Code No. P1A14: Quick charging contactor circuit (low input)
Code No. P1B0A: Quick charging contactor circuit (high input)


QUICK CHARGING CONTROL SYSTEM CIRCUIT









OPERATION



DIAGNOSIS CODE SET CONDITIONS



  • When the quick charging relay coil drive circuit monitor is set to ON while the quick charging relay stop command is underway, the diagnosis code No. P1A14 will be set.
  • When the quick charging relay coil drive circuit monitor is set to OFF while the quick charging relay drive command is underway, the diagnosis code No. P1B0A will be set.

PROBABLE CAUSES



  • Damaged wiring harness or connector(s)
  • Malfunction of the quick charging relay
  • Malfunction of the EV-ECU

DIAGNOSIS PROCEDURE

STEP 1. Measure the voltage at C-105 quick charging relay connector.
(1)Disconnect the on quick charging relay, and measure the voltage at the wiring harness side.
(2)Turn the electric motor switch to the "ON" position.
(3)Measure the voltage between the C-105 quick charging relay connector terminal No. 2 and the body earth.
OK: Battery voltage

Q. Is the check result normal?
Go to Step 4.
Go to Step 2.

STEP 2. Connector check: C-105 quick charging relay connector, B-27 intermediate connnector

Q. Is the check result normal?
Go to Step 3.
Repair the damaged connector.

STEP 3. Check the wiring harness between C-105 quick charging relay connector terminal No. 2 and A-08X EV control relay (relay box) connector terminal No. 1.
Check the power supply line for open circuit.

Q. Is the check result normal?
Go to Step 4.
Repair the wiring harness.

STEP 4. Quick charging relay check
Check the quick charging relay. (Refer to .)

Q. Is the check result normal?
Go to Step 5.
Replace the quick charging relay.

STEP 5. Connector check: C-111 EV-ECU connector

Q. Is the check result normal?
Go to Step 6.
Repair the damaged connector.

STEP 6. Check the wiring harness between C-105 quick charging relay connector terminal No. 4 and C-111 EV-ECU connector terminal No. 112.
Check the power supply line for open circuit and short to earth.

Q. Is the check result normal?
Go to Step 7.
Repair the wiring harness.

STEP 7. Diagnosis code recheck
Check again if the diagnosis code is set to the EV-ECU.
(1)Erase the stored diagnosis code.
(2)Connect the quick charging gun. Or connect the M.U.T.-III..
(3)Check if the diagnosis code is set.

Q. Is the diagnosis code set?
Replace the EV-ECU. (Refer to .) Then go to Step 8.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction .)

STEP 8. Diagnosis code recheck
Check again if the diagnosis code is set to the EV-ECU.
(1)Erase the stored diagnosis code.
(2)Connect the quick charging gun. Or connect the M.U.T.-III..
(3)Check if the diagnosis code is set.

Q. Is the diagnosis code set?
Return to Step 1.
The diagnosis is complete.