DTC B2957 Hummer
Lost Communication with TCM
Lost Communication with TCM
Description
time after ignition on, 500 mSec low value, low voltage, 9 V high value, low voltage, 9.5 V low value, high voltage, 16.0 V high value, high voltage, 16.5 V
Cause and Solution
Terminal resistor in ECMMalfunction in databus wiring or componentsReplace ECM
Video Guide
Diagnostic Info
- DTC Code: B2957
- Brand: Hummer