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Check At Ecu Terminal: Front-Ecu

WARNING: This page is about a different variant/trim than selected.
Fig 1: Front-ECU Terminal Connector
G04280073Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
NOTE: Terminal voltages cannot be measured as the front-ECU is installed directly on the relay box. Therefore, this information is only for reference.
FRONT-ECU TERMINAL VALUE CONDITION CHART

TERMINAL NO. INSPECTION ITEM INSPECTION CONDITION NORMAL VALUE
2 Output to headlight (high-beam) When headlights (high-beam) are on Battery positive voltage
3, 4 Battery power supply (for headlight) Always Battery positive voltage
5 Battery power supply (for taillight) Always Battery positive voltage
6 Output to headlight (low-beam) When headlights (low-beam) are on Battery positive voltage
7 Battery power supply (for ECU) Always Battery positive voltage
8 Output to taillights When taillights are on Battery positive voltage
21 Output to windshield washer When windshield washer is on Battery positive voltage
22 SWS communication line Always 0 - 12V (pulse signal)
23 Input of automatic stop signal to windshield wiper When windshield wiper is on Battery positive voltage
24 Power supply to ignition switch (ACC) Ignition switch: "ACC" Battery positive voltage
25 Input of backup signal from headlight switch Headlight switch: ON 0V
26 Input of backup signal to windshield wiper Windshield low-speed wiper switch or windshield high-speed wiper switch: ON 0V
27 Output to windshield wiper (low-speed) When windshield wiper is on (at low speed) Battery positive voltage
28 Output to windshield wiper (high-speed) When windshield wiper is on (at high speed) Battery positive voltage
30 Power supply to ignition switch (IG2) Ignition switch: "ON" Battery positive voltage
31 Ground Always 0V