I was given a 2005 Jeep Wrangler Sport (RHD) that does not run. We thought it was the starter but bypassed the relay for it to crank, which means the starter is not bad. It does not start because of something in the Automatic Shutdown Relay not sending spark... that needs more troubleshooting. I am pretty sure That the only things that stop the starter relay are the neutral safety switch and the ignition switch. I have unplugged the wiring to the neutral safety switch because the switch itself is in the transmission and I don't want to go that far. I have since tried to bypass the neutral safety switch by connecting cav 1 to cav 10 (refer to the link for picture). I know that cav 1 works because I put the car in run and took a multimeter and got steady voltage. Would this wiring from cav 1 to cav 10 bypass the switch making it crank. So far it has not worked for be when i put the car in the starting position it still doesn't crank. Does this rule out that the ignition switch is bad?. When I put the key in start position i hear a click behind the passenger glovebox. Does that mean anything? Thanks! Neutral Safety Switch Wiring Diagram
You made me cringe a little, @jacobdaboi
The PCM receives a voltage signal from the Transmission Range Sensor when the transmission is in Park or Neutral on Pin 10, YL/DB range sensor connector and then, when receiving a start request (key in Start), energizes the starter relay's control side (coil) ((through a different pin on the PCM)) (((by providing a Ground))) and the relay's load side circuit closes and provides power to the starter solenoid.
But the PCM is looking for a Ground signal on Pin 10 NOT a battery Power voltage signal on Pin 10 when the transmission is in Park or Neutral.
Please use the direct image link so we can actually see it....
(and it's not really a wiring diagram. Just a pinout)
do you have a schematic for the starting circuit?