Code No. P1A2D:
Battery cooling fan abnormality (BMU)
If there is any problem in the CAN bus lines, an incorrect
diagnosis code may be set. Prior to this diagnosis, always diagnose the CAN bus lines.
The traction battery cooling fan relay is controlled by
the EV-ECU, and supplies the power to the traction battery cooling fan. The EV-ECU monitors
the traction battery cooling fan relay coil drive circuit.
BMU communicates with EV-ECU via CAN.
DIAGNOSIS CODE SET CONDITIONS
While the traction battery cooling fan relay output is
turned OFF, the output status signal of the traction battery cooling fan relay is turned ON (during
While the traction battery cooling fan relay output is turned ON, the output status
signal of the traction battery cooling fan relay is turned OFF (during the stop).
When the diagnosis code No. P1AC1 or No. P1A48 is set to the BMU, the diagnosis
code No. P1A2D will be set.
Malfunction of the BMU traction battery cooling fan system
Damaged wiring harness or connector(s)
Malfunction of the EV-ECU
STEP 1. M.U.T.-III CAN bus diagnosis
Use the M.U.T.-III to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 3.
Repair the CAN bus line. (Refer to GROUP 54C - Troubleshooting .)
Then go to Step 2.
STEP 2. Diagnosis code recheck after resetting CAN bus lines
Check again if the diagnosis code No. P1A2D is set to the EV-ECU.
(1)Erase the stored diagnosis code.
(2)Set the electric motor switch from the "LOCK" (OFF) position to the "ON" position.