Sorry I'm a day late...here goes:
Two fuses to check: fuse 102 (20Amp) and fuse 101 (30Amp). Fuse 101 is for the battery to starter relay to starter motor. If that's blown, starter gets no "juice".
Fuse 102 supplies 12 volts to ignition switch; when key is in "start" position, voltage is applied to red/light brown to central junction box (fuse box) to dark brown/orange wire. Then to Digital Transmission Range switch (to verify transmission is in neutral or park; located on lower left side of automatic transmission). Voltage from this switch is then connected to Tan/Red wire to starter relay (in fuse box), then to light green/violet wire to powertrain control module (on passenger side firewall; this tells PCM to energize coils (spark)); at same time, the starter relay allows voltage off of fuse 101 to starter motor solinoid via yellow/light blue wire; solinoidd completes path of "direct" battery voltage via a red fusible link wire. Fusible link wires all are off of battery "+" terminal; one goes to starter motor, one goes to alternator, and one goes to central junction box (fuse box).
So, I'd first check fuse 101 and 102, then perhaps the digital transmission range sensor, then any and all wiring inbetween these circuits.
Last edited by Bucko; 08-06-2009 at 05:22 PM.