*No Response From HVAC (A/C Heater Control): Notes

Fig 1: No Response From HVAC (A/C Heater Control)- Wiring Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

For a complete wiring diagram Refer to SYSTEM WIRING DIAGRAMS .

Possible Causes 

(F504) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN OR SHORTED

(Z24) GROUND CIRCUIT OPEN

(D55) AND (D54) CAN B BUS CIRCUITS OPEN

A/C HEATER CONTROL