MTC System

CAUTION: Do not exchange A/C - Heater Controls from vehicle to vehicle. Software versions differ between models and model years. Installing an A/C - Heater Control with software that is incompatible for a given vehicle can result in either improper or failed HVAC system operation.

Use the A/C - heater control to display DTCs stored in the A/C - heater control of the MTC system. Refer to Entering Display DTC Mode - MTC System; Display Sequencing - MTC System; Reading Diagnostic Trouble Codes - MTC System; Active DTCs - ATC and MTC Systems; Stored DTCs - ATC and MTC Systems; and Clearing Faults - MTC System.