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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 943 (Body Control Module (BCM) - DTCS B182C-11 To U1433-24 - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> C1006-13-Brake Fluid Level Input - Circuit Open >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The Body Control Module (BCM) provides a reference voltage on the brake fluid level signal circuit through a pull-up resistor that is connected to battery voltage. The Brake Fluid Level Switch switches the brake fluid level signal circuit to ground when the fluid level is low. A diagnostic resistor internal to the switch is placed in parallel with the switch.

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