Heater / Air Conditioner System Diagram
16-NC-4wiring diagramHeater and A/C circuit. LHD/RHD ground differences noted (G201/G301). DASHLIGHT BRIGHTNESS CONTROLLER present on KQ model only.
Wiring Schematic
Components (33)
No. 31 (60A) fuseIG2-BNo. 18 (10A) fuseNo. 19 (30A) fuseNo. 38 (15A) fuseHEATER BLOWER MOTORRESISTORFAN SWITCHRECIRCULATION CONTROL MOTORLIGHTING SWITCH (3-C)(4-C)(5-C)MODE CONTROL MOTORHEATER CONTROL SWITCHA/C SWITCHINDICATORTHERMOSTATDASHLIGHT BRIGHTNESS CONTROLLER (KQ model only) (3-C)PGM-FI ECU (10-A) pin 23RADIATOR FAN RELAY (2-A) pin 10CONDENSOR FAN RELAYA/C DIODEPRESSURE SWITCHCONDENSOR FAN MOTORNOISE FILTERCOMPRESSOR CLUTCH RELAYA/C COMPRESSORTHERMAL PROTECTORCOMPRESSOR CLUTCHPGM-FI ECU (10-D) pin 26G201 (ground, LHD)G301 (ground, RHD)G401 (ground)G281 (ground)??
Connections (41)
No. 31 (60A) fuse
No. 31 (60A) fuseCONDENSOR FAN RELAYWHT/RED
IG2-B
IG2-BHEATER BLOWER MOTORBLU/WHT
No. 18 (10A) fuse
No. 18 (10A) fuseNo. 19 (30A) fuseYEL/BLK
No. 19 (30A) fuse
No. 19 (30A) fuseHEATER BLOWER MOTORBLU/WHT
HEATER BLOWER MOTOR
HEATER BLOWER MOTORRESISTORBLU/BLK
RESISTOR
RESISTORFAN SWITCHBLU/WHT
RESISTORFAN SWITCHBLU/BLK
RESISTORFAN SWITCHBLU
RESISTORFAN SWITCHBLU/YEL
FAN SWITCH
FAN SWITCHG201 (ground, LHD)BLK
FAN SWITCHHEATER CONTROL SWITCHGRN
RECIRCULATION CONTROL MOTOR
RECIRCULATION CONTROL MOTORHEATER CONTROL SWITCHBLU/ORN
RECIRCULATION CONTROL MOTORHEATER CONTROL SWITCHBLU/GRN
RECIRCULATION CONTROL MOTORHEATER CONTROL SWITCHBLK/YEL
RECIRCULATION CONTROL MOTORHEATER CONTROL SWITCHBLK
MODE CONTROL MOTOR
MODE CONTROL MOTORHEATER CONTROL SWITCHRED/BLK
MODE CONTROL MOTORHEATER CONTROL SWITCHBLK/YEL
MODE CONTROL MOTORHEATER CONTROL SWITCHYEL/RED
MODE CONTROL MOTORHEATER CONTROL SWITCHGRN/WHT
MODE CONTROL MOTORHEATER CONTROL SWITCHBLU/WHT
MODE CONTROL MOTORHEATER CONTROL SWITCHBLU
MODE CONTROL MOTORHEATER CONTROL SWITCHYEL/BLK
LIGHTING SWITCH (3-C)(4-C)(5-C)
LIGHTING SWITCH (3-C)(4-C)(5-C)MODE CONTROL MOTORBLK/YEL
HEATER CONTROL SWITCH
HEATER CONTROL SWITCHA/C SWITCHBLK/YEL
HEATER CONTROL SWITCHDASHLIGHT BRIGHTNESS CONTROLLER (KQ model only) (3-C)RED
HEATER CONTROL SWITCHG301 (ground, RHD)BLK
A/C SWITCH
A/C SWITCHTHERMOSTATBLU/RED
A/C SWITCHHEATER CONTROL SWITCHGRN
THERMOSTAT
THERMOSTATPRESSURE SWITCHBLU/RED
PGM-FI ECU (10-A) pin 23
PGM-FI ECU (10-A) pin 23:23A/C DIODEBLU/RED
RADIATOR FAN RELAY (2-A) pin 10
RADIATOR FAN RELAY (2-A) pin 10:10A/C DIODEYEL/GRN
CONDENSOR FAN RELAY
CONDENSOR FAN RELAYNo. 38 (15A) fuseWHT
CONDENSOR FAN RELAYCONDENSOR FAN MOTORBLU/BLK
CONDENSOR FAN RELAY??BLK/YEL
PRESSURE SWITCH
PRESSURE SWITCHCONDENSOR FAN MOTORBLU/RED
CONDENSOR FAN MOTOR
CONDENSOR FAN MOTORNOISE FILTERBLK
CONDENSOR FAN MOTORG281 (ground)BLK
NOISE FILTER
NOISE FILTERCOMPRESSOR CLUTCH RELAYBLU/BLK
COMPRESSOR CLUTCH RELAY
COMPRESSOR CLUTCH RELAY??BLK/YEL
COMPRESSOR CLUTCH RELAYA/C COMPRESSORRED
A/C COMPRESSOR
A/C COMPRESSORPGM-FI ECU (10-D) pin 26:26YEL
NOTE
Ground assignments: HEATER BLOWER MOTOR / FAN SWITCH ground is G201 (LHD) or G301 (RHD); HEATER CONTROL SWITCH grounds are G301, G401 (LHD) or G201, G401 (RHD); CONDENSOR FAN MOTOR / compressor side ground is G281.