R—Replace I —Inspect After inspection, clean, adjust, repair or replace if necessary.
NOTE
SEC
and
PAGE
Service at the interval listed x 1,000 miles (or km) or after that number of months, whichever comes first.
19-6
19-8
19-18
Under severe driving conditions, service these items more often.
Severe Driving Conditions Items with an or in the chart will need service more often, if you drive in some
severe conditions.
The conditions are:
A: Repeated short distance driving.
B: Dusty conditions.
C: Severe cold weather. D: Areas with road salt or other corrosive materials.
E: Rough or muddy roads. 18-14
18-30
17-6
17-21
17-68
18-7
19-62
19-41
19-43
19-44 19-10
19-69 19-4
19-26
The services are:
Clean the air cleaner element every 7,500 miles (12,000 km) or 6 months and replace every 30,000 miles(48,000 km) or 24 months under condition B or E.
Replace engine oil and oil filter every 3,750 miles (6,000 km) or 3 months under condition A or B.
Inspect front brake discs and calipers, and rear brake discs, calipers and pads every 7,500 miles (12,000
km) or 6 months under condition A, B, D or E.
Inspect the power steering system every 7,500 miles (12,000 km) or 6 months under condition B, C or E.ProCarManuals.com
Self-Diagnosis Function
The EPS control unit monitors the system inputs and outputs, and the driving current of the motor. If there is a problem
in the system, the control unit turns the system off by actuating the relay in the power unit. Power assist stops and
normal manual steering operation resumes. The control unit also turns the EPS indicator light on to alert the driver, and
memorizes the problem in the form of a code. Connecting the terminals of the service check connector with a jumper
wire enables the EPS indicator light to blink the problem code when the ignition switch is turned on.
Unloader Control
If the steering wheel is turned fully and held in the full-lock position, the steering torque reaches the maximum point,
and an over-current flows to the motor and the power unit. The control unit detects this and reduces the current flow
to the motor.
Average Moving Current Control
The electric current flow to the motor is estimated from the current values detected by the current sensor, and the aver-
age current is obtained at two second intervals. The motor driving current is suppressed when the average current value
exceeds a predetermined marginal value. The control unit regurates the motor current during continuous loading to sup-
press any excessive temperature rise in the power unit and the motor.
Over-Voltage Control
If there is an excessive increase in power source voltage due to a poor battery condition, an alternator voltage regulator
problem, etc., the motor assisting force increases, resulting in excessive control. To prevent this, the control unit signals
to the power unit are corrected to ensure that adequate assisting force is generated.ProCarManuals.com
Troubleshooting Procedures
Under normal conditions, the EPS indicator light in the gauge assembly comes on when the ignition switch is turned
to the ON position, then goes off after the engine is started. This indicates that the bulb and its circuits are operating
correctly.
EPS INDICATOR LIGHT
When the EPS control unit senses an abnormality in the system, the control unit memorizes the problem, the EPS indica-
tor light blinks at equal intervals, and the power steering assist is turned off.
When the EPS indicator light has been reported on, connect the two terminals of the service check connector with a
jumper wire. Then turn on the ignition switch and observe the blinking frequency.
SERVICE CHECK
CONNECTOR (BLU)
GRN/WHT
SERVICE CHECK CONNECTOR (BLU)
BLUProCarManuals.com
