# P0121 on the 2003 Cadillac CTS

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.

Nobody has written a description of this code yet.

## Bulletins for this model year that name P0121

- [10005466](https://open.wenmarpro.com/bulletins/10005466), 2004-02-28: INTERMITTENT NO POWER, STALL, MALFUNCTION INDICATOR LAMP \(MIL\) WITH TPS, TAC, TCM DIAGNOSTIC TROUBLE CODES \(DTCS\) SET P0120, P0121, P0122, P0123, P0220, P0221, P0223, P0225, P0226, P0227, P0228, P0638, P0700, P1779, P1780, P1995, P2119, P2176. \*TT
- [10003641](https://open.wenmarpro.com/bulletins/10003641), 2003-10-27: SERVICE ENGINE SOON \(SES\) LIGHT COMING ON AND A P0121 TPS CODE STORED OR RELATED CODES. \*TT