1998 HONDA CR-V open hood

Both heater and A/C do not work.
Check the No. 17 (7.5 A)fuse in theunder-dash fuse/relay box, and theNo. 47 (7.5 A) fuse in the under-hood luse/relay box.
nophcc ih. fur.l.l, .nd r.check.
Check tor rn open in the wiro:1. Remove the heater controlpanellsee page 22 46).2. Turn the ignition switch ON (ll).3. Measure the voltage betweenthe No. 1 terminal of theheater control panel 8P con-nector and body ground.
R.pair opan in lha wlra batw.cnthe No. 1? fuaa and tha h.ltcrcontrol panal.ls thero battery voltage?
Chgck for an opan in th€ wirg:1. Turn the ignition switch OFF.2. Measure the voltage betweenthe No. l l terminal of thoheater control panel 20P con-noctor and body ground.
Repsil opon in tha wi.a batwcanth. No. 47 tur. and tho hoitorcontlol panol.
ls there battery voltags?
Check for an opon in the wire:Ch6ck lor continuity betwoen theNo. 7 terminal of the heater con-trol panel 8P connector and bodyground.
Check for an opon in tho wirab6{woon tho hoatar control p.noland body ground. It the wir. i3OK, chsck for poor ground rtGlOl lnd Glo2.
Check for loose wire3 or oooaconnection3 at the haater controlprnol 8P and 20P connoctors. Itthc conncction3 are good, substi-tuta a known-good h€ater con-trol prnol, and rechecft. lf thesymptom/indic.lion go.3 ewry,repl.cg the original ha.ter con-tlol oancl.
HEATER CONTROL PANEL 8P CONNECTOR
Wire side ot female terminals
HEATER CONTROL PANEL 2OP CONNECTOR
I2A,/1,/58910
1t12131a151517181920
WHT/BLU
Wire side of female terminals
23
{578
BLK
0
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A/C FilterHeater Unit
Replacement
1.Remove the glove box (see section 20).
Remove the glove box frame {see page 22-4A).
Release the wire harness from the clamps on the
evaporator. Remove the filter lid, then pull out the
,VC filter assembly from the evaporator housing.
A/C FILTER ASSEMELY
Remove the A/C filter from the filter housing.
Replace the Ay'C filter according to the maintenance
schedule in the owner's manual.
Install in the reverse order of removal. Make sure
that there is no air leakage.
22-50
Replacement
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section {24) before performing repairs or ser-
1. Disconnect the negative cable from the battery.
2. From under the hood, open the cable clamp, then dis-
connect the heater valve cable from the heater valve
arm. Turn the heater valve arm to the fullv ooened
oosition as shown.
When the engine is cool, drain the engine coolant
from the radiator (see section 10).
@ Do not remove the rldiator cap when
the engine is hot; the engine coolant is under pres-
sure and could sevo.ely scald you.
HEATER VALVE ARM
HEATER VALVE CABLE
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Temperature Control
Adjustment
l. From under the hood, open the cable clamp, then
disconnect the heater valve cable from the heater
vatve arm.
From under the dash, disconnect the heater valve
cable housing from the cable clamp. and disconnect
the heater valve cable from the air mix contlol arm
Set the temperature control dial on MAX COOL with
the ignition switch ON (ll).
Attach the heater valve cable to the air mix control
arm as shown above. Hold the end of the heater
valve cable housing against the stop, then snap the
heater valve cable housing into the cable clamp.
HEATER VALVE ARM
HEATER VALVE CABLE
5. From under the hood. turn the heater valve arm to
the fullv closed position as shown, and hold it.
Attach the heater valve cable to the heater valve
arm, and gently pull on the heater valve cable hous-
ing to take up any slack, then install the heate. valve
cable housing into the cable clamp.
HEATER VALVE ARM
HEATER VALVE CABLE
22-53
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A/G System Service
Performance Test
The performance test will helD determine if the air con-
ditioner system is operating within specifications.
Use only service equipment that is U.L.-listed and is cer-
tified to meet the requirements of SAE J2210 to remove
HFC-134a (R-134a) from the air conditioner svstem.
CAUTION: Exposure to air condiiioner r€trigerant and
lubricant vapor or mist can irritate €yes, nose and
throat. Avoid bre8thing the air conditioner retrige.ant
and lubricant vapor or mist,
lf accidental system discharge occurs. ventilate work
area before resuming service.
