P1521 on the 2006 Jeep Commander
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 1801806 | 2006-07-20. Service bulletin. FLASH: MIL ILLUMINATION AT START-UP DUE TO DTC P2112 OR P1521. *TT |
|---|---|
| 1803505 | 2006-01-06. Service bulletin. FLASH:MIL ILLUMINATION AT START-UP DUE TO DTC P2112 OR P1521. *AK |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.