TROUBLE DIAGNOSES — Symptom Chart (Cont'd) — Electrical Components Inspection
HA-59spec tableUnverifiedHeader column-spans interpreted as: Push control unit groups REC/VENT/B-L/FOOT/F-D/DEF switches; Compressor groups Magnet clutch + Thermal protector. Row order matches HA-58 (8 of 9 symptoms — Noise row absent on this page).
Symptom Chart (Cont'd)
Electrical Components Inspection
Symptom Chart (Cont'd) — Electrical Components Inspection matrix
A/C does not blow cold air.
Blower motor (HA-83)○
Resistor (HA-83)○
A/C switch (HA-84)○
REC switch (Push control unit)
VENT switch (Push control unit)
B/L switch (Push control unit)
FOOT switch (Push control unit)
F/D switch (Push control unit)
DEF switch (Push control unit)
Fan switch (HA-83)○
Mode door motor
Intake door motor
A/C relay (HA-85)○
Thermo control amp. (HA-85)○
Dual-pressure switch (HA-84)○
Compressor — Magnet clutch (Compressor)
Thermal protector (HA-84)○
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)
Knob illumination
Harness○
Blower motor does not rotate.
Blower motor (HA-83)○
Resistor (HA-83)○
A/C switch (HA-84)
REC switch (Push control unit)
VENT switch (Push control unit)
B/L switch (Push control unit)
FOOT switch (Push control unit)
F/D switch (Push control unit)
DEF switch (Push control unit)
Fan switch (HA-83)○
Mode door motor
Intake door motor
A/C relay (HA-85)
Thermo control amp. (HA-85)
Dual-pressure switch (HA-84)
Compressor — Magnet clutch (Compressor)
Thermal protector (HA-84)
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)
Knob illumination
Harness○
Air outlet does not change.
Blower motor (HA-83)
Resistor (HA-83)
A/C switch (HA-84)
REC switch (Push control unit)
VENT switch (Push control unit)○
B/L switch (Push control unit)○
FOOT switch (Push control unit)○
F/D switch (Push control unit)○
DEF switch (Push control unit)○
Fan switch (HA-83)○
Mode door motor
Intake door motor
A/C relay (HA-85)
Thermo control amp. (HA-85)
Dual-pressure switch (HA-84)
Compressor — Magnet clutch (Compressor)
Thermal protector (HA-84)
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)
Knob illumination
Harness○
Intake door does not change.
Blower motor (HA-83)
Resistor (HA-83)
A/C switch (HA-84)○
REC switch (Push control unit)
VENT switch (Push control unit)
B/L switch (Push control unit)
FOOT switch (Push control unit)
F/D switch (Push control unit)
DEF switch (Push control unit)
Fan switch (HA-83)
Mode door motor○
Intake door motor
A/C relay (HA-85)
Thermo control amp. (HA-85)
Dual-pressure switch (HA-84)
Compressor — Magnet clutch (Compressor)
Thermal protector (HA-84)
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)
Knob illumination
Harness○
Intake door is not set at "FRESH" in DEF or F/D mode. (L.H.D. model only)
Blower motor (HA-83)
Resistor (HA-83)
A/C switch (HA-84)
REC switch (Push control unit)○
VENT switch (Push control unit)
B/L switch (Push control unit)
FOOT switch (Push control unit)
F/D switch (Push control unit)
DEF switch (Push control unit)
Fan switch (HA-83)
Mode door motor○
Intake door motor
A/C relay (HA-85)
Thermo control amp. (HA-85)
Dual-pressure switch (HA-84)
Compressor — Magnet clutch (Compressor)
Thermal protector (HA-84)
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)
Knob illumination
Harness○
Magnet clutch does not operate with A/C switch and fan switch are ON.
Blower motor (HA-83)
Resistor (HA-83)○
A/C switch (HA-84)
REC switch (Push control unit)
VENT switch (Push control unit)
B/L switch (Push control unit)
FOOT switch (Push control unit)
F/D switch (Push control unit)
DEF switch (Push control unit)
Fan switch (HA-83)○
Mode door motor
Intake door motor
A/C relay (HA-85)○
Thermo control amp. (HA-85)○
Dual-pressure switch (HA-84)○
Compressor — Magnet clutch (Compressor)○
Thermal protector (HA-84)○
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)
Knob illumination
Harness○
Magnet clutch does not operate in DEF mode. (L.H.D. model only)
Blower motor (HA-83)
Resistor (HA-83)
A/C switch (HA-84)
REC switch (Push control unit)
VENT switch (Push control unit)
B/L switch (Push control unit)
FOOT switch (Push control unit)
F/D switch (Push control unit)○
DEF switch (Push control unit)○
Fan switch (HA-83)
Mode door motor
Intake door motor
A/C relay (HA-85)○
Thermo control amp. (HA-85)○
Dual-pressure switch (HA-84)○
Compressor — Magnet clutch (Compressor)○
Thermal protector (HA-84)○
E.C.C.S. control unit (Refer to EF & EC section)○
Illumination system (Refer to EL section)
Knob illumination
Harness○
Illumination or indicators of push control unit do not come on.
Blower motor (HA-83)
Resistor (HA-83)○
A/C switch (HA-84)○
REC switch (Push control unit)○
VENT switch (Push control unit)○
B/L switch (Push control unit)○
FOOT switch (Push control unit)○
F/D switch (Push control unit)○
DEF switch (Push control unit)○
Fan switch (HA-83)○
Mode door motor
Intake door motor
A/C relay (HA-85)
Thermo control amp. (HA-85)
Dual-pressure switch (HA-84)
Compressor — Magnet clutch (Compressor)○
Thermal protector (HA-84)
E.C.C.S. control unit (Refer to EF & EC section)
Illumination system (Refer to EL section)○
Knob illumination○
Harness○
NOTE
Continuation of the HA-58 Symptom Chart. "○" = inspect this electrical component as part of the diagnosis (refer to the page in the column header — most route to Electrical Components Inspection HA-83 to HA-85, with E.C.C.S. control unit in EF & EC section and Illumination system in EL section). The "Noise" symptom row from HA-58 has no entries here and is therefore omitted.
See also
HA-83TROUBLE DIAGNOSES — Electrical Components Inspection — Fan switch / Blower motor / Blower resistorHA-84TROUBLE DIAGNOSES — Electrical Components Inspection (Cont'd) — A/C switch / Dual-pressure switch / Thermal protectorHA-85TROUBLE DIAGNOSES — Electrical Components Inspection (Cont'd) — Thermo control amp / A/C relay / ThermoswitchEF & ECENGINE FUEL & EMISSION CONTROL SYSTEMEL