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Home >> Mercury >> 2005 >> Mountaineer 2WD V8-4.6L SOHC VIN W >> Repair and Diagnosis >> Brakes and Traction Control >> Antilock Brakes / Traction Control Systems >> Testing and Inspection >> Pinpoint Tests >> Q: the Stability Assist Switch Indicator Is Never/Always on

Q: the Stability Assist Switch Indicator Is Never/Always on

Pinpoint Test Q: The Stability Assist Switch Indicator Is Never/Always On

Normal Operation
Circuit 1003 (GY/YE) provides voltage to the stability traction control switch. Ground for the stability traction control indicator lamp is provided and controlled by the Anti-Lock Brake System (ABS) module through circuit 960 (BK/LB).

Possible Causes
^ circuit 1003 (GY/YE) open
^ circuit 960 (BK/LB) open, short to voltage, or short to ground
^ stability traction control switch
^ ABS module

Tests Q1 - Q4:




Tests Q4 (continued) - Q6:




Test Q7:






PINPOINT TEST Q: THE STABILITY ASSIST SWITCH INDICATOR IS NEVER/ALWAYS ON