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Inspection Procedure 5: The timed charging does not work correctly (timer setting itself is possible).
 
 
cautionBefore replacing the ECU, ensure that the power supply circuit, the ground circuit and the communication circuit are normal.
 
 
TECHNICAL DESCRIPTION (COMMENT)
When a timed charging does not work correctly (timer setting itself is possible), timed charging permission conditions are not satisfied, the CHOT (EV start signal), the CHIN (timed charging signal), the on board charger/DC-DC converter, the PHEV-ECU or the EV remote-ECU may be defective.
notePrior to this procedure, turn off the timed charging.
 
 
TROUBLESHOOTING HINTS
  • Timed charging permission conditions not satisfied
  • The CAN bus line may be defective (The CHOT, CHIN signal fails)
  • The on board charger/DC-DC converter may be defective
  • The PHEV-ECU may be defective
  • The EV remote-ECU may be defective
 
 
DIAGNOSIS
STEP 1. Check whether normal charging works.
Does the normal charging work normally?
Go to Step 2.
: Troubleshoot the PHEV-ECU (Refer to GROUP 54Da - Troubleshooting ).
: Troubleshoot the on board charger/DC-DC converter (Refer to GROUP 54Dd - Troubleshooting ).
 
STEP 2. Check whether timed charging permission conditions are satisfied.
Check whether timed charging permission conditions are satisfied (Refer to ).
Is the check result normal?
Go to Step 3.
Satisfy the conditions (Refer to ).
 
STEP 3. Using scan tool (M.U.T.-IIISE), diagnose the CAN bus line.
(1)
cautionTo prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).
Connect scan tool (M.U.T.-IIISE). Refer to "How to connect the Scan Tool (M.U.T.-IIISE) ."
(2) Press the electric motor switch to turn on the power supply mode.
(3) Diagnose the CAN bus line.
(4) Press the electric motor switch to turn off the power supply mode.
Is the CAN bus line found to be normal?
Go to Step 4.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 4. Using scan tool (M.U.T.-IIISE), check the DTC.
Check if DTC is set in the EV remote-ECU.
Is the DTC set?
Troubleshoot the EV remote-ECU (Refer to ).
Go to Step 5.
 
STEP 5. Using scan tool (M.U.T.-IIISE), read the other system DTC.
Check if DTC is set in the on board charger/DC-DC converter or PHEV-ECU.
Is the DTC set?
: Troubleshoot the on board charger/DC-DC converter (Refer to GROUP 54Dd - Troubleshooting ).
: Troubleshoot the PHEV-ECU (Refer to GROUP 54Da - Troubleshooting ).
Go to Step 6.
 
STEP 6. 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 DTC is set.
Is the check result normal?
Troubleshoot the EV remote-ECU (Refer to ).
Go to Step 7.
 
STEP 7. 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 ).