Front Impact Sensors: Inspection

WARNING: If a dent, crack, deformation or rust is detected, replace with a new sensor.

Check the front impact sensor for dents, cracks, deformation or rust.
WARNING: If the resistance value shows the short-circuit or the open-circuit, be sure to replace the front impact sensor with a new one.
Check the short-circuit or the open-circuit between the front impact sensor terminals.
When short-circuit: 2 ohm and less

When open-circuit: 2 mega ohm and over

Fig 1: Checking Short-Circuit Or Open-Circuit Between Front Impact Sensor Terminals
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check for continuity between the terminal and the bracket. When there is continuity, it shows insufficient insulation of the sensor. Replace the sensor with a new one.
Check for deformation and rust on the radiator support panel.

Fig 2: Checking Continuity Between Terminal And Bracket
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.