Mitsubishi MOTORS CARISMA 1996, Service Bulletin

Page: 137 / 232

7
CHECK AT THE ENGINE-ECU TERMINALS
TERMINAL VOLTAGE CHECK CHART
ENGINE-ECU CONNECTOR TERMINAL ARRANGEMENT
Terminal
No. Check item Check condition (Engine condition) Normal condition
1 No.1 injector Engine: Idling after having warmed up 10 - 12 V
14 No.2 injector
2 No.3 injector
15 No.4 injector
3 Engine: Idling after having warmed up System voltage Air by-pass control solenoid
valve (ON/OFF)
Engine: 2,500 r/min System voltage
16 Engine: Idling after having warmed up System voltage Air by-pass control solenoid
valve (DUTY)
Engine: 2,500 r/min System voltage
4 Idle speed control servo (A)
17 Idle speed control servo (B)
5 Idle speed control servo (C)
18 Idle speed control servo (D)
Engine: Immediately after the warm
engine has been started
System voltage
↔
0 - 0,5 V
(changes repeatedly)
7 A/T-ECU communication
output Other than 0 V
59 A/T-ECU communication
input
Engine: Idling
Selector lever position: D range
8 A/C switch: OFF 0 - 0.1 V A/C relay Engine: Idling
A/C switch: ON Momentarily system voltage or
momentarily 6 V or more
10 No.1 ignition coil Engine: 2,500 r/min 0.1 - 0.3 V
11 No.2 ignition coil
23 No.3 ignition coil
24 No.4 ignition coil
GDI -Troubleshooting
13J-67
When the engine is at idle after it has been warmed
up, suddenly depress the accelerator pedal.
Momentarily decreases
slightly from 9 - 13 V.
<Correct>
<Correct>
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