Test N: Left Front Belt & Buckle Assembly PRETENSIONER Circuit Resistance Out Of Range (DTC B1230): Description
WARNING: This page is about a different car, the 2002 Ford RV Cutaway, 2002 Ford Econoline, 2002 Ford E550 Super Duty, 2002 Ford E450 Super Duty, and 2002 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
Electronic Crash Sensor (ECS) module monitors resistance of pretensioner circuit by measuring resistance between ECS module connector terminals No. 24 and 25. If ECS module detects low or high resistance, it will store Diagnostic Trouble Code (DTC) B1230 in memory and flash Code 46 on AIR BAG warning light.