
Engine control system
EFI system
On-vehicle inspection
1. Inspection of the voltage of power steering oil pres-
sure sensor
Measure the voltage between PS terminal and E2 terminal
with ohmmeter
2. Inspection of stepping motor
(a) With engine running at idle speed, pull out the connection harness of stepping motor, and the change
of engine rotating speed indicates that the stepping motor operates normally.
(b) Pull out the connection harness of stepping motor, and measure the terminal current with universal
meter. When engine is running, there being impulse current output at the terminal indicates that there
is no trouble with ECU and stepping motor control system, and if idling is not stable at the moment
and deviates greatly from specified value, the stepping motor should be replaced.
If there is no
impulse current output at the terminal, turn on air conditioner to test again, and still no impulse
current output indicates that there is trouble with ECU and stepping motor control system circuit.
(c) Check the malfunction of stepping motor circuit with diagnostic instrument.
Engine control system·- EFI system
8
Conditions
Voltage (V)
Not turning steering wheel with
engine at idle speed
Turning steering wheel with
engine at idle speed
0-1.5
Summary of Contents for FC
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Page 302: ...Light Side turning light Side turning light Components Side turning light 291 ...
Page 409: ...Electric glass lifter Electrical schematic diagram Electric glass lifter 398 ...
Page 412: ...Electric rearview mirror Electrical schematic diagram Electric rearview mirror 401 ...
Page 413: ...Reversing radar system Electrical schematic diagram Reversing radar system 402 ...
Page 414: ...Safety airbag system Electrical schematic diagram Safety airbag system 403 ...
Page 418: ...Combination instrument Electrical schematic diagram Combination instrument 407 ...