Service bulletin 07-001-25b
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11016201 |
| Published by NHTSA | 2025-04-01 |
| Manufacturer's number | 07-001-25b |
| Manufacturer's date | 2025-03-25 |
| NHTSA component | UNKNOWN OR OTHER |
| Manufacturer's system | Air Conditioner |
NHTSA's summary
Some vehicles may exhibit check engine light turned on at engine startup, with DTC P0531:00 stored in memory. DTC P0531:00 [PCM] - Refrigerant pressure sensor No.1 system: Function malfunction This is caused by improper control logic of the PCM and the dash-electrical supply unit (Dash-ESU). To eliminate this concern, the control logic of the PCM and the Dash-ESU has been modified.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Trouble codes named
P0531
| MAZDA CX-70 | 2025 |
|---|---|
| MAZDA CX-90 | 2024, 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.