Diagnostics for A/C System Malfunction
DIAGNOSTICS FOR A/C SYSTEM MALFUNCTIONA/C OR SELF-DIAGNOSIS SYSTEMS DO NOT OPERATE
TROUBLE SYMPTOM:
- Set temperature is not indicated on the display, switch LEDs are faulty and switches do not operate.
- Self-diagnosis system does not operate.
WIRING DIAGRAM:
BLOWER MOTOR DOES NOT ROTATE
TROUBLE SYMPTOM:
- Blower motor does not rotate.
- Blower motor does not change speeds.
WIRING DIAGRAM:
BLOWER MOTOR TURNS AROUND EARLY
TROUBLE SYMPTOM:
- The blower rotates even though the blower switch is not turned on.
- The blower motor continues to rotate at high speed. (Not adjustable.)
WIRING DIAGRAM:
COMPARTMENT TEMPERATURE DOES NOT CHANGE, OR A/C SYSTEM DOES NOT RESPOND PROMPTLY
TROUBLE SYMPTOM:
- Compartment temperature does not change. (Cold air does not come out.)
- A/C system does not respond. (Response is extremely slow)
WIRING DIAGRAM:
DEFROSTER SWITCH LIGHT IS BLINKING
TROUBLE SYMPTOM:
Defroster switch (with left/right independent air conditioning function) or FRESH/RECIRC switch (without left/ right independent air conditioning function) indicator blinks when the ignition switch is turned from OFF to ON.
NOTE: When the ignition switch is turned from OFF to ON immediately after the reconnection of the battery or when the battery power supply voltage is low (battery voltage: 9 V or less), the indicator may blink. Throughout this blinking period, the system recognizes the specified position of the air mix door actuator and mode door actuator. So, this is not a malfunction. (Number of blinking: 12 at 0.5 second intervals)
WIRING DIAGRAM:
FRESH/RECIRC SWITCH LIGHT IS BLINKING
Refer to the "Defroster switch indicator blinks" for diagnostic procedure.