Attention: TDR Forum Junkies Am wanting to install a lockup/mystery switch with an LED to let me know when I have the switch on (don't care to know when the t/c is in lockup if the switch isn't on, so that isn't an issue).
Here is a schematic I have drawn up of what i think will work. The diode is obviously so no positive voltage or current flows towards the PCM when the switch isn't on.
Is there an easier way so I won't throw codes when I have the switch on? As I said, I only want the LED to come on when the switch is on, but if I don't put the diode in there, I'm afraid the power will backfeed to the PCM and possibly throw codes (I believe Cummins4Life was having these problems).
Switch WILL NOT be used for racing until important (read: billet) updates are done to the transmission. Only for downhill slowdown and to say I have it.
Thanks, Josh
EDIT: Forgot to add, obviously the negative side of the LED is connected to the wire coming from the diode/PCM as you are actually grounding that wire to "induce" lockup of the t/c, and this will complete the LED's circuit making it "light-up"!
Here is a schematic I have drawn up of what i think will work. The diode is obviously so no positive voltage or current flows towards the PCM when the switch isn't on.
Is there an easier way so I won't throw codes when I have the switch on? As I said, I only want the LED to come on when the switch is on, but if I don't put the diode in there, I'm afraid the power will backfeed to the PCM and possibly throw codes (I believe Cummins4Life was having these problems).
Switch WILL NOT be used for racing until important (read: billet) updates are done to the transmission. Only for downhill slowdown and to say I have it.
Thanks, Josh
EDIT: Forgot to add, obviously the negative side of the LED is connected to the wire coming from the diode/PCM as you are actually grounding that wire to "induce" lockup of the t/c, and this will complete the LED's circuit making it "light-up"!
