CODE Error 1602

 

P1602 Code - Engine Control Module Supply Voltage Low From Battery

What are the Possible Causes of the Code P1602?

Faulty Engine Control Module (ECM)

Engine Control Module (ECM) harness is open or shorted

Engine Control Module (ECM) circuit poor electrical connection

How to Fix the P1602 Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.