FUEL SYSTEM <4D5-step
III
> -
Troubleshooting
13-44
Item
No.
Reference
page
Code No.
or inspec-
tion proce-
dure No.
Value to be
determined
as normal
Inspection conditions
Check item
25
Accelerator
pedal
position
Ignition switch: ON
Accelerator pedal:
Idling position
0 %
Code No.
27
13-20
position
sensor (sub)
Accelerator pedal:
Fully opened position
99 - 100 %
31
EGR valve
position
Engine: After warming
up the engine
Idling under no load
2.3 - 3.3 V
Code No.
51
13-26
position
sensor (tar-
get value)
up the engine
Engine is suddenly
raced
Momentarily
decreases
(0.3 - 0.7 V)
51
32
EGR valve
position
Engine: After warming
up the engine
Idling under no load
2.3 - 3.3 V
Code No.
51
13-26
position
sensor (ac-
tual value)
up the engine
Engine is suddenly
raced
Momentarily
decreases
(0.3 - 0.7 V)
51
33
Variable
geometry
Engine: After warming
up the engine
Idling
53 - 59 kPa
Code No.
52
13-27
geometry
control pres-
sure sensor
up the engine
Engine is suddenly
raced
Momentarily
increases
52
NOTE
*
1
: The opening degree of the timing control valve is converted into percentage. (0 %: timer non-advanced angle,
100 %: timer maximum advanced angle)
*
2
: The opening degree of the EGR solenoid valve is converted into percentage.
Item
No.
Check item
Inspection conditions
Value to be
determined
as normal
Code No.
or inspec-
tion proce-
dure No.
Reference
page
41
Idle switch
Ignition switch: ON
(check by repeated
accelerator operation)
Release the foot from
the accelerator pedal.
ON
Code No.
23
13-17
y
accelerator operation)
Step on the accelerator
pedal slightly.
OFF
43
A/C switch
Engine: Idling (The
A/C
compressor
should be in operation
A/C switch: ON
ON
Procedure
No. 26
13-41
should be in operation
when the A/C switch is
“ON”)
A/C switch: OFF
OFF
44
Ignition
i h ST
Ignition switch: ON
Engine: Stop
OFF
–
–
g
switch-ST
g
Engine: Cranking
ON
45
Ignition
switch-IG
Ignition switch: ON
ON
–
–
46
Control
relay
Ignition switch: ON
ON
–
–
47
A/C relay
Engine: Idling after
warming up the engine
A/C switch: OFF
OFF
(A/C
compressor
clutch not in
operation)
Procedure
No. 26
13-41
A/C switch: ON
ON
(A/C
compressor
clutch in
operation)