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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 14 (Body Control Module (BCM) - DTCS B106A-12 To B1A90-51) >> DTC Troubleshooting >> B1642-19-Rear Left Turn Lamp Control - Over Current >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2017 Jeep Cherokee. 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 circuit. The rear turn signal control circuit connects to the Turn Signal Lamp. A ground path for the lamps is present through the harness to the sheet metal. For additional information on the Turn Signal Lamps operation. Refer to OPERATION .

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