DTC U1843 Cadillac
Exhaust Bypass Valve Control Circuit Malfunction
Exhaust Bypass Valve Control Circuit Malfunction
Description
During idling, voltage level at the output terminal (VSV3) ofECM is low (2 trip detection logic)
Cause and Solution
Open or short in VSV circuit for exhaust bypass valveVSV for exhaust bypass valveECM
Video Guide
Diagnostic Info
- DTC Code: U1843
- Brand: Cadillac