Mitsubishi B1437
52B-004 Page 21 of 22 TSB-18-52B-004 Please make the indicated changes to the 2016 and 2017 i-MiEV Service Manual, Group 52B - Supplemental Restraint System (SRS) -> SRS Air Bag Di
Quick answer
B1437 is documented in official Mitsubishi service-manual correction bulletins for the i-MiEV Supplemental Restraint System (SRS) air-bag diagnostic procedures. The supplied evidence does not establish the code’s fault definition, symptoms, driving or charging status, or repair procedure.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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1. What does B1437 mean?
B1437 is documented in official Mitsubishi service-manual correction bulletins for the i-MiEV Supplemental Restraint System (SRS) air-bag diagnostic procedures. The supplied evidence does not establish the code’s fault definition, symptoms, driving or charging status, or repair procedure.
2. Technical explanation
NHTSA-hosted Mitsubishi communications TSB-18-52B-002, TSB-18-52B-003, and TSB-18-52B-004 instruct technicians to replace incorrect information with correct information for DTC B1437 diagnosis in the SRS Air Bag Diagnosis section of the applicable i-MiEV service manuals. The verified summaries do not include the revised diagnostic content or a specific B1437 component/failure description.
3. What system is affected?
Supplemental Restraint System (SRS), specifically the SRS Air Bag Diagnosis / 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
- Do not attempt air-bag, SRS-ECU, wiring, or high-voltage-system repairs based on this code page.
- Have the vehicle assessed using the applicable Mitsubishi i-MiEV SRS service information by qualified service personnel.
10. Step-by-step troubleshooting
- Verified evidence establishes that Mitsubishi issued corrected B1437 diagnostic information for applicable i-MiEV service manuals.
- The actual diagnostic steps, test criteria, and fault definition are not included in the supplied evidence.
11. When to contact service
Service evaluation is appropriate because B1437 is addressed in Mitsubishi SRS air-bag diagnostic procedure corrections. Urgency and vehicle-use restrictions are not established by the supplied evidence.
12. What the service center may check
- Confirm the model year and market applicability.
- Retrieve the applicable corrected Mitsubishi SRS Air Bag Diagnosis procedure for DTC B1437.
- Diagnose according to the corrected service-manual information. The supplied evidence does not provide the procedure details.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Mitsubishi i-MiEV · 2012 · US
- Mitsubishi i-MiEV · 2013–2014 · US
- Mitsubishi i-MiEV · 2016–2017 · US
15. Related TSBs / service bulletins
- TSB-18-52B-002, published December 20, 2018: Corrects 2012 US i-MiEV service-manual information for DTC B1437 diagnosis in Group 52B, Supplemental Restraint System (SRS), SRS Air Bag Diagnosis, Diagnostic Trouble Code Procedures <SRS-ECU>.
- TSB-18-52B-003, published December 20, 2018: Corrects 2013 (Canada only) and 2014 i-MiEV service-manual information for DTC B1437 diagnosis in the same SRS diagnostic section.
- TSB-18-52B-004, published December 20, 2018: Corrects 2016 and 2017 i-MiEV service-manual information for DTC B1437 diagnosis in the same SRS diagnostic section.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Official NHTSA-hosted Mitsubishi communications: TSB-18-52B-002 (https://static.nhtsa.gov/odi/tsbs/2018/MC-10152960-9999.pdf); TSB-18-52B-003 (https://static.nhtsa.gov/odi/tsbs/2018/MC-10152959-9999.pdf); TSB-18-52B-004 (https://static.nhtsa.gov/odi/tsbs/2018/MC-10152961-9999.pdf).
19. Frequently asked questions
What system is associated with B1437?
Verified evidence places B1437 in the i-MiEV Supplemental Restraint System (SRS) air-bag diagnostic procedures for the SRS-ECU.
What does B1437 mean?
Not yet established by verified evidence. The supplied bulletins confirm corrected diagnostic information exists but do not provide the fault definition.
Which vehicles are covered by the supplied evidence?
The supplied applicability data identifies US 2012, 2013-2014, and 2016-2017 Mitsubishi i-MiEV vehicles. The TSB summaries specifically describe 2012 US, 2013 Canada-only and 2014, and 2016-2017 service-manual corrections.
Is B1437 a recall?
Not yet established by verified evidence. The supplied sources are official manufacturer communications/technical service bulletins, not recall records.