DDM/ PDM

The DDM and PDM supply voltage and ground to illuminate their respective exterior mirror BLIS ®/ CTA LED based on messages received from the SODL and SODR. The modules are capable of storing Diagnostic Trouble Codes (DTCs) for the BLIS ® or CTA system when a concern exists. The DDM and PDM communicate through the MS-CAN.

The DDM and PDM require PMI when replaced. Refer to: Module Configuration - System Operation and Component Description .