Symptom Chart: External Controls

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices. REFER to DIAGNOSTIC METHODS for information regarding Ford-specific diagnostic practices.

SYMPTOM CHART

Condition	Possible Sources	Actions
Brake shift interlock system does not release/lock correctly	Circuitry shorted to ground Fuse 18 (10A) Body Control Module (BCM) Brake Shift Interlock Actuator (BSIA)	REFER to DIAGNOSTIC ROUTINE C .
	Circuitry open or shorted to power Body Control Module (BCM) Brake Shift Interlock Actuator (BSIA)	REFER to DIAGNOSTIC ROUTINE D .
	Brake Pedal Position (BPP) switch	REFER to INTRODUCTION - GASOLINE MODELS .
	Transmission Range (TR) sensor	REFER to DIAGNOSTIC ROUTINE D .
Transmission Control Switch (TCS) does not operate correctly	Circuitry open/shorted Powertrain Control Module (PCM) Fuse 41 (7.5A) Transmission Control Switch (TCS)	REFER to DIAGNOSTIC ROUTINE B .
Selector lever linkage is out of correct gear relationship	Selector lever linkage out of adjustment Manual control lever not aligned correctly on the sensor (flat surfaces do not line up) Loose selector lever cable bracket	REFER to SELECTOR LEVER CABLE ADJUSTMENT .
Vibration - a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speed	Selector lever cable grounded out or loose	REFER to SELECTOR LEVER CABLE .