Pinpoint Test Cd : P0A5F, P0A62, P0A65

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 P0A5F:00	Drive Motor "A" Phase U Current High: No Sub Type Information	This DTC sets when an excessive current condition is detected.
SOBDMC P0A62:00	Drive Motor "A" Phase V Current High: No Sub Type Information	This DTC sets when an excessive current condition is detected.
SOBDMC P0A65:00	Drive Motor "A" Phase W Current High: No Sub Type Information	This DTC sets when an excessive current condition is detected.

Possible Sources

Wiring, terminals or connectors
Low voltage wiring
Other Inverter System Controller (ISC) DTCs
Inverter System Controller (ISC) calibration
TRID block programming
Transmission assembly

CD1 CHECK THE INVERTER SYSTEM CONTROLLER (ISC) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, retrieve the Inverter System Controller (ISC) CMDTCs.
Are any Inverter System Controller (ISC) DTCs other than P0A5F, P0A62 or P0A65 present?

Yes DIAGNOSE all other Inverter System Controller (ISC) DTCs. REFER to Diagnostic Trouble Code (DTC) Chart .

No GO to CD2

CD2 CHECK THE INVERTER SYSTEM CONTROLLER (ISC) CALIBRATION LEVEL
- Verify the Inverter System Controller (ISC) is at the latest calibration level.
Is the Inverter System Controller (ISC) at the latest calibration level?

Yes GO to CD3

No UPDATE the Inverter System Controller (ISC) to the latest calibration level.

CD3 VERIFY THE INVERTER SYSTEM CONTROLLER (ISC) TRID BLOCK HAS BEEN PROGRAMMED CORRECTLY

Verify the Inverter System Controller (ISC) TRID block has been programmed correctly. Refer to Module Reprogramming on the scan tool.

Has the TRID block been successfully programmed?

Yes

GO to CD4

No	CHECK OASIS for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, reflash the Inverter System Controller (ISC) TRID block.

CD4 VISUAL INSPECTION OF THE LOW VOLTAGE SYSTEM
- Ignition OFF.
- Depower the high voltage system. REFER to: High Voltage System De-energizing .
- Visually inspect all the low voltage cables.
- Make sure all the low voltage connectors are correctly and securely connected.
- Examine all the low voltage cables and connectors for damaged, burned or overheated insulation and loose or broken conditions.
Is a concern present?

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

No GO to CD5

CD5 CHECK THE MOTOR RESOLVER CIRCUITS FOR AN OPEN

Ignition OFF.

Disconnect HF 45 Transmission C1111.

Disconnect Inverter System Controller (ISC) C199B.

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111-13	Courtesy of FORD MOTOR COMPANY	C199B-1
C1111-3	Courtesy of FORD MOTOR COMPANY	C199B-2
C1111-12	Courtesy of FORD MOTOR COMPANY	C199B-7
C1111-2	Courtesy of FORD MOTOR COMPANY	C199B-8
C1111-1	Courtesy of FORD MOTOR COMPANY	C199B-13
C1111-11	Courtesy of FORD MOTOR COMPANY	C199B-19

Is the resistance less than 5 ohms?

Yes

GO to CD6

No	INSTALL a new High Voltage Cable from the Inverter System Controller (ISC) to the traction battery. REFER to: High Voltage Battery Cables - Hybrid Electric Vehicle (HEV) . . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD6 CHECK THE MOTOR RESOLVER CIRCUITS FOR A SHORT TO GROUND

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111-13	Courtesy of FORD MOTOR COMPANY	Ground
C1111-3	Courtesy of FORD MOTOR COMPANY	Ground
C1111-12	Courtesy of FORD MOTOR COMPANY	Ground
C1111-2	Courtesy of FORD MOTOR COMPANY	Ground
C1111-1	Courtesy of FORD MOTOR COMPANY	Ground
C1111-11	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance above 10K ohms?

Yes

GO to CD7

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

CD7 CHECK THE MOTOR RESOLVER CIRCUITS FOR A SHORT TO VOLTAGE

Ignition ON.

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111-13	Courtesy of FORD MOTOR COMPANY	Ground
C1111-3	Courtesy of FORD MOTOR COMPANY	Ground
C1111-12	Courtesy of FORD MOTOR COMPANY	Ground
C1111-2	Courtesy of FORD MOTOR COMPANY	Ground
C1111-1	Courtesy of FORD MOTOR COMPANY	Ground
C1111-11	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	With the aid of the wiring diagram, REPAIR the short circuit. CLEAR the Inverter System Controller (ISC) DTCs and REPEAT the self-test.

GO to CD8

CD8 CHECK THE MOTOR RESOLVER CIRCUITS FOR A SHORT TO THE EXTERNAL CABLE SHIELD

Ignition OFF.

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C199B-1	Courtesy of FORD MOTOR COMPANY	C199B-9
C199B-2	Courtesy of FORD MOTOR COMPANY	C199B-9
C199B-7	Courtesy of FORD MOTOR COMPANY	C199B-9
C199B-8	Courtesy of FORD MOTOR COMPANY	C199B-9
C199B-13	Courtesy of FORD MOTOR COMPANY	C199B-9
C199B-19	Courtesy of FORD MOTOR COMPANY	C199B-9

Is the resistance less than 5 ohms?

