VDC(diag)-134
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
General Diagnostic Table
Poor change-
direction-opera-
tion stability of
TCS
Deviation to
right or left
direction
• VDCCM&H/U
• Defective ABS wheel speed sensor or
sensor gap
• Defective steering angle sensor or
improper neutral position
• Defective yaw rate & lateral G sensor
or improper installation
• Brake caliper
• Brake pad
• Wheel alignment
• Road surface (uneven)
• Road with crowns or banks
• Tire specifications, tire wear and air
pressures
• Incorrect wiring or piping connections
• Disc rotor
• Brake pipe
• Axle and wheels
• Suspension play or fatigue (poor damping)
Vehicle spin
• VDCCM&H/U
• Defective ABS wheel speed sensor or
sensor gap
• Defective steering angle sensor or
improper neutral position
• Defective yaw rate & lateral G sensor
or improper installation
• Brake pad
• Tire specifications, tire wear and air
pressures
• Incorrect wiring or piping connections
• Brake caliper
• Brake pipe
Steering wheel drag while driving
• VDCCM&H/U
• Defective ABS wheel speed sensor or
sensor gap
• Defective steering angle sensor or
improper neutral position
• Defective yaw rate & lateral G sensor
or improper installation
• Incorrect wiring or piping connections
• Power steering system
• Brake caliper
• Brake pad
• Disc rotor
• Wheel alignment
• Road surface (uneven)
• Road with crowns or banks
• Suspension play or fatigue (poor damping)
• Tire specifications, tire wear and air pressures
VDC operates while driving nor-
mally.
• VDCCM&H/U
• Defective ABS wheel speed sensor or
sensor gap
• Defective steering angle sensor or
improper neutral position
• Defective yaw rate & lateral G sensor
or improper installation
• Wheel alignment
• Road surface (uneven)
• Road with crowns or banks
• Suspension play or fatigue (poor damp-
ing)
• Tire specifications, tire wear and air
pressures
• Incorrect wiring or piping connections
• Power steering system
Symptom
Main probable cause
Other probable cause
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