R-134a service equipment o. vehicle air conditioner sys-
tems should not be pressure tested or leak tested with
comDressed air.
@ some mixtur€s ol air and R-134a have becn
shown to be combuslible at olsvated pressures and can
result in lire or explosion causing iniury or property
damage. Never use compressed air to prgssure test R-
13i[a service equipment or vehicle air conditioner sys.
tems.
Additional health and safety information may be obtained
from the refrigerant and lubricant manufacturers.
Recovory/Recycling/charging station
LOW.PRESSURESIDE
1.Connect a R-134a refrigerant recover/recycling/
charging station to the vehicle, as shown. following
the equipment manufacturer's instructions,
Insen a thermometer in the center air vent. Determine
the relative humidity and air temperature.
Test conditions:
. Avoid direct sunlight.
o Open hood.
. open front doors.
. Set the temperature control dial on MAX COOL,
the mode control dial on VENT and the reci.cula-
tion control switch on RECIRCULATE.
. Turn the A,/C switch on and the fan switch on
MAX.
. Run the engine at 1,500 rpm.
. No driver or passengers in vehicle
After running the air conditioning for 10 minutes
under the above test conditions, read the deliverv
temperature from the thermometer in the dash vent
and the high and low system pressure from the Ay'Cgauges.
2.
22-56
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Power Distribution
Fuse-to-Gomponent(sl Index (numerical sequence)
Under-hood Fuse/Rolay Box:
41
43
44
46
47
48
49
50
52
Capacity
'100 A
40A
7.5 A
15 A
40A
7.5 A
30A
204
204
15 A
10A
40A
40A
204
20A
Capacity
40A
204
7.5 A
wiro ColorFuseCircuit(s) Prot€cted
A
lgnition switch (BAT)
lntegrated control unit
Ceiling lights
Spotlights
PGM-Fl main relay
Not used
No. 7, 8, 10, 11 fuse in the under-dash fuse/relay box
Audio unit
Clock {'98 - 00 models)
Data link connector ('98 - 00 models)
ECM (VBU) {'98 - 00 models: M/T)
Heater control panel
PCM (VBU) (A./T)
Combination light switch (via under-dash fuse/relay box)
No. 20, 33 fuse in the under-dash fuss/relay box
Not used
Rear window defogger (via relay)
Door lock control unit
Hatch glass opener solenoid
Keyless door lock control unit ('98 - 00 models)
Horn relay
Horns (via relay)
via brake switch:
ABS control unit
Brake lights
Cruise control unit
ECM ('98 - 00 models: M/T)
High mount brake iight
PCM (4./T)
Trailer lighting connector
Turn signal/hazard relay (via switch)
Option connector (+B)
No. 6 fuse in the under-dash fuse/relay box
Blower motor (via relay)
Condenser fan motor (via relay)
Ay'C compressor clutch (via relay)
Radiator fan motor (via relay)
Wire Color Circuitls) Protoct
53
54
50
WHT/BLK
WHT/RED
WHT/BLK
WHT/BLU
WHT/BLU
WHT
WHT/GRN
WHT/GRN
WHT/GRN
WHT/BLK
WHT/RED
BLU/WHT
WHT
RED
BLK/RED
Under-hood ABS Fuss/nehy Box:
Fusg
61WHT
WHT/GRN
BRN/YEL
ABS pump motor {via relay}
ABS control unit
ABS control unit
{cont'd)
23-43
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Integrated Gontrol Unit
Circuit Diagram -'97 Model
UNDER.HOOD FUSEi RELAY 8OXBATTEFYI No.4' {'004) \0.d2'40A) |
cr*"
l__*l;;T
w_T ELK +!v_T
I H-uTr.r--i=r-
GFNi BLK
lo,,.h WINDSHIELD( il) WASHEB
Y
SWITCH
WHTiBLK
I
l-IVWHT]BLK WINDSHIELDI WASHERI MOTOB
WINDSHIELD WIPER/WASHEF 9WTTCH ,
OFF/INT INT
VV
tltltl
tl
BLUMHT
VWINDSHIELDWIPERMOTOR(As)
ag
3
YEL
RED/BLU
DRIVER'SSEATBELTswtTcHf CLOSED r Unbuckled )(OPEN :Buckled -.1
BEMINDEBLIGHT(r 4w)
BLK
G401
BL(I-tr-l
G552
23-64
tGNITtON SW lCrl
BLKryEL
KEY.IN/SEAT BELTand LIGHTS-ONBEMINDER CIRCUITNTERMITTENT WIPER RELAY CIRCUlT
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All Systems:
Cavity WireTest condition
Tost condition
Test: Desired r€sult
Test: Desired result
Intermittent Wipol System:
Cavity Wire
Possible cause if result is not obtained
Possible causs if result is not obtained
414Under all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401, G402). An open in the wire
A9
Under all conditionsCheck for voltage to ground:
There should be battery voltage.
