The pcm reads the speed of the. Gm transmissions generate 17 pulses per shaft revolution.
Need Ecm Pinouts Third Generation F Body Message Boards
Gm vss wiring diagram. All the wires at the connectors have alphanumeric addresses showing where the other end of the wire is located ac cording to the grid. Testing either a 2 or 3 wire hall effect speed sensor is a relatively easy task and one that can save you quite a bit of money in the long run. Volkswagen jetta golf and cars 2000 05 main wiring diagram cabrio 1999 repair guide. Follow your speedometer manufacturers recommendation for wiring. Autozones repair guides tell you what you need to know to do the job right. Using a digital volt ohmmeter dvom measure the resistance ohmmeter function between the sensor terminals.
Your source for chevrolet wire information wiring information technical help for your new or used vehicle chevrolet technical wiring diagrams wire information wirediagram. Gm ls engine swap wiring you can do at home. The connectors are shown with end on views with. Your vehicle could start to act like it has a bad coil pack or throttle position sensor and after testing those you may still come up empty handed. Of particular interest to those doing a harness swap for a 4wd rig is dealing with the vehicle speed sensor vss. Learn how to access vehicle repair guides and diagrams through autozone rewards.
You should be able to find the same wire at the ecm from a diagram or the harness builder. Wiring diagrams description these diagrams use a new format. We are the leading source of professional diagnostic and repair information used by over 75000 repair professionals. Vehicle speed sensor testing. The pinwire on the left toward front of car is the reference terminal blue wire on most wiring diagrams and the one on the right toward the rear of car is the signal terminal yellow on most wiring diagrams. A small gauge wire is ok almost no current on it.
Turn the ignition switch to the off position. It may not be necessary but if you tie into the plug at the transmission i would use either a shielded wire or a twisted pair with one grounded. Alldata gives you all available wiring diagram schematics updated four times a year to meet changing factory service and repair information. If the resistance is 190250 ohms the sensor is okay. Disengage the wiring harness connector from the vss. We offer both one year and five year subscriptions for our gmc truck manual.
The diagram is surrounded by a alphanumeric loaction grid. The yellow is vss high according to the camero diagram. Vehicle speed sensor replacement. Sign up today to access the guides. Find out how to access autozones vehicle speed sensor vss repair guide for silverado 2008. Find out how to access autozones main wiring diagram equivalent to standard.
Gallery of Gm Vss Wiring Diagram
