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

Fig 1: A/C Heater Control Circuit Diagram

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

NOTE: For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article.

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