C1231 on the 2011 Toyota Camry
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.
| T-SB-0086-13 | 2018-04-02. Service bulletin. Some 2009 ? 2011 model year North American production (NAP) vehicles equipped with BOSCH® made ABS/VSC systems may exhibit a repeated ABS and TRAC Warning Light ?ON? with Diagnostic Trouble Code (DTC) C1231 present. The ABS ECU logic has been modified to address this condition. |
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| TSB-0086-13 | 2013-11-20. Service bulletin. TOYOTA: ON SOME VEHICLES, EXHIBITING THE WARNING LIGHT ON, DUE TO REPEATED ABS AND TRAC, WITH DIAGNOSTIC TROUBLE CODE (DTC) C1231 PRESENT AND TO ADDRESS CONDITION THE ABS ECU LOGIC WAS MODIFIED. MODEL 2009-2011 CAMRY. *PE |
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.