Heavy Duty Diagnostics

We've provided many heavy-duty diagnostic codes for our customers' convenience.

Feel free to contact us with your questions or to book your next appointment to troubleshoot any issues you might be experiencing.

CAT ENGINE

To Retrieve Blink Codes

Turn cruise control switch to OFF
Hold up on the SET/RESUME switch until the yellow check engine light begins to flash.
Count flashes, short pause between first count and second
- ie. 5 flashes, short pause, 5 flashes = 55 Refer to List, 55 = No Diagnostic Codes Detected
To Take a Snapshot ie. When a problem is happening
Turn cruise control switch to OFF
Quickly toggle the SET/RESUME switch up and down once