Many users have installed the Range V8 in Camaros and 2014/15 Silverado/Sierra/Yukon/Tahoe. The new vehicles have electronic power steering that sends a lot of messages on the CAN Bus (the communication system of the vehicle). As such, the engineers at Range have had to work around these messages.
Infrequently, our device will interrupt these communications and temporary check engine lights will appear on the dash. Our latest firmware version solves this almost completely, but there is still a small chance of it happening. If this problem manifests in your vehicle - turn the key completely off and remove it from the ignition. Remove the Range device and wait for 3-4 minutes. You can then restart the vehicle and all the codes will be cleared.
If you have one of our latest modules (Version 5 released in the last week of April or Version 6 released in late May or Version 7 released in Mid August 2014 ... you can do the following to clear the CURRENT DTCs that may be causing a SES/CEL:
- Unplug the module for 3-4 minutes with the key OFF
- Start the vehicle and be sure it's at a steady idle
- After 10-15 seconds, plug the module into the OBD2 port
- This will send a DTC ALL CLEAR to all modules on the bus when it's plugged in "hot" like this
Since the "Historical" code is stored (even if you unplug the battery cables) for a number of drive cycles, you need to complete 6-8 drive cycles without the code reoccurring to have the messages regarding the ABS or PowerSteering system clear. It's a requirement by the govt. to NOT be able to clear the historical so that a technician can diagnose it if it was a communications error (which is what is stored ... a U1xxx - communications lost DTC)
VERSION 7 HAS BEEN RELEASED! This solves the CHECK ENGINE LIGHTS problem ... if you have a module that was released before mid August 2014, then send in your module for a FREE update to the latest firmware!
Please go HERE for instructions on how to get the upgrade!