System Diagnostics (ATC & MTC)

Fault detection is through stored Diagnostic Trouble Codes (DTCs)

• DTCs are displayed by the DRBIII®.
• All ATC and MTC DTCs are stored in the BCM. Diagnostics for these DTCs can be found in HEATING & A/C .
• DTCs pertaining to A/C compressor control circuits and the radiator fan control circuits are stored in the PCM. Diagnostics for these DTCs can be found in POWERTRAIN DIAGNOSTIC PROCEDURES - EXCEPT COUPE . Diagnostics for symptoms pertaining to A/C compressor operation can also be found in POWERTRAIN DIAGNOSTIC PROCEDURES - EXCEPT COUPE .