P278B

Kick Down Switch Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

No response when pressing the Kick Down button
Switching to emergency mode
The Check Engine light comes on
Reduced acceleration dynamics
Unexpected activation of Kick Down mode

Causes

Kick Down button malfunction
Open or short circuit in the circuit
Wiring harness damage
Poor contact in connectors
Problems with the engine control unit

How to Fix

Check the operation of the Kick Down button
Diagnose the circuit for open circuit and short circuit
Inspect the condition of connectors and wires
Test button resistance
If necessary, replace the Kick Down button

Related codes

P278A P2270 P2122