OK, got it! Thanks for making correction. In the future one can use this info to fix damaged RBCM without paying a hefty price for a whole new module!In my RBCM board was established ZXMN6A08E6. This mono MOSFET in SOT23-6.
But I had to replace it with a 2sk3065 (SC-62). Unfortunately no photos.
Bad RBCM confirmed. This un-fused module definitely is a bad design by Mazda. I think it went bad by itself after about 3 years is not a good indicator of quality product either. LED or incandescent, it shouldn't matter. In fact, using LED should draw less current and should be able to prolong the lifecycle of the RBCM.Dealer says bad RBCM. Not providing ground on cargo light circuit.
For turn signals either the older mechanical flasher relay or newer electronic flasher "relay" needs the proper impedance to make on/off cycle work correctly with designed frequency. If the relay designed for incandescent bulb which has lower impedance is now connected to the LEDs, parallel low-ohm resisters are needed to decrease impedance for LEDs in order to match the impedance of incandescent bulbs to keep the on/off frequency from the relay the same.LED with resistor should draw the same current, no? Otherwise will flicker.
Was putting a new bulb in because the old one was burnt, removed it and was about to push the new one in, it lit up because it touched contacts and it slipped and fell out so I picked it up and put it back again and now it doesn*t work. I tried 5 more bulbs still no luck. It used to work before. Tried with test light and there*s power going to the light but doesn*t light up? So you guys are saying it might be rbcm. I scanned the module and no DTC stored. Went onto live data on trunk light. When tailgate is closed the switch is OFF, when I open the tailgate the switch is ON on the computer but still no light. Everything else the rbcm controls is working. Rear wipers, door locks, tailgate, stop lights etc. What*s wrong?
I believe your RBCM couldnt handle the sudden surge when you suddenly touch the contacts of bulb holder and the internal circuitry of RBCM got burned.Was putting a new bulb in because the old one was burnt, removed it and was about to push the new one in, it lit up because it touched contacts and it slipped and fell out so I picked it up and put it back again and now it doesnt work. I tried 5 more bulbs still no luck. It used to work before. Tried with test light and theres power going to the light but doesnt light up? So you guys are saying it might be rbcm. I scanned the module and no DTC stored. Went onto live data on trunk light. When tailgate is closed the switch is OFF, when I open the tailgate the switch is ON on the computer but still no light. Everything else the rbcm controls is working. Rear wipers, door locks, tailgate, stop lights etc. Whats wrong?