Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Stop/Start System
|
DTC No. |
Detected items |
Stop/start system operating condition in fail safe mode |
||
|
Idling or driving the vehicle |
Stop/start system operating |
|||
|
Stop |
During cranking (Restart) |
|||
|
B1910 B1911 |
Sub battery relay |
Prohibit the stop/start system operation |
-- |
Prohibit the stop/start system operation from the next time |
|
P0120 |
Sensor power supply |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P0605 |
EMCM |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P0607 |
-- |
|||
|
P0643 |
Sensor power supply |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P1540 P1543 P1544 |
Sub battery current sensor |
Prohibit the stop/start system operation |
-- |
Prohibit the stop/start system operation from the next time |
|
P1541 P1542 |
Restart the engine |
|||
|
P1546 P1547 |
Sub battery temperature sensor |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P1550 P1553 P1554 |
Main battery current sensor |
Prohibit the stop/start system operation |
-- |
Prohibit the stop/start system operation from the next time |
|
P1551 P1552 |
Restart the engine |
|||
|
P1556 P1557 |
Main battery temperature sensor |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P1575 |
Brake switch |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P1576 P1577 |
Brake pedal position switch |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
P1655 |
Engine restart bypass relay |
Prohibit the stop/start system operation |
Prohibit the stop/start system operation |
Prohibit the stop/start system operation from the next time |
|
P1656 |
Engine restart bypass relay |
Prohibit the stop/start system operation |
Prohibit the stop/start system operation |
Prohibit the stop/start system operation from the next time |
|
P1805 |
Brake switch |
Prohibit the stop/start system operation |
Restart the engine |
Prohibit the stop/start system operation from the next time |
|
U1000 |
CAN communication line |
Prohibit the stop/start system operation |
Restart the engine
NOTE:
Does not start the engine by the CAN communication abnormal status
|
Prohibit the stop/start system operation from the next time |
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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