P1890
ECM Data Input Circuit.
- Cadillac
- Powertrain
- Manufacturer code
How this code is built
- P
- SystemPowertrain
- 1
- Defined byThe manufacturer
- 8
- AreaTransmission
- 90
- FaultThe specific fault in that area
Guide
Writing the guide for P1890. The first open of a code takes up to a minute.