DTC B1003
DTC B1003 : MICU update error
| DTC Description | DTC |
|---|---|
| B1003 MICU update error |
DTC (MICU)
NOTE:
- If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .
- This DTC is indicated when a MICU update is not completed properly.
- Before updating the MICU, make sure the battery in the vehicle is fully charged, and connect a jumper battery (not a battery charger) to maintain system voltage.
- Never turn the vehicle to the ACCESSORY mode or OFF (LOCK) mode, during the reprogramming. If there is a problem with the reprogramming, turn the vehicle to the ON mode.
- Problem verification
-1. Clear the DTCs with the HDS.
Clear DTCs
-2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.
-3. Check for DTCs with the HDS.
DTC Description DTC B1003 MICU update error Is DTC B1003 indicated?
YES
Update the MICU.
NO
Intermittent failure, the system is OK at this time.