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Mitsubishi B1426

52B-004 Please make the indicated changes to the 2016 and 2017 i-MiEV Service Manual, Group 52B - Supplemental Restraint System (SRS) -> SRS Air Bag Diagnosis -> Diagnostic Trouble

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService evaluation is appropriate because B1426 is documented under SRS-ECU diagnostic trouble-code procedures; however, whether service is mandatory or urgent is not yet established by verified evidence.
Confidence95%

Quick answer

B1426 is documented in Mitsubishi service-manual correction bulletins for the i-MiEV Supplemental Restraint System (SRS). The verified evidence does not provide the underlying fault definition, symptoms, repair, or driving/charging status.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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DTC Mitsubishi B1426 Short ExplanationMaxidot Fiat

Videos are supporting material and never override OEM or regulator evidence.

1. What does B1426 mean?

B1426 is documented in Mitsubishi service-manual correction bulletins for the i-MiEV Supplemental Restraint System (SRS). The verified evidence does not provide the underlying fault definition, symptoms, repair, or driving/charging status.

2. Technical explanation

For 2016–2017 US i-MiEV models, Mitsubishi TSB-18-52B-004 instructs technicians to replace incorrect diagnostic information with correct information for SRS-ECU DTC B1426 (and B1436) in the SRS Air Bag Diagnosis manual section. Equivalent manual-correction bulletins are documented for 2012 models (TSB-18-52B-002) and 2013 Canada-only/2014 models (TSB-18-52B-003).

3. What system is affected?

Supplemental Restraint System (SRS), including SRS air-bag diagnosis and the SRS-ECU diagnostic trouble-code procedures.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Have a Mitsubishi-qualified service provider diagnose B1426 using the corrected SRS-ECU diagnostic procedure applicable to the vehicle model year.
  • Do not attempt air-bag or SRS component repair without qualified service procedures.

10. Step-by-step troubleshooting

  1. Verified evidence establishes that the applicable i-MiEV service manual diagnostic information for B1426 was corrected by Mitsubishi technical service bulletins.
  2. The provided evidence does not include the corrected step-by-step diagnostic content, so no specific tests, wiring checks, or component checks are established.

11. When to contact service

Service evaluation is appropriate because B1426 is documented under SRS-ECU diagnostic trouble-code procedures; however, whether service is mandatory or urgent is not yet established by verified evidence.

12. What the service center may check

  • Confirm the vehicle model year and market applicability.
  • Retrieve and follow the corrected B1426 SRS-ECU diagnostic procedure referenced by the applicable Mitsubishi bulletin.
  • For 2016–2017 US i-MiEV: TSB-18-52B-004.
  • For 2012 i-MiEV: TSB-18-52B-002.
  • For 2013 Canada-only and 2014 i-MiEV: TSB-18-52B-003.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • TSB-18-52B-004, published December 20, 2018: Corrects 2016–2017 i-MiEV SRS Air Bag Diagnosis manual information for DTC B1426 and B1436. NHTSA document: https://static.nhtsa.gov/odi/tsbs/2018/MC-10152961-9999.pdf
  • TSB-18-52B-002, published December 20, 2018: Corrects 2012 i-MiEV SRS Air Bag Diagnosis manual information for DTC B1426 and B1436. NHTSA document: https://static.nhtsa.gov/odi/tsbs/2018/MC-10152960-9999.pdf
  • TSB-18-52B-003, published December 20, 2018: Corrects 2013 Canada-only and 2014 i-MiEV SRS Air Bag Diagnosis manual information for DTC B1426 and B1436. NHTSA document: https://static.nhtsa.gov/odi/tsbs/2018/MC-10152959-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

NHTSA-hosted Mitsubishi manufacturer communications document corrections to i-MiEV SRS diagnostic manual procedures for B1426. The supplied evidence does not establish a recall, a fault definition, or a specific repair.

19. Frequently asked questions

What does Mitsubishi i-MiEV code B1426 mean?

The supplied verified evidence identifies B1426 as an SRS-ECU diagnostic trouble code whose service-manual diagnostic information was corrected. A specific fault meaning is not yet established by verified evidence.

Which i-MiEV vehicles are covered by the documented bulletins?

The supplied evidence documents 2016–2017 US i-MiEV applicability, 2012 i-MiEV applicability, and 2013 Canada-only/2014 i-MiEV applicability.

Is B1426 a battery or charging code?

The verified information places B1426 in the Supplemental Restraint System diagnostic procedures, not in an EV battery or charging diagnostic section.

Can I drive or charge with B1426?

Not yet established by verified evidence.

20. Sources & verification

Verified
Mitsubishi B1426: 52B-004 Please make the indicated changes to the… | EV Diagnostics