[Previous][Next]
Inspection Procedure 12: The external power supply function is not started (execution button operation is possible).
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
TECHNICAL DESCRIPTION (COMMENT)
When the external power supply function is not started (execution button operation is possible), unsatisfied the permission condition of the external power supply function, the PHEV-ECU or the EV remote-ECU may be defective.
noteThis troubleshooting should be done only when the message introduced in "External discharge function message screen " is displayed when the execution button of the external discharge function is pressed on the application screen.
 
 
TROUBLESHOOTING HINTS
  • Unsatisfied the permission condition of the external power supply function
  • Damaged harness wires and connectors (Malfunction of the CHOT circuit)
  • Malfunction of PHEV-ECU
  • Malfunction of EV remote-ECU
 
 
DIAGNOSIS
STEP 1. Message display check
Confirm the message screen from "message screen of the external power supply function ".
Is "Power supply can not be started" displayed?
Go to Step 2.
Inspect according to the correspondence column of the references.
 
STEP 2. Using scan tool (M.U.T.-IIISE), check the DTC.
Check if diagnostic trouble code is set in the EV remote-ECU.
Is the diagnostic trouble code set?
Troubleshoot the EV remote-ECU (Refer to ).
Go to Step 3.
 
STEP 3. Using scan tool (M.U.T.-IIISE), read the other system DTC.
Check if diagnostic trouble code is set in the PHEV-ECU.
Is the diagnostic trouble code set?
Troubleshoot the PHEV-ECU (Refer to GROUP 54Da - Troubleshooting ).
Go to Step 4.
 
STEP 4. Using scan tool (M.U.T.-IIISE), check the actuator test.
(1) Perform the following actuator tests (Refer to ).
  • Item No.3: Circuit fault detection
(2) Check if diagnostic trouble code is set.
Is the check result normal?
Troubleshoot the EV remote-ECU (Refer to ).
Go to Step 5.
 
STEP 5. Retest the system.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
: Replace the EV remote-ECU (Refer to ).