DTC P1815 Buick
Control Module Communication Bus B Off
Control Module Communication Bus B Off
Description
Supply voltage to the modules are in the normal operating range. The ignition switch in any position other than START.
Cause and Solution
The module setting the DTC has attempted to establish communications on the PTLAN serial data circuits more than 3 times.
Video Guide
Diagnostic Info
- DTC Code: P1815
- Brand: Buick