P21C8
Reductant Control Module Power Relay/Relays Control Circuit Low.
- Generic
- Powertrain
- Generic code
How this code is built
- P
- SystemPowertrain
- 2
- Defined bySAE, the same on every car
- 1
- AreaFuel and air metering
- C8
- FaultThe specific fault in that area
Guide
Writing the guide for P21C8. The first open of a code takes up to a minute.