1998 ACURA INTEGRA Service Repair Manual

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20-171

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Heater
fffustrated Index ............. ......'..21-2
Heater Door Positions '....'........ 21-3
Circuit Diagram ....................... 21-6
Troubleshooting
Symptom Chart ............. '.....21-8
Flowcharts
Blower Motor Speed ...............'......'........ 21 -9
Blower Motor ............'......21-11
Mode Controf Motor ............ ............'... "' 21 -14
Recirculation Control Motor ......'...... "'.,.,. 21 -1 7
Heater Control Panel Input/
Output Signals ...'.......... 21-19
Blower Unit
Replacement ........ '....... ',..,.. 21-2O
Overhaul ",',..21-21
*Heater Unit
Repf acement .....'.....'........'.. 21'22
Overhaul .......21-24
Heater Control Panel
Repfacement ....... '..... '......... 21-25
Overhaul .......21-26
Heater Valve Cable
Adjustment '.. 21'27
Air Mix Control Cable
Adiustment ... 21-27
Mode Control Motor
Test .............. ..................... 21'24
Repfacement ....................... 21-24
Recirculation Control Motor
Test .............. ..................... 21-29
Repf acement .........'........ " ". 21-29
Relay
Test .............. ..................... 21-3O
Heater Fan Switch
Test .............. ....................' 21-30
Mode Control Switch
Test .............' "'..............'... 21-31
Recirculation Control Switch
Test .............. ..................... 21-31
*: Read SRS precautions before working in this area.

lllustrated Index
SRS components are located in this area. Review the SRS component locations. precautions, and procedures in the SRSsection (23) before performing repairs or service.
BLOWER UNITReplacement, page 21-2OOverhaul, page 21.21
HEATER VALVE CABLEAdiustment, page 21-27
HEATER UNITReplacement, page 21-22Overhaul, page 21-24RECIRCULATION CONTROL MOTORIest, page 21,29Seplacement, page 21-29
BLOWER RESISTORTest, page 21-9
AIR MIX CONTROLCABLEAdjustment, page 21-27Replacement, page 21-26
A/C SWTTCH{with A/clTest, page 22-20
RECIRCULATIONCONTROL SWITCHTest, page 21,31
HEATER FANswrTcHTest, page 21-30
MODE CONTROL MOTORTest, page 21-28Replacement, page 2 l -28CONTROL SWITCHTest, page 21-3'l
HEATER CONTROL PANELReplacement, page 21,25Overhaul, page 21-26
TEMPERATURE CONTROLLEVERlAdjustment: Soe AIR MIXCONTROL CABLEI
21-2

Heater Door Positions
II Horfr coor
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IHEAT/VENTI
(cont'd)
VENT DOOR
21-3

Heater Door Positions
(cont'd)
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21-4

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{DEFI
21-5

Circuit Diagram
R€CIRCULATIONcoNTROt MOTOR
UNDER HOOD FUSE/RELAY BOX
N0.41 (1004) N0.42 (40A)
,,\J.orr --'-- l,--
BtK
21-6