P/S System Symptom Diagnosis

Precautions: Precautions for Diagnosing Trouble · Precautions for Steering · General safety (00)

This section describes trouble diagnosis of the P/S system parts whose troubles are not indicated by SUZUKI scan tool. When no malfunction is indicated by SUZUKI scan tool and steering basic parts as described in Steering Symptom Diagnosis are all in good condition, check the following power steering system parts which may be possible causes for each trouble symptom of steering.

NOTE:

Perform Steering Force Check and/or Front Wheel Alignment Inspection and Adjustment before diagnosis.

Condition	Possible Cause	Action
Steering wheel feels heavy	Improper installation of steering wheel	Install steering wheel correctly.
	Poor performance of torque sensor	Check torque sensor.
	Poor performance of P/S motor	Check P/S motor.
	Malfunction of steering gear case assembly	Replace steering gear case assembly.
	Vehicle speed data provided through CAN communication	Check vehicle speed data.
Steering wheel feels heavy momentarily when turning it to left or right	Malfunction of steering gear case assembly	Replace steering gear case assembly.
Poor recovery from turns	Poor performance of torque sensor	Check torque sensor.
Poor recovery from turns	Malfunction of steering gear case assembly	Replace steering gear case assembly.
Vehicle pulls to one side during straight driving	Poor performance of torque sensor	Check torque sensor.
Vehicle pulls to one side during straight driving	Malfunction of steering gear case assembly	Replace steering gear case assembly.
Abnormal noise	Malfunction of P/S motor (built in steering column assembly)	Replace steering column.