT (Deg C) PID

Access the SOBDMC and monitor the MCLTEMP (Deg C) PID

Access the SOBDMC and monitor the VVC_TEMP (Deg C) PID
- While observing the PID s carry out the following:
  - Lightly tap on the transmission assembly connector and wiggle the accessible harness from the transmission assembly to the Inverter System Controller (ISC)
  - Wiggle the transmission assembly connector
  - Look for sudden changes in temperature when the harness and connectors are wiggled
Are any concerns present?

Yes REPAIR as necessary. CLEAR the Inverter System Controller (ISC) DTC s. REPEAT the self-test

No GO to O13

O13 CHECK THE GENERATOR TEMPERATURE SENSOR

Use this image as reference when performing the following test.

Connector C1111 component side

Courtesy of FORD MOTOR COMPANY

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111 pin 14, component side	Courtesy of FORD MOTOR COMPANY	C1111 pin 4, component side

Record the measurement result and compare with the expected temperature values below:
- -40 deg.C 1695.7 K ohms - 2302.4 K ohms
- -35 deg.C 1194.0 K ohms - 1598.1 K ohms
- -30 deg.C 852.9 K ohms - 1126.0 K ohms
- -25 deg.C 617.6 K ohms - 804.7 K ohms
- -20 deg.C 453.0 K ohms - 582.8 K ohms
- -15 deg.C 336.2 K ohms - 427.3 K ohms
- -10 deg.C 252.4 K ohms - 317.1 K ohms
- -5 deg.C 191.5 K ohms - 237.9 K ohms
- 0 deg.C 146.8 K ohms - 180.4 K ohms
- 5 deg.C 113.6 K ohms - 138.1 K ohms
- 10 deg.C 88.7 K ohms - 106.8 K ohms
- 15 deg.C 69.9003 K ohms - 83.3 K ohms
- 20 deg.C 55.5 K ohms - 65.5 K ohms
- 25 deg.C 44.4 K ohms - 51.9 K ohms
- 30 deg.C 35.8 K ohms - 41.5 K ohms
- 35 deg.C 29.1 K ohms - 33.4 K ohms
- 40 deg.C 23.7 K ohms - 27.1 K ohms

Is the resistance within specification?

Yes

GO to O14

No	INSTALL a new transmission, this does not and should not include a new Inverter System Controller (ISC)/SOBDMC. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTC s. REPEAT the self-test.

O14 CHECK THE MOTOR TEMPERATURE SENSOR

Use this image as reference when performing the following test.

Connector C1111 component side

Courtesy of FORD MOTOR COMPANY

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111 pin 15, component side	Courtesy of FORD MOTOR COMPANY	C1111 pin 5, component side

Record the measurement result and compare with the expected temperature values below:
- -40 deg.C 1695.7 K ohms - 2302.4 K ohms
- -35 deg.C 1194.0 K ohms - 1598.1 K ohms
- -30 deg.C 852.9 K ohms - 1126.0 K ohms
- -25 deg.C 617.6 K ohms - 804.7 K ohms
- -20 deg.C 453.0 K ohms - 582.8 K ohms
- -15 deg.C 336.2 K ohms - 427.3 K ohms
- -10 deg.C 252.4 K ohms - 317.1 K ohms
- -5 deg.C 191.5 K ohms - 237.9 K ohms
- 0 deg.C 146.8 K ohms - 180.4 K ohms
- 5 deg.C 113.6 K ohms - 138.1 K ohms
- 10 deg.C 88.7 K ohms - 106.8 K ohms
- 15 deg.C 69.9003 K ohms - 83.3 K ohms
- 20 deg.C 55.5 K ohms - 65.5 K ohms
- 25 deg.C 44.4 K ohms - 51.9 K ohms
- 30 deg.C 35.8 K ohms - 41.5 K ohms
- 35 deg.C 29.1 K ohms - 33.4 K ohms
- 40 deg.C 23.7 K ohms - 27.1 K ohms

Is the resistance within specification?

Yes

GO to O15

No	INSTALL a new transmission, this does not and should not include a new Inverter System Controller (ISC)/SOBDMC. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTC s. REPEAT the self-test.

O15 CHECK THE TRANSMISSION FLUID TEMPERATURE SENSOR

Use this image as reference when performing the following test.

