Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 80

Code No. 14 Throttle position sensor system
Range of Check
D Ignition switch: ON
D Excluding 60 seconds after the ignition switch is turned to ON or immediately
after the engine starts.
Set conditions
D When the idle position switch is ON, the sensor output voltage is 2 V or more
for 4 seconds.
or
D The sensor output voltage is 0.2 V or less for 4 seconds.
MUT-II Data list
26 Idle position switch system
OK: With the throttle valve at the
idle position: ON
With the throttle valve slight-
ly open: OFF
OK
Check the throttle position sensor.
(Refer to P.13D-87.)
OK
Measure at the throttle position sensor
connector A-73.
D Disconnect the connector, and
measure at the harness side.
D Voltage between 1 and earth
(Ignition switch: ON)
OK: 4.8 - 5.2 V
D Continuity between 4 and earth
OK: Continuity
OK
Measure at the engine-ECU
connector B-51 <M/T> or the
engine-A/T-ECU connector B-111
<A/T>.
D Connect the connector.
D Voltage between 84 <M/T>, 78
<A/T> and earth (Ignition switch:
ON)
OK: 0.3 - 1.0 V (Throttle valve
at idle position)
4.5 - 5.5 V (Throttle valve
fully open)
NG
Check the following connector:
A-73
OK
Check trouble symptom.
NG
Check the harness wire between en-
gine-ECU <M/T> or engine-A/T-ECU
<A/T> and throttle position sensor con-
nector, and repair if necessary.
MPI -
Troubleshooting
NG
Check the idle position switch system.
(Refer to P.13D-52, INSPECTION
PROCEDURE 29.)
NG
Replace
NG
Check the following connector:
B-51 <M/T>, B-112 <A/T>
Check trouble symptom.
Check the harness wire between the
engine-ECU <M/T>
A/T-ECU <A/T> and the throttle posi-
tion sensor connector.
Replace the engine-ECU <M/T> or en-
gine-A/T-ECU <A/T>.
OK
Check the following connector:
B-51 <M/T>, B-111 <A/T>
Check trouble symptom.
Replace the engine-ECU <M/T> or en-
gine-A/T-ECU <A/T>.
NG
Repair
Probable cause
D Malfunction of the throttle position sensor or
maladjustment
D Improper
short-circuited harness wire of the throttle position
sensor circuit
D Improper "ON" state of idle position switch
D Short circuit of the idle position switch signal line
D Malfunction
engine-A/T-ECU <A/T>
NG
Repair
OK
NG
NG
Repair
or engine-
OK
NG
Repair
OK
NG
13D-15
connector contact, open circuit
of the engine-ECU <M/T>
or
or