Hey Scotty how you doing today brother love your videos I have a 2010 Dodge Grand Caravan SXT it just hit a hundred and seventy thousand miles the bas light and traction control lights come on I will have to pull over put it in park turn off the car turn it back on so the lights go reset itself because if I do that without turning the lights off and turn the car off I put it in park and it won't come out of park it'll stay in park until I turn off the car and then turn it back on the lights go off but I don't like that when the dashboard lights come on and especially then I recently changed the master cylinder and the brake booster will that be the cause of that I will gladly appreciate it any advice that you would give me thank you and God bless you brother
Here's what may be happening here. The brake fluid level sensor on your brake fluid reservoir is telling your TIPM (Totally Integrated Power Module) that you're low on brake fluid and the TIPM won't let you shift out of Park. (as well as turning off ABS and Traction Control while you're driving)
But the TIPM won't take any action until the "low fluid" signal is present for more than 5 seconds.
(maybe why you can turn off ((reset)) the TIPM's timer and then start the van)
So the drill is to make sure you have a full brake fluid reservoir, and if you do, inspect the wires and the connector for visible corrosion or damage. (don't just look at the visible wires, peel back that wire wrapping a few inches)
If they check out OK you can either take the gamble to replace the sensor (switch) or you can perform a voltage/ground test on the brake fluid level switch harness connector to confirm.
One wire should be being provided around 10 volts from the TIPM. The other wire (switch return) should be being provided Ground by the TIPM.
But wait, there's more after the pictures......
Another possible reason could be your brake pedal (stop light) switch. Afterall, you have to push the brake pedal to shift out of Park. The reason I chose the brake fluid level sensor/switch 1st is because you were just there, moving that wiring around when you replaced the master cylinder.
Since the problem didn't exist before the master cylinder replacement, it seems that's the most logical place to begin but that certainly doesn't rule out the stop light switch on the brake pedal.
Of course always check your fuses first. M1 and M37 are protecting those circuits but you can't rely of fuse maps to list every circuit, so check them all.
