K 2500 Yukon 4WD V8-6.0L VIN U (2000)
Cellular Phone: Description and Operation
Cellular Communication - Circuit Description
CKT 2240 (ORN) receives voltage at all times from the SEO1 fuse. CKT 243 (YEL) receives voltage with the ignition switch in the run and accessory
position from the SEO ACCY fuse. Ground is supplied through CKT 1850 (BLK) from splice pack 203 and G203.
1. The cellular phone hookup circuits are located between the driver and passenger front seats extending from a cutout in the carpeting. On a center
console equipped vehicle the circuits are located underneath the removable cupholder. An electrical passthrough knockout has been provided on
the front wall of the center console storage bin to route the circuits into the bin.
2. The microphone leads are located at the inboard corner of the drivers visor underneath the headliner. Pull down the hanked branch, it should be
approximately 8-10 inches long, and attach the microphone.
3. The circuits are marked and identified as follows:
Cellular Telephone Circuit Description
For a description of the RPO Code(s) shown in this article refer to the RPO Code List found at Vehicle/Application ID See: Application and ID/RPO
Codes