. Blown No. 43 (7.5 A) fuse in the
under-hood fuse/relay box. An open in the wire
A6
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
. Blown No. 25 (7.5 A)fuse in the
underdash fuse/relay box. An open in the wire
B1BLU/BLK
lgnition switch ON (ll),
and windshield wiper
switch at OFF/lNT
Check for voltage to ground:
There should be battery voltage.
Elown No. 26 (20 A)fuse in the
under-dash fuse/relay box
Faulty windshield wiper switch
Faulty windshield wiper motor
An open in the wire
82BLUrur'HT
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
Blown No.26 (20 A) fuse in the
under-dash fuse/relay box
Faulty windshield wiper motor
An open in the wire
B3YEVBLU
lgnition switch ON (ll),
and windshield wipe.
switch at INT
Check for voltage to ground:
There should be battery voltage.Blown No. 26 (20 A) tuse in theunder-dash fuselrefay box
Faulty windshield wiper switch
An open in the wire
B4WHT/BLK
lgnition switch ON (ll),
and windshield washer
switch ON
Check for voltage to ground:
There should be battery voltage.
Blown No. 26 (20 A) fuse in the
under-dash fuse/relay box
Faulty windshield washer switch
An open in the wire
(cont'd)
23-69
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Daytime Running Lights Control Unit Input Test (Canadal
1.Remove the driver's dashboard lower cover and the
knee bolstet (see section 20).
Disconnect the connectors from the daytime run-
ning lights control unit.
Inspect the connector and socket terminals to be
sure they are all making good contact.
lf the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
lf the terminals look OK, make the tollowing
inout tests at the connector'
- lf anv test indicates a problem, find and correct
the cause, then recheck the system.
- lf all the input tests prove OK, the control unrt
IPCONNECTOR
must be faulty; replace it.
T€st condition
DAYTIME RUNNING LIGHTS
CONTBOL UNIT
Tost: Desired result
8P CONNECTOR
YEL/BLK
GRN/RED
Possible cause ii r$uh is not obtained
BLK/WHT
Cavity
RED/GRN
B1BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G401, G402)
. An open in the wire
A2BLK,4iVHT
Under all conditionsCheck tor voltage to ground:
There should be battery voltage.
Blown No. 20 (7.5 A) luse in the
under-dash fuse/relay box
An open in the wire
82YEUBLK
lgnition switch oN (ll)Check for voltage to ground:
There should be battery voltage.
Blown No. 18 (7.5 A) fuse in the
under-dash tuse/relay box
Faulty ignition switch
An open in the wire
A4RED
Combination light
switch in " =D " Posi-
uon
Check for voltage to ground:
There should be battery voltage.
Blown No.,tg (30 A) fuse in the
under-hood fuse/relay box
Faulty combination light switch
An open in the wire
A1WHT/RED
Combination light
switch OFF; connect a
jumper wire between
the 82 and 41 termi-
nals, then turn the igni-
tion switch ON (ll)
Headlights (high beam) should
come on, (and high beam
indicator should come on).
Poor ground (G201. G202, G401,
G402)
Blown headlight bulbs
Faulty daytime running lights
resrslor
An open in the wire
R'IGRN/RED
lgnition switch ON (ll),
brake fluid reservoir
full. and parking brake
lever down
Connect to ground: The brake
system light should come on.
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relaY box
Blown brake system light
An open in the wire
B68EDlGRNParking brake lever upCheck for continuity to ground:
There should be continuity
. Faulty parking brake switch
. An open in the wire
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