...all power wire and all ground. PCM need all that to work. I saw people change PCM and it was a fuse bad check up and if you change the PCM you will have to reprogrammed before it works HOpe it ...
...and ground in your conector your scaner will not comunicate check dlc at pin 16 for b+ or 12v and checkpin 4 for chassis ground if yoouu have both of those you will need to go to pcm and check at ...
...ground on the metal PCM mounting bracket, just below the PCM. There are plastic harness retainers on the PCM bracket that secure the harnesses to the PCM bracket. If the harness conduit is ...
Question about Chevrolet TrailBlazer
PCM will then ground the control circuit of the starter relay, closing the switch supplying voltage to the starter solenoid. On some vehicles the starter will continue to crank the engine with the key
Question about Chevrolet TrailBlazer
...only. There is voltage and ground for the instrument cluster. The vehicle speed sensor sends a signal to pcm concerning speed then the pcm sends signal to instrument cluster for
...PCM. It can be caused by a voltage drop in the FTP sensor circuit caused by wire corrosion or a bad/corroded connector, etc. It can be caused by a short to ground in the CPV control circuit, causing ...
...is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds ...
On the 2004 Trailblazer (25000 mi) all guages suddenly inoperative! POSSIBLE CAUSE GROUND WIRE PROBLEMS.IPC FUSE OR IGNITION FUSE BLOWED OR FAULTY PCM OR FAULTY INSTRUMENT PANEL CLUSTER.
...PCM... Those are the computers that control engine management. There are also fuses for the coil packs and fuel injectors. I would suggest trying to retrieve codes, this would really help at least ...
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