Code 13 - Front Impact Sensor Or Air Bag Circuit Shorted To Ground: Description

Diagnostic monitor measures voltage at terminal No. 11 of diagnostic monitor connector. Voltage at terminal No. 11 varies with charging system voltage. Note that circuits No. 614 (Gray/Orange wire) and No. 615 (Gray/White wire) are connected through driver-side air bag. Also, note that circuit No. 615 is connected to front impact sensor feed circuits No. 617 (Pink/Orange wire) and No. 619 (Pink/White wire) through a diode inside of diagnostic monitor. If diagnostic monitor measures a voltage of 2 volts or less at terminal No. 11, Code 13 will set. When Code 13 sets, diagnostic monitor blows its internal thermal fuse. This disables air bag deployment circuit. If short to ground is corrected, voltage at terminal No. 11 will return to normal, and a fault Code 51 will set, indicating an open thermal fuse.