2003 Ford F150 DLC No Communication

2003 Ford F150

Ford F150 On the 2003 Ford F150, if you plug your code reader or scan-tool into the Diagnostic Connector and the scan-tool or reader will not turn on or read any p-codes, the Diagnostic Connector is on the same circuit as the Cigar Lighter. This is fuse number “F2.3” in the fuse box located under the driver’s side dash. If the fuse blows after replacement, then the problem will be in the Cigar Lighter receptacle. Remove the lighter assembly and make sure there are no broken or damaged wires. If the…

Read More

2000 Chevy K1500 DLC No Communication

2000 Chevy K1500

Chevy K1500 On the 2000 Chevy K1500, when there is “No Communication” between the DLC and the scan-tool, check fuse #47 labeled as “CIGAR” in the fuse box to see if it’s blown. This fuse also protects the Cigar lighter, and more times than not, this is the root of the problem. Remove the cigar lighter receptical and unplug it. Install a new fuse. If it blows again, there is a wiring problem in the Data Link Connector. If the fuse does not blow, inspect the wiring harness to the cigar…

Read More