P1830 Transfer Case Counter-Clockwise Shift Relay Coil Short to Battery

Category: Powertrain - Transmission
Severity: Check Engine Light
Applies to: F-150, Super Duty, Explorer

What does P1830 mean on a Ford?

P1830 — Transfer Case Counter-Clockwise Shift Relay Coil Short to Battery. This Ford-enhanced code applies to F-150, Super Duty, Explorer.

Common causes of P1830

Shorted relay coil
Control wire shorted to power
Corroded socket
Module driver stuck on
Harness damage

How to fix P1830

Test for shorts to power
Swap the relay
Inspect the socket
Check module command
Repair or replace per tests