Might be best for your mechanic friend to do this because we wouldnt like to fry your computer now would we?
Turn ignition on and backprobe the ECM and measure the voltage between ground and ECM harness connector terminalls 110 and 112 (red/green wire) if battery exists proceed to next step. If no voltage check for power supply to ECM.
Bacprobe ecm measure voltage between ground and ecm harness terminall 31 (red wire) if voltage exists proceed. If not check power supply for ecm
Turn ignition off and disconnect 116 pin ecm harness connector. Disconnect the intelligent power distributon module 12 pin harness and e122 connector. The power distribution module is located at right front corner of vehicle. Check for continuity of red wire between ecm harness terminal 31 and power distribution module harness terminall 35. Should have continuity. Check for short to ground or short to voltage. If find a problem leave connector harness disconnected and go to next step. If no problem found. Have power distribution module tested or replaced.
Check for loose corroded and damged connections on inline harnesses e27 and e130 check for poor loose and coroded between e20 and e32 as well. And as always check for open or shorts between circuits of ecm and power distribution module
repair as needed.
Turn ignition off and check continutiy in black wire between ground and ignition coil harness of each coil terminal 2 should have continutiy. Check for harness short to voltage.
Check for loose damaged corroded connections on harness connectors f43 and f201. Check for open or short between ignition coils and ecm.
Check for coninutity between igniiton coil harness connector terminal 1 and ecm harness terminalls 5, 6, 7, 15, 16, 17. Shoudl have continuity at each. Also check for short to ground or voltage.
Check ignition coil with power transistor.
Resistance on condensor 2 pin harness connector should read 1m/ohm @ 77degrees Fahrenheit
disconnect coil 3 pin harness connector measure resitastence between spec. Terminals.
1 and 2 should be infinit or except zero
1 and 3 shoudl be except zero
2 and 3 shoudl be except 0
Sunday, December 6th, 2009 AT 4:46 PM