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.
DTC Description
Located in IPDM E/R, it runs the starter motor. The starter relay is turned ON by the BCM when the push-button ignition switch is in START position. IPDM E/R transmits the starter relay ON signal to BCM via CAN communication.
DTC DETECTION LOGIC
- If DTC B210E is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to DTC Description .
- If DTC B210E is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to DTC Description .
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC Detection Condition | |
|---|---|---|---|
| B210E | STARTER RELAY OFF (Starter relay off circuit) | Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | - | ||
| Threshold | IPDM E/R detects that the relay is stuck at ON position even if the following conditions are met for about 1 second:
|
||
| Diagnosis delay time | - | ||
POSSIBLE CAUSE
- IPDM E/R
- Harness or connector
FAIL-SAFE
-
NO RELATED
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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.