Code 24 - SAFING Sensor Diagnostic Circuit Open Or Low Resistance In Front Impact Sensor: Description

Each front impact sensor has an internal resistor. Diagnostic monitor uses these resistors in combination with 2 resistors inside diagnostic monitor to create a tightly controlled diagnostic voltage at terminal No. 11. The resistors inside of diagnostic monitor are connected to terminals No. 11 (circuit No. 614) and No. 12 (circuit No. 623) and are equal in value. Circuits No. 614 and 623 are connected together inside of safing sensor. If connection between circuits No. 614 and 623 inside of safing sensor is broken, resistor on terminal No. 12 is no longer in the diagnostic circuit. Both resistors are needed to pull diagnostic voltage up to correct value.