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TRAILER TOW EXL-21 < SYSTEM DESCRIPTION > C D E F G H I J K M A B EXL N O P Component Parts Location INFOID:0000000009478451 Component Description INFOID:0000000009478452 1. Stop lamp switch E38 (with M/T) or 2. Brake pedal 3. BCM, M18, M19, M20 (view with lower 4. Trailer turn relay LH E164 5. IPDM E/R E121, E122, E124 6. Trailer turn relay RH E165 7. Trailer tow relay 2 E228 8. Trailer tow relay 1 E227 9. Combination switch (lighting and turn AWLIA2086ZZ Part name Description BCM • Receives lighting and turn signal requests from combination switch (lighting and turn signal switch). • Sends lighting signal request to the IPDM E/R to control the tail lamp relay via CAN communication. • Sends turn/hazard/brake control signal to the trailer turn relays. IPDM E/R Activates the tail lamp relay upon request from the BCM via CAN Combination switch (lighting and turn signal switch) Outputs lighting and turn signal requests to the BCM. |