P1902 Kickdown Solenoid Relay Control Circuit Fault

Category: Powertrain - Transmission
Severity: Check Engine Light
Applies to: Older Ford automatics with kickdown relays

What does P1902 mean on a Ford?

P1902 — Kickdown Solenoid Relay Control Circuit Fault. This Ford-enhanced code applies to Older Ford automatics with kickdown relays.

Common causes of P1902

Failed kickdown relay
Open relay control circuit
Blown kickdown fuse
Corroded relay socket
Faulty kickdown switch

How to fix P1902

Test kickdown switch operation
Swap the relay
Check the fuse and socket
Verify control voltage at the relay
Replace the relay or switch