Mitsubishi C1931
“Sensor failed.” NOTE: Photos must be posted on the PRC before entering the related Warranty claim. MMNA will issue a Warranty Parts Return Request for all replaced (Mirage) TPMS s
Quick answer
C1931 is listed in Mitsubishi’s official TT237 communication as a TPMS failure DTC example. The bulletin states that a DTC such as C1931 that will not erase should be documented in the PRC, along with tire-dismount history and required photos before a related warranty claim.
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 C1931 mean?
C1931 is listed in Mitsubishi’s official TT237 communication as a TPMS failure DTC example. The bulletin states that a DTC such as C1931 that will not erase should be documented in the PRC, along with tire-dismount history and required photos before a related warranty claim.
2. Technical explanation
The supplied official NHTSA-hosted Mitsubishi communication, TT237 (published February 26, 2018), includes C1931 in an example: “TPMS light remains on. DTC C1931 will not erase.” It instructs technicians to record the failure DTC(s), whether the tire had previously been dismounted, and whether the TPMS sensor was attached to the wheel when the tire was dismounted. The communication says photos must be posted on the PRC before entering the related warranty claim. It also states MMNA will issue a Warranty Parts Return Request for replaced Mirage TPMS sensors; the supplied excerpt is truncated after “wh,” so further conditions are not established here.
3. What system is affected?
Tire Pressure Monitoring System (TPMS), based on the official communication’s reference to TPMS light status, TPMS sensors, and DTC C1931.
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- The TPMS light remains on.
- DTC C1931 will not erase.
6. Possible causes
- Not yet established by verified evidence. The communication requires documentation of whether the tire was previously dismounted and whether the TPMS sensor was attached to the wheel when the tire was dismounted, but the supplied evidence does not establish these as causes of C1931.
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
- Record the displayed failure DTC(s).
- Determine from the customer, if necessary, whether the tire was previously dismounted.
- Document whether the TPMS sensor was attached to the wheel when the tire was dismounted.
- For a related warranty claim, post photos on the PRC before entering the claim, as directed by TT237.
10. Step-by-step troubleshooting
- Confirm whether the TPMS warning light remains on.
- Check whether C1931 will erase.
- Document the failure DTC(s) in the PRC.
- Obtain and document tire-dismount history, including whether the sensor was attached to the wheel when the tire was dismounted.
11. When to contact service
Service involvement is not explicitly established as required by the supplied evidence. However, TT237 provides technician documentation and warranty-claim instructions for this condition.
12. What the service center may check
- Record the failure DTC(s) that were set.
- Record whether the tire was previously dismounted.
- Record whether the TPMS sensor was attached to the wheel when the tire was dismounted.
- Post photos on the PRC before entering the related warranty claim.
13. Possible repair or resolution
- Not yet established by verified evidence. The supplied communication refers to replaced TPMS sensors and a potential MMNA Warranty Parts Return Request for replaced Mirage TPMS sensors, but it does not establish replacement as the required repair for every C1931 occurrence.
14. Affected vehicles
- Mitsubishi Outlander · 2012–2018 · US
- Mitsubishi i-MiEV · 2012–2018 · US
15. Related TSBs / service bulletins
- Mitsubishi TT237, published February 26, 2018; NHTSA Manufacturer Communication PDF 10130469 (MC-10130469-9999.pdf). It provides PRC documentation and warranty-claim instructions involving TPMS sensor concerns and uses C1931 as an example of a DTC that will not erase.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
Verified source: NHTSA-hosted Mitsubishi Manufacturer Communication TT237, published February 26, 2018: https://static.nhtsa.gov/odi/tsbs/2018/MC-10130469-9999.pdf. Verified applicability in the supplied database: 2012–2018 Mitsubishi Outlander and 2012–2018 Mitsubishi i-MiEV in the United States.
- NHTSA: NHTSA Manufacturer Communication PDF 10130469: TT237 · official_tsb
19. Frequently asked questions
What does C1931 indicate in the supplied Mitsubishi evidence?
It is shown as a TPMS failure DTC example in TT237, where the TPMS light remains on and C1931 will not erase.
What documentation does TT237 require?
It directs documentation of the failure DTC(s), whether the tire had previously been dismounted, and whether the TPMS sensor was attached to the wheel when the tire was dismounted. Photos must be posted on the PRC before the related warranty claim is entered.
Does the evidence prove that a TPMS sensor must be replaced?
No. The communication refers to replaced TPMS sensors, but the supplied evidence does not establish sensor replacement as the required repair for every C1931 case.
Which vehicles are verified as applicable?
The supplied database identifies U.S. 2012–2018 Mitsubishi Outlander and U.S. 2012–2018 Mitsubishi i-MiEV.