Symptom Chart

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

Symptom Chart

Condition	Possible Sources	Action
The shift interlock system does not release or lock correctly	Brake pedal position (BPP) switch Circuitry Gearshift lever Brake shift interlock module Brake shift interlock relay Ignition relay	Go to Pinpoint Test A .
The shift control is out of correct gear relationship	Shift cable adjustment Shift cable and bracket Shift control linkage	Go to Pinpoint Test B .
The transmission control switch is inoperative	Transmission control switch Circuitry	Go to Pinpoint Test C .
The transmission control switch or indicator lamp is inoperative or not functioning correctly	Circuitry Gearshift selector lever Powertrain control module (PCM)	Go to Pinpoint Test C .