Code No. P1B01: Quick Charger vehicle error



caution
  • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be stored. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
  • Whenever ECU is replaced, ensure that the CAN bus lines are normal.

TROUBLE JUDGEMENT


The PHEV-ECU stores diagnosis code No. P1B01 when it receives a vehicle error judgement signal from the quick charger.

PROBABLE CAUSES


Quick charge
  • Malfunction of quick charger
  • The quick charging has terminated as a diagnosis code is stored.
  • Both of the quick charging contactors are stuck.
  • Malfunction of PHEV-ECU
Electrical discharge in the atmosphere
  • The electric parking switch is released.
  • The quick charging has terminated as a diagnosis code is stored.
  • Malfunction of the external power supply equipment (MiEV power BOX)
  • Malfunction of PHEV-ECU

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III CAN bus diagnostics


Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?

Go to Step 3.
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 2.

STEP 2. Check whether the diagnosis code is stored again.


Recheck if the diagnosis code is stored.
(1)Erase the diagnosis code.
(2)Turn on the power supply mode of the electric motor switch.
(3)Check if the diagnosis code is stored.

Q. Is the diagnosis code stored?

Go to Step 3.
The procedure is complete.

STEP 3. Check whether the diagnosis code is erased when the electric parking switch is locked.


Q. Is the diagnosis code stored?

Go to Step 4.
The procedure is complete.

STEP 4. M.U.T.-III data list


Check that the following data list display contents are normal (Refer to ).
Data list
  • Item 96: Quick charge contactor (+)
  • Item 97: Quick charge contactor (-)
  • Item 98: Quick charge contactor (+) diag
  • Item 99: Quick charge contactor (-) diag
Check condition
Normal condition
Quick charging is being performed
ON
Other than above
OFF

  • Item236: Quick charger connect. judgement
Check condition
Normal condition
Quick charging connector connected
ON
Quick charging connector not connected
OFF

  • Item262: Quick charger function
Check condition
Normal condition
A quick charger cannot be used or identified.
NG
A quick charger can be used.
OK

Q. Is the check result normal?

Go to Step 6.
Go to Step 5.

STEP 5. Is another diagnosis code related to the quick charging stored?


Q. Is the check result normal?

Go to Step 6.
Troubleshoot for the relevant diagnosis code.

STEP 6. Check that the connector of the quick charger or the external power supply equipment (MiEV power BOX) is not locked.


Q. Is the check result normal?

Check the quick charger or the external power supply equipment (MiEV power BOX). Then go to Step 7.
Disconnect the charging gun securely to unlock.

STEP 7. Check whether the diagnosis code is stored again.


Recheck if the diagnosis code is stored.
(1)Erase the diagnosis code.
(2)Turn on the power supply mode of the electric motor switch.
(3)Check if the diagnosis code is stored.

Q. Is the diagnosis code stored?

Replace the PHEV-ECU (Refer to ).
The procedure is complete.