Need wiring diagram for taillights on 2000 chevy venture van
I bought new circuit board for the two side taillights and new pigtail wiring harness to plug in to it. Problem is the wires on the pigtail are all grey, and the wires from the van are color coded. I need to know what colored wire to put to each of the six wires on the pigtail harness. Any help would be greatly appreciated. Thank you and god bless.
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Its on the side of the block firewall side ... REMOVAL Numbers in text in parenthesis correspond to numbered components in image. Disconnect the wiring harness (1) from the Crankshaft Position (CKP) sensor pigtail. Securely attach a scrap piece of wire about 36 inches long to the CKP sensor pigtail. Later, this piece will be used as a pull wire to guide the new sensor pigtail back through the same routing. Raise and support the vehicle. Remove the oil filter and capture any lost engine oil in a container. Loosen the oil cooler lines at the engine block. Back out the fittings far enough in order to gain sufficient clearance for the sensor pigtail connector to pass between the oil cooler lines and the side of the engine block. Remove the fastening bolt for the CKP sensor (1). Remove the CKP sensor and the O-ring seal from the engine block. Remove the CKP sensor pigtail. Observe the routing of the pigtail. Gently pull the CKP sensor pigtail down through the routing path and out. Guide the pigtail connector along the top of the oil cooler lines around to the side of the engine block. Pass the connector between the lines and the block at the point of the widest gap. Stop when the pull wire is exposed at both ends of the routing path. Disconnect the sensor from the pull wire. INSTALLATION Securely attach the CKP sensor pigtail to the lower end of the pull wire. Pass the pigtail connector between the oil cooler lines and the engine block. Using the pull wire as a guide, pull the sensor pigtail along the top of the oil cooler lines and around to the rear of the engine. Use the pull wire to pull the pigtail into position. Disconnect the pull wire from the sensor pigtail. Connect the sensor pigtail to the harness connector. Thoroughly clean the mating surfaces of the CKP sensor and the engine block. Install the CKP sensor with a new O-ring seal into the engine block. Install the fastening bolt (1) for the CKP sensor. Check the harness for proper routing. Make sure that the wiring cannot come in contact with the exhaust manifold. Tighten the oil cooler lines at the engine block. Install the oil filter. Lower the vehicle. Recheck the engine oil level.
Go to you're local dealer and purchase the circular tail lights with pigtails ,remove you're old squared taillights ,make sure you number you're pigtails on both tail light wire harnesses so you won't loose track of what wire goes with which wire. Use a wire cutter to splice the 2001 pigtails individually ,do the same for the 2005 tail light . Using connectors,place the wires together ,according to the matching numbers on the wires you have placed. Crimp the commectors and wrap with electrical tape,insert the light back in place and you have 2005 tail light upgrade.
Make sure when you purchase the bulbs you ask for 2005 taillight bulbs.
You can buy replacement taillight bulbs with wiring pigtail wiring hanging out of the side of the bulb. You'd use them to replace your existing taillight bulbs and connect your trailer harness to the pigtail wires. You may need to drill through the taillight housing to get the harness wiring in to the bulbs - if you have to do that, seal it back up around the wiring with RTV silicone.
That's a lot easier than tracking down each wire, probing it to find out what it does, and splicing into it with pinch splices (which aren't very reliable), then periodically replacing the pinch splices that've gone bad and made your trailer lights fail. You can make a pretty good splice to the pigtailed taillight bulbs, and it's really easy to tell what each pigtail does - brake/turn or park light.
An alternator can run on two wires, the thick wire is the supply to charge the battery, direct to positive, via fuse box or starter supply. The thin wire possibly blue on Fords, is the energiser wire from the dash charge light, without this connected the alternator will not charge. If on the new pigtail two wires are thick (30amp) you can ignore one, some vehicles double up on the charge supply wire.
taillight circuit board most likly corroded. remove t light undue two screws that hold board to light. unplug wiring harness . pull bulbs out and inspect sockets,, sometimes you can solder a small wire to rejoin the corroded area . but aftermarket boards are available for about 30 bucks...auto wreckers can also sell used lights n boards
You don't need the OEM part, Go to ebay and find one, or any parts store. I bought one for my truck, worked great. It has all the little electronic gizmos on it you need to blink with. Snaps right in the sockets, and no wire cutting. Check it out.
sounds like you still have a wire harness problem for the oil pressure sending unit. if you spliced a new pigtail to the wire harness you may still have a bad connection or there is still a damaged wire farther up in the harness.