Hydraulic Pump Electric Power Steering Warning Lamp

HYDRAULIC PUMP ELECTRIC POWER STEERING WARNING LAMP

Component Function Check


1. CHECK THE ILLUMINATION OF THE HYDRAULIC PUMP ELECTRIC POWER STEERING WARNING

LAMP
Check that the hydraulic pump electric power steering warning lamp turns ON when ignition switch turns ON.
Then, hydraulic pump electric power steering warning lamp turns OFF after the engine is started.
Is the inspection result normal?
YES- Inspection End.
NO- Perform trouble diagnosis. Refer to "Diagnosis Procedure" .


Diagnosis Procedure


1. PERFORM SELF-DIAGNOSIS

With CONSULT
1.Turn the ignition switch OFF to ON.
2.Perform "EPS" self-diagnosis.
Is any DTC detected?
YES- Check the DTC. Refer to "DTC Index" Testing and Inspection.
NO- GO TO 2.

2. CHECK HYDRAULIC PUMP ELECTRIC POWER STEERING WARNING LAMP SIGNAL

With CONSULT
1.Turn the ignition switch ON.
2.Select "WARNING LAMP" in "DATA MONITOR" of "EPS".
3.Check that the item in "DATA MONITOR" is "On".

CAUTION:
Never start the engine.
4.Start the engine.

CAUTION:
Never drive the vehicle.
5.Check that the item in "DATA MONITOR" is "Off".
Is the inspection result normal?
YES- Perform the trouble diagnosis for combination meter power supply circuit. Refer to "COMBINATION METER : Diagnosis Procedure" Combination Meter.
NO- GO TO 3.

3. CHECK TERMINALS AND HARNESS CONNECTORS

Check the power steering control module pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES- Power steering control module is malfunctioning. Replace power steering oil pump assembly.
Refer to "Removal and Installation" Removal And Installation.
NO- Repair or replace the malfunctioning component.