DTC C1221-86 Fiat
Pcm Bus Signal Invalid
Pcm Bus Signal Invalid
Description
Body Control Module (BCM) is configured correctly. Bus messages not received from the Powertrain Control Module (PCM) for approximately two to five seconds.
Cause and Solution
Dtcs Related To Battery Voltage, Ignition, Or Vin Messages
Powertrain Control Module Power And Ground
Bcm Not Configured Correctly
Powertrain Control Module (Pcm)
Module That Set This Dtc
Signal Invalid
This sub type is used for failures where some circuit quantity, reported via serial data, is not plausible given the operating conditions.
Video Guide
Diagnostic Info
- DTC Code: C1221-86
- Brand: Fiat