Question

1996 GMC Z71 5.7L with engine code P1351, what is ignition coil circuit high voltage?

Answer 1

Hi there

This code is for high voltage to the ignition control module, not the coil. This usually means the ICM is faulty and needs to be replaced. You can also have an issue with the wiring to the control module itself. Normal cause however is the ICM.

Answer 2

P1351 GMC - Ignition Control Module Circuit High Voltage

Read more: https://www.autocodes.com/p1351_gmc.html