DTC C1477 Cadillac
Hybrid Battery System Precharge Time Too Long
Hybrid Battery System Precharge Time Too Long
Description
P1A20 Ignition voltage is 9-18 V at the drive motor generator battery control module. There are less than 4 hybrid battery voltage sensor faults.
Cause and Solution
140 milliseconds after the start of precharge, hybrid battery calculated voltage and hybrid battery terminal voltage are 23 V apart.
Video Guide
Diagnostic Info
- DTC Code: C1477
- Brand: Cadillac