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Home >> Mitsubishi >> 2021 >> Mirage LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System Diagnosis >> Check At The Engine Control Module (ECM) Terminal
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Check At The Engine Control Module (ECM) Terminal

  1. Connect a needle-nosed wire probe to a voltmeter probe.
  2. Insert the needle-nosed wire probe into each of the ECM connector terminals from the wire side, and measure the voltage while referring to the check chart.
    NOTE:
    • Make the voltage measurement with the ECM connector connected.
    • You may find it convenient to pull out the ECM to make it easier to reach the connector terminals.
    • The checks can be carried out off the order given in the chart.
    G09628674Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    CAUTION: Short-circuiting the positive (+) probe between a connector terminal and ground could damage the vehicle wiring, the sensor, ECM or all of them. Be careful to prevent this!
  3. If voltmeter shows any division from standard value, check the corresponding sensor, actuator and related electrical wiring, then repair or replace.
  4. After repair or replacement, recheck with the voltmeter to confirm that the repair has corrected the problem.
G11277853Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
TERMINAL NUMBER TERMINAL CODE CHECK ITEM CHECK CONDITION NORMAL CONDITION
94 CNTS Cruise control switches power supply Ignition switch: "ON" position All switches: Released. 4.7 to 5.0 V
Cruise control ON/OFF switch: Pressed. 0.9 to 1.7 V
"CANCEL" switch: Pressed. 1.9 to 2.7 V
"SET-" switch: Pressed. 2.9 to 3.6 V
"RES+" switch: Pressed. 3.8 to 4.5 V
121 BRK Stoplight switch (brake switch) Ignition switch: "ON" position Depress the brake pedal. Battery positive voltage
Release the brake pedal. 1 V or less
128 CLT1 Clutch interlock switch (for cruise control system) <M/T> Ignition switch: "ON" position Release the clutch pedal. 10 V or more
Depress the clutch pedal. 1 V or less