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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Body Control Module (BCM) - DTCS B1107-18 To B145E-01) >> DTC Troubleshooting >> B1107-19 Turn Rear_Lateral Light Left - Circuit Current Above Threshold >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.

The BCM provides a pulsed voltage output through the rear turn signal control circuits. The turn signal control circuits connect to the Turn Signal Lamps. A ground path for the lamps is present through the harness to the sheet metal. The BCM monitors the rear turn signal drivers as well as the mirror turn signal drivers.

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