Connector C1111 component side

Courtesy of FORD MOTOR COMPANY

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111 pin 34, component side	Courtesy of FORD MOTOR COMPANY	C1111 pin 24, component side

Record the measurement result and compare with the expected temperature values below:
- -40 deg.C 761.4 K ohms - 1088.5 K ohms
- -35 deg.C 559.8 K ohms - 787.6 K ohms
- -30 deg.C 415.9 K ohms - 576.1 K ohms
- -25 deg.C 312.0 K ohms - 425.7 K ohms
- -20 deg.C 236.2 K ohms - 317.6 K ohms
- -15 deg.C 180.4 K ohms - 239.1 K ohms
- -10 deg.C 138.9 K ohms - 181.6 K ohms
- -5 deg.C 107.8 K ohms - 139.1 K ohms
- 0 deg.C 83.2 K ohms - 107.3 K ohms
- 5 deg.C 66.2 K ohms - 83.5 K ohms
- 10 deg.C 52.4 K ohms - 65.5 K ohms
- 15 deg.C 41.7 K ohms - 51.7 K ohms
- 20 deg.C 33.4 K ohms - 41.1K ohms
- 25 deg.C 26.9 K ohms - 33.0K ohms
- 30 deg.C 21.8 K ohms - 26.6 K ohms
- 35 deg.C 17.8 K ohms - 21.5 K ohms
- 40 deg.C 14.6 K ohms - 17.5 K ohms
- 45 deg.C 12.1 K ohms - 14.3 K ohms
- 50 deg.C 10.0 K ohms - 11.8 K ohms
- 55 deg.C 8, 347 ohms - 9, 774 ohms
- 60 deg.C 7, 084 ohms - 8, 012 ohms
- 65 deg.C 5, 945 ohms - 6, 718 ohms
- 70 deg.C 5, 013 ohms - 5, 658 ohms
- 75 deg.C 4, 245 ohms - 4, 785 ohms
- 80 deg.C 3, 610 ohms - 4, 064 ohms
- 85 deg.C 3, 083 ohms - 3, 466 ohms
- 90 deg.C 2, 642 ohms - 2, 966 ohms
- 95 deg.C 2, 274 ohms - 2, 548 ohms
- 100 deg.C 1, 963 ohms - 2, 197 ohms
- 105 deg.C 1, 701 ohms - 1, 900 ohms
- 110 deg.C 1, 479 ohms - 1, 649 ohms
- 115 deg.C 1, 290 ohms - 1, 435 ohms
- 120 deg.C 1, 129 ohms - 1, 253 ohms
- 125 deg.C 990 ohms - 1098 ohms
- 130 deg.C 871 ohms - 964 ohms
- 135 deg.C 768 ohms - 850 ohms
- 140 deg.C 678 ohms - 752 ohms
- 145 deg.C 600 ohms - 667 ohms
- 150 deg.C 532 ohms - 593 ohms

Is the resistance within specification?

Yes

GO to O16

No	INSTALL a new transmission, this does not and should not include a new Inverter System Controller (ISC)/SOBDMC. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTC s. REPEAT the self-test.

O16 CHECK THE TRANSMISSION INDUCTOR THERMISTOR RESISTANCE

Use this image as reference when performing the following test.

Connector C1111 component side

Courtesy of FORD MOTOR COMPANY

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111 pin 15, component side	Courtesy of FORD MOTOR COMPANY	C1111 pin 5, component side

Record the measurement result and compare with the expected temperature values below:
- -40 deg.C 1480 K ohms - 2008 K ohms
- -35 deg.C 1068 K ohms - 1429 K ohms
- -30 deg.C 779.9 K ohms - 1029 K ohms
- -25 deg.C 575.9 K ohms - 749.9 K ohms
- -20 deg.C 429.7 K ohms - 552.5 K ohms
- -15 deg.C 323.8 K ohms - 246.3 K ohms
- -10 deg.C 246.3 K ohms - 309.2 K ohms
- -5 deg.C 189 K ohms - 234.7 K ohms
- 0 deg.C 146.3 K ohms - 179.7 K ohms
- 5 deg.C 114.1 K ohms - 138.6 K ohms
- 10 deg.C 89.47 K ohms - 107.8 K ohms
- 15 deg.C 70.93 K ohms - 84.52 K ohms
- 20 deg.C 56.56 K ohms - 66.76 K ohms
- 25 deg.C 45.4 K ohms - 53.11 K ohms
- 30 deg.C 35.69 K ohms - 42.54 K ohms
- 35 deg.C 29.83 K ohms - 34.3 K ohms
- 40 deg.C 24.4 K ohms - 27.82 K ohms

Is the resistance within specification?

Yes	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. CLEAR the Inverter System Controller (ISC) DTC s. REPEAT the self-test.

No	INSTALL a new transmission, this does not and should not include a new Inverter System Controller (ISC)/SOBDMC. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTC s. REPEAT the self-test.