Is this an automatic? When problem occurs, did you try cranking in neutral? The diagram below is 6 cylinder with tcm. At the relay top, red wire is hot all the time, yellow wire goes hot with key in the crank position. The ground for control side of relay, is through the neutral switch. No ground or voltage and the relay won't energize.
Friday, September 2nd, 2011 AT 5:23 PM