Symptom Chart

WARNING: This page is about a different car, the 2003 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to ANTI-LOCK BRAKES for connector numbers stated in the pinpoint tests.

PROBLEM SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the stability assist module	Circuitry. Stability assist module.	GO to PINPOINT TEST A: NO COMMUNICATION WITH THE STABILITY ASSIST MODULE .
Brake pedal position input circuit failure	Circuitry. Stability assist module.	GO to PINPOINT TEST B: DTC C1446 BRAKE LIGHT SWITCH PLAUSIBILITY ERROR .
The yellow ABS warning indicator does not self-check	Circuitry. Stability assist module.	GO to PINPOINT TEST P: THE YELLOW ABS WARNING INDICATOR DOES NOT SELF-CHECK .
Spongy brake pedal with no warning indicator	Base brake system. Air in brake hydraulic system.	REFER to DISC & DRUM .
The traction control is inoperative	Circuitry. Stability assist switch. Stability assist module. Base brake system.	GO to PINPOINT TEST I: THE TRACTION CONTROL IS INOPERATIVE . REFER to DISC & DRUM .
The stability assist/traction control indicator is never/always on	Circuitry. Traction control TC/stability assist switch. Stability assist module.	GO to PINPOINT TEST N: THE STABILITY ASSIST/TRACTION CONTROL INDICATOR IS NEVER/ALWAYS ON .
The stability assist system cannot be disabled	Circuitry. Traction control TC/stability assist switch. Stability assist module.	GO to PINPOINT TEST K: THE STABILITY ASSIST SYSTEM CANNOT BE DISABLED .
The stability assist indicator does not self-check	Circuitry. Stability assist module.	GO to PINPOINT TEST L: THE STABILITY ASSIST INDICATOR DOES NOT SELF-CHECK .