DTC P0A40:76 [DRIVE MOTOR CONTROL MODULE (e-SKYACTIV)]

id300203045100

Warning
<<High voltage>>
•  If the necessary measures are not taken before servicing an electric vehicle, it could cause electrical shock and result in serious injury or, in the worst case, death. Before servicing the electric vehicle, refer to [HIGH VOLTAGE SERVICE CAUTIONS] in the general information and implement the necessary measures. (See HIGH VOLTAGE SERVICE CAUTIONS.)

Outline

System malfunction location

Electric motor resolver signal: Rationality error
Detection condition
•  The drive motor control module detects that the difference between the angle signal output by the resolver in the electric motor and the standard angle signal is the specified value or more.
Fail-safe
•  Stops the electric motor.
Possible cause
•  Electric motor speed sensor (built into motor case) malfunction
•  Drive motor control module malfunction
System wiring diagram
•  Not applicable
Connector diagram
•  Not applicable


Diagnostic Procedure

Warning
<<High voltage>>
•  If necessary measures such as wearing the correct protective gear are not taken when inspecting or removing/installing the high voltage parts, it could cause electrical shock and result in serious injury or, in the worst case, death.
•  Before inspecting or removing/installing the high voltage parts, refer to [HIGH VOLTAGE SERVICE CAUTIONS] in the general information and [High Voltage Part Inspection and Removal/Installation Notes] of the high voltage system service cautions and implement the necessary measures and preparations. (See HIGH VOLTAGE SERVICE CAUTIONS.) (See HIGH VOLTAGE SYSTEM SERVICE CAUTIONS.)

Step

Inspection

Results

Action
1
RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION
•  Record the snapshot data.
Note
•  Recording can be facilitated using the screen capture function of the PC.
—
Go to the next step.
2
INSPECT ELECTRIC MOTOR SPEED SENSOR FOR MALFUNCTION
Warning
<<High voltage>>
•  Wear insulated gloves when working on a high voltage system.
•  Inspect the applicable part.
•  Is the part normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning location and perform the repair completion verification 1.
(See ELECTRIC MOTOR REMOVAL/INSTALLATION.)
Repair completion verification 1
VERIFY THAT VEHICLE IS REPAIRED
Warning
<<High voltage>>
•  Wear insulated gloves when working on a high voltage system.
•  Install/connect the part removed/disconnected during the troubleshooting procedure.
Warning
•  While performing this step, always operate the vehicle in a safe and lawful manner.
•  Replicate the vehicle conditions at the time the DTC was detected using the following procedure.
―  Drive the vehicle for 10 min or more.
•  Perform the DTC inspection for the drive motor control module.
•  Is the same Pending DTC present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].)
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the drive motor control module, then go to the next step.
No
Go to the next step.
Repair completion verification 2
VERIFY IF OTHER DTCs DISPLAYED
•  Perform the DTC inspection.
•  Are any other DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
Repair completion verification 3
VERIFY THAT NO OTHER MALFUNCTION OCCURS
Warning
•  While performing this step, always operate the vehicle in a safe and lawful manner.
•  Drive the vehicle for 10 min or more.
•  Perform the DTC inspection.
•  Are any DTCs displayed?
Yes
Repair the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.