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.
Diagnostic Trouble Code Chart
HINT:
If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See" column below.
| DTC Code | Detection Item | See |
|---|---|---|
| B2271 | Ignition Hold Monitor Malfunction | Refer to DTC B2271: Ignition Hold Monitor Malfunction |
| B2274 | ACC Monitor Malfunction | Refer to DTC B2274: ACC Monitor Malfunction |
| B2275 | STSW Monitor Malfunction | Refer to DTC B2275: STSW Monitor Malfunction |
| B2277 | Detecting Vehicle Submersion | Refer to DTC B2277: Detecting Vehicle Submersion |
| B2282 | Vehicle Speed Signal Malfunction | Refer to DTC B2282: Vehicle Speed Signal Malfunction |
| B2284 | Brake Signal Malfunction | Refer to DTC B2284: Brake Signal Malfunction |
| B2286 | Runnable Signal Malfunction | Refer to DTC B2286: Runnable Signal Malfunction |
| U0293 | Lost Communication with HV ECU | Refer to DTC U0293: Lost Communication with HV ECU |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.