Mitsubishi MOTORS Space Runner 1999 Workshop Manual Supplement page 442

Terminal Check item
No.
45 A/C switch (1st channel)
51 Injector open circuit check
signal
52 Small lamp switch
57 Accelerator pedal position
switch
58 Tachometer output
71 Ignition switch – ST
72 Intake air temperature
sensor
73 A/C switch (2nd channel)
74 Fuel pressure sensor
75 M/T oil temperature sensor
76 Oxygen sensor
77 Sensor power supply
81 Power supply to accelerator
pedal position sensor (1st
channel)
80 Back-up power source
82 Ignition switch – IG
GDI –
Troubleshooting
Check requirements (engine condition)
Engine: idling A/C switch: OFF
A/C switch: ON
(Compressor is
operating)
Engine: Increase engine speed from
idle speed to 4,000 r/min.
Lighting switch: OFF
Lighting switch: ON (Taillamp: ON)
Ignition switch: Release the
ON
accelerator pedal.
Depress the
accelerator pedal
slightly.
Engine: 3,000 r/min
Engine: cranking
Ignition switch: Intake air temper-
ON ature: 0 C
Intake air temper-
ature: 20 C
Intake air temper-
ature: 40 C
Intake air temper-
ature: 80 C
Refer to GROUP 55 – Troubleshooting "Check at the A/C-ECU
terminals, engine-ECU output terminals."
Engine: idling
M/T oil temperature: 25 C
M/T oil temperature: 80 C
Engine: Warm up, and then hold the
engine speed at 2,500 r/min (Use a
digital voltmeter).
Ignition switch: ON
Ignition switch: ON
Ignition switch: OFF
Ignition switch: ON
13A-83
Normal condition
0 – 3 V
System voltage
Decreases slightly
(approx.0.7 V) from 4.5 V –
5.0 V.
0 – 3 V
System voltage
0 – 1 V
4 V or more
2.0 – 9.0 V
8 V or more
3.2 – 3.8 V
2.3 – 2.9 V
1.5 – 2.1 V
0.4 – 1.0 V
0.3 – 4.7 V
2.4 – 2.7 V
0.5 – 0.8 V
0 and 0.8 V alternates.
4.5 – 5.5 V
4.5 – 5.5 V
System voltage
System voltage