P1630 OBD Trouble Code

1 result found

P1630 - GM
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

System Voltage Error Conditions

Cause

Engine running, then the PCM detected the system voltage was under 9v or over 17v, either condition met for over 10 seconds.

Try also: https://www.obd-codes.com/p1630