Recent content by jrbaldwin

The Trailblazer has been driving good and has not thrown any new codes. Looks like repairing the PCM wiring harness solved the issues. Thanks for all the assistance and wiring diagrams. Would not have know how and where to start trouble shooting the Class 2 network without the assistance.

Was checking the PCM connections and wiring and while pulling on the PCM wiring harness lost the entire Class 2 network and blew the fuse 10. Pulled splice packs and retested entire network and everything good except no PCM. Found several PCM wires with damaged insulation which I repaired then...

Just notice that PCM C1 Pin 22, PPL Wire, Circuit 1589 is Fuel Level Sensor Siganl - Primary and Pin 61, Dk Grn wire, Circuit 890 is the Fuel Tank Pressure Sensor Signal. So probably part of the PCM issue.

Finely getting back to the Blazer after a lot of other projects including rebuilding the front end of my tractor. Yesterday evening checked battery and tested good with 90% charge after sitting a month. Battery connections, power connections to both fuse boxes good with 12 volts. Cleaned spare...

Never use the CD player, but will check. No kids to stick thing where they don't go. Only driver of the blazer. Only recent things I have done except having the dealer reprogram and installing the spare BCM last month to correct various random issues with the passlock system. Car would not...

Yes some of the transmission controls wires are in the PCM

Thanks will pick up a couple of cans. Here is what i could find for the splice packs on a Trail Blazer. Comes from a 2004 Trail Blazer wiring diagram. Doe it look correct for a 2005? Splice Pack SP205 Behind Left Side of Dash Near Headlamp Switch Connector A. Purple (PPL) W/O Immobilizer to...

Read everything on No Crank, Like Attempting To Start In Drive and will clean & check the fuse box after checking the fuses and voltages. Have a spare engine fuse box. But leaning towards something on the network going bad corrupting the network signal or network wiring issue. I have 4 modules...

Thanks for all the information GM Class 2 Network and the PCM connections. Looks like after checking at all the fuses and voltages at the fuses & changing the ignition switch I will start with the splice packs and take everything off the network except the BCM and PCM eliminating everything...

Thanks. Thought the BCM set the Check Engine Light. So makes sense to start with the PCM as it is one of the 4 modules the scanner can not communicate with. Will start checking the power / grounds and also clean all the PCM plug pins to insure good contacts. A couple of months ago found a...

Yes all instrument cluster warning lights on during "all lights test" at the start of "key on" sequence.

Sorry out getting lag bolts to secure the wifes new green house. Yes no "check engine light" with the key turned on but comes on during the "all lights test" at the start of "key on" sequence. But will check again to confirm all lights test.

Currently have LED indicating fuses installed so small LED lights when fuse bad. Also pulled and looked at fuse elements which looked good. Going to check each fuse with multi-meter. Can check voltages with fuses in place as have small test pads on top. Can check both sides on the fuses for...

Yes changed about 6-8 months ago. Carry a spare so will change to eliminate as a possible issue.

2005 Chevy Trailblazer LT, 2-Door, 4WD, I6 4.2L engine Won't start or turn over. No starter signal at starter relay but when jump relay will turn over but not start. No check engine light. All instrument light on when first to key on the go out except battery & gauge warning light stay on...