New to the forum...
Wives Jeep Wrangler 97 will not start and Ive been troubleshooting the ignition system without any luck. Jeep will crank but gets no spark from the ignition coil. Changed crankshaft position sensor, camshaft position sensor, rotor, distributor, spark wires, and ignition coil. And still no spark, which led me to think it is the PCM. Ive opened up the backhousing of all three PCM connectors to check for pin issues but none where there. When looking at the wiring diagrams, they indicate C1, C2, C3, and for the pins use a letter and number, for example A17 on C2 for the 5V supply. However the physical PCM pins are numbered 1-11 on the first row and so on, without using any letters. What gives? Also how do u know which connector is C1 and C3? (obviously C2 is the middle connector from either side) Any help would be greatly appreciated, THANKS!