Yes

GO to CD9

No	With the aid of the wiring diagram, REPAIR the short circuit. CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD9 CHECK THE MOTOR RESOLVER CIRCUITS FOR A SHORT TOGETHER

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1111-13	Courtesy of FORD MOTOR COMPANY	C1111-3
C1111-13	Courtesy of FORD MOTOR COMPANY	C1111-12
C1111-13	Courtesy of FORD MOTOR COMPANY	C1111-2
C1111-13	Courtesy of FORD MOTOR COMPANY	C1111-1
C1111-13	Courtesy of FORD MOTOR COMPANY	C1111-11
C1111-3	Courtesy of FORD MOTOR COMPANY	C1111-12
C1111-3	Courtesy of FORD MOTOR COMPANY	C1111-2
C1111-3	Courtesy of FORD MOTOR COMPANY	C1111-1
C1111-3	Courtesy of FORD MOTOR COMPANY	C1111-11
C1111-12	Courtesy of FORD MOTOR COMPANY	C1111-2
C1111-12	Courtesy of FORD MOTOR COMPANY	C1111-1
C1111-12	Courtesy of FORD MOTOR COMPANY	C1111-11
C1111-2	Courtesy of FORD MOTOR COMPANY	C1111-1
C1111-2	Courtesy of FORD MOTOR COMPANY	C1111-11
C1111-1	Courtesy of FORD MOTOR COMPANY	C1111-11

Is the resistance greater than 10K ohms?

Yes	GO to CD10

No	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD10 CHECK THE MOTOR RESOLVER FOR A SHORT TOGETHER

Measure and record:

Is the resistance greater than 10K ohms?

Yes	GO to CD11

No	With the aid of the wiring diagram, REPAIR the short circuit. CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD11 CHECK THE MOTOR RESOLVER RESISTANCE

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY HF45 Transmission C1111 pin 1, component side	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY HF45 Transmission C1111 pin 11, component side

Is the resistance between 7.6 and 11.4 ohms?

Yes	GO to CD12

No	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD12 CHECK THE MOTOR RESOLVER RESISTANCE

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY HF45 Transmission C1111 pin 3, component side	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY HF45 Transmission C1111 pin 13, component side

Is the resistance between 11.6 and 17.4 ohms?

Yes	GO to CD13

No	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD13 CHECK THE MOTOR RESOLVER RESISTANCE

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY HF45 Transmission C1111 pin 2, component side	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY HF45 Transmission C1111 pin 12, component side

Is the resistance between 11.2 and 16.8 ohms?

Yes	GO to CD14

No	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD14 CHECK THE MOTOR RESOLVER SENSOR FOR A SHORT TO GROUND

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY C1111 pin 1, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY C1111 pin 2, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY C1111 pin 3, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY C1111 pin 11, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY C1111 pin 12, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY C1111 pin 13, component side	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes	GO to CD15

No	INSTALL a new transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD15 VISUAL INSPECTION OF THE HIGH VOLTAGE SYSTEM
- Ignition OFF.
- Depower the high voltage system. REFER to: High Voltage System De-energizing .
- Remove the Inverter System Controller (ISC) side cover. When removing side cover, pull cover straight out approximately 2 inches before moving upwards or damage to the high voltage interlock connector may occur. REFER to: Inverter System Controller [SOBDMC] .
- Examine all the high voltage connections for damage and loose or broken conditions.
- Verify the high voltage terminal bolts are fully seated and torqued to 8 lb.ft (10.5 Nm)
Is a concern present?

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

No GO to CD16

CD16 CHECK FOR EXCESSIVE PHASE RESISTANCE

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 3, component side	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 4, component side
Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 3, component side	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 5, component side
Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 4, component side	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 5, component side

Is the resistance less than 5 ohms?

Yes	GO to CD17

No	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD17 CHECK FOR MOTOR PHASES FOR A SHORT TO GROUND

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 3, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 4, component side	Courtesy of FORD MOTOR COMPANY	Ground
Courtesy of FORD MOTOR COMPANY ISC/SOBDMC pin 5, component side	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10K ohms?

Yes	GO to CD18

No	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

CD18 CHECK FOR CORRECT INVERTER SYSTEM CONTROLLER (ISC) OPERATION

Ignition OFF.

Disconnect and inspect all Inverter System Controller (ISC) connectors.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect all Inverter System Controller (ISC) connectors. Make sure they seat and latch correctly.

Install the Inverter System Controller (ISC) side cover.

Connect HF45 Transmission C1111.

Ignition ON.

CLEAR the Inverter System Controller (ISC) DTCs.

Ignition OFF.

Wait 60 seconds.

Start the engine.

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

Is DTC P0A5F, P0A62 or P0A65 still present?

Yes	INSTALL a new Transmission. REFER to: Transmission . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.