MODELS: 2006-2008 MAZDA6 vehicles (not Mazdaspeed 6)
Customers may state they are experiencing one of the following issues:
- Engine crank/no start
- Air conditioning inoperative
- Rear defroster inoperative
- Improper ambient temperature
These issues may be caused by a faulty C-04 connector (Figure 1). Disconnect the C-04 connector and inspect the terminals and wires for damage. Repair any loose or damaged terminals as needed. The applicable pins (Figure 2) are as follows:
- Engine crank/no start – W/G or G/R wires (Fuel Pump Relay)
- Air conditioning inoperative – GY/B wire (A/C Pressure Switch)
- Rear defroster inoperative – V/R wire (Rear Window Defroster Relay to Center Panel)
- Improper ambient temperature display – Y/G wire (Airflow Mode Actuator to Ambient Temperature Sensor).
