1998 HONDA CR-V Ignition

A/C aystem does not come on{both fans and comDrossor).
Ch6ck lor .n open in the wire:1. Disconnect the A,/C pressureswitch 2P connector.2. Turn the ignition switch ON (ll).
3. Measure the voltage betweenthe No.2 terminal and bodyground.
ls there approx. 5 volts?
check tho PcM/EcM:Using a *Backprobe Set (T/N
07SAZ 0010004). measure thevoltage between the No.5 t27lterminal of the PCM/ECM connec,tor C (31P) [A 132P)l and bodyground with the PCM/ECM con-nectors connected,I l: '98 - 00 models
Rop.ir open in th6 wire botweonthe A/C Dr*sure switch and thePCM/ECM.
ls there approx.5 volts?
Check tor loo3e wires or Doorconnections at the PCM/ECMconnoctor C l3lPl lA (32Pll. It theconnections arg good, 3ubdtitut€a known-good PCM/ECM, andrecheck. ll the 3ymptom/indica-tion go.. eway, r€placo thG origi-nal PCM/ECM,[ ]: '98 -00 models
A/C System
A/C PRESSURE SWITCH 2P CONNECTOR
fo page 22-38
PCM CONNECTOR C (31PI
'97 modol:
Wire side of female terminals
PCM/ECM CONNECTOR A I32P'
38 - 00 modeb:
Wire side of female terminals
* How to use the Backprobe SetsConnect the backprobe adapters to the stacking patch cords, and connect the cords to a multi-meter. Using the wire insulation as a guide for the contoured tip ol the backprobe adapter,gently slide the tip into the connector from the wire side until it comes in contact with the ter.minalond olthe wire (see section 11).
(cont'd)
22-37
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Troubleshooting
A/G System {cont'd)
From page 22-37
A/C PRESSURE SWITCHCheck th€ A/C pressure switch:1. Turn the ignition switch OFF.2. Check lor continuity bgtweenthe No. 1 and No.2 terminalsofthe A,/C pressure switch.
Check for proper Ay'C system pressure.
Roplece tha A/C pr€ssure switch.
Chock lor an opgn in thg wire:1. Feconnect the A/C pressure
switch 2P connector,2. Remove the heater controlpanel (see page 22-46).3. Turn the ignition switch ON llli.4. Measure the voltage betweenthe No. 10 terminal of theheater control panel 20P con-nector and body ground.
Repair open in the wir. botwcenthe A/C pres3ur€ switch and theheater control oanel.ls there approx. 5 volts?
Check lor loos6 wiras or pool
connections at the heater controlDanel 20P connoctor and at theA/C pr.ssule switch 2P connsc-tor. lf the connections ere good,
substitute a known-good heatarco trol pangl, end recheck. lf thesymptom/indication goes away,replace the original heater conlrolpanel.
HEATER CONTROL PANEL 2OP CONNECTOR
Wire side ol female terminals
22-38'
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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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Evaporator Temperature
SensorPower Transistor
Test
Dip the sensor in ice water, and measure the resistance
with a digital multimeter. Then pour hot water on the
sensor, and check lor change in resistance.
Compare the resistance reading between the No. | 8nd
No. 2 terminals of the evaporator temperature sensor
with the specifications shown in the following graph;
resistance should be within the specifications.
EVAPOBATOR TEMPERATURE SENSOB
Terminal side ol male terminals
4
RESISTANCEko
t0
50 68 86.F10 20 30'c
22-44
12V 1.2-3.1W
No. 2 ILT GRN/BLK)
No. I IBLU/BLK)
Test
1.Disconnect the 3P connector from the oower tran-
st$or.
Carefully release the lock tab on the No. 2 terminal in
the 3P connector, then remove the terminal and insu-
late it from body ground.
Connect a 1.2 - 3.4 W bulb between the No, 1 and
the No,2 cavity on the 3P connectol
Reconnect the 3P connector to the power transistor.
Turn the ignition switch ON (ll). and check that the
blower motor runs.
a lf the blower motor runs at half soeed the oower
transistor is OK, replace the heater control panel.
. lf ths blower motor does not run at half soeed,
reDlaca the Dower transistor.
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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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DAYTIME BUNNING LIGHTSCONTROL UNIT (Canrda) {'98 - (X) modok)IGNITION KEY LIGHTCONTROL UNIT l€7 model)
OAYTIME RUNNING LIGHTSCONTROL UNIT lcanad!l l'97 modell
CRUISE CONTNOL UNIT
HORN BELAY 137 modellIwiro color3: WHT/GRN, IIWHT/GBN, GRY, and BLU/REDI
IWir6 color3: BLK/WHT, BLK^ UHT,I
lGRY,.nd BLx/nED I
STARTER CUT RELAY {'98 - 00 modelsl
STARTEn CUT RELAY l€7 mod€ll
lwire colors: BLK/WHT, BLK/WHY,l
IGRY, and BLK/RED IHORN FELAY l'98 - 00 modcb)lwire coloF: WHT/GRN, lLWHT/GRN, GRY, and BLU/REDI
{cont'd)
23-9
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Power Distribution
Fuse
1
3
5
6
7
I
9
10
11
12
13
14
"^
RED/B LU
RED/GRN
WHT/BLK
RED/VVHT
YEUBLK
RED
GRN/BLK
BLU/BLK
YEVBLK
YEUGRN
RED
BLK/YE L
BLK/VVHT
17
7.5 A
7.5 A
BLVBLU
BLKA/EL
18
19
20
22
7.54
7.54
l0 A
10 A
YEUBLK
YEVRED
BLKAr'YHT
RED /VHT
RED/YE L
Fuse-to-Component(sl Index (numerical sequencel (cont'dl
Under-dash Fuse/Relay Box:
Capacity
10 A
10 A
10 A
10 A
20A
204
15A
204
204
7.5 A'15 A
7.5 A
7.5 A
Wire ColorCircuit{s) Protected
Not used
Not used
Rear window washer motor (via switch)
Rear window wiper control unit ('97 model)
Rear window wiper motor
Daytime running rights resister {Canada)
Right headlight {High beam}
Daytime running rights resister (Canada)
High beam indjcator light
Left headlight (High beam)
Rear accessory socket (via relay)
Left rear power window motor (via switch)
Right rear power window motor (via switch)
Distributor (ignition control module)
Front passenger's power window motor (via switch)
Driver's power window motor {via switch)
Power window master switch (power window control unit)
Turn signal/hazard relay (via switch)
PGM-FI main relay
SRS unit (VA)
Cruise control unit (via switch)
Cruise main switch indicator light
Alternator
Charging system light
ELD unit (USA)
EVAP bypass solenoid valve ('98 - 00 models)
EVAP control canister vent shut valve ('98 - 00 models)
EVAP purge control solenoid valve
Primary HO2S
Secondary H02S
VSS
ABS control unit
Option connector (lG2)
Ay'C compressor clutch relay
Blower motor high relay
Blower motor relay
Condenser fan relay
Heater control panel
Left power mirror actuators (via switch)
Mode control motor
Radiator fan relay
Recirculation control motor
Right power mirror actuators (via switch)
Daytime running lights control unit (Canada)
Back-up lights
Reverse relay (A"/T)
Daytime running lights control unit (Canada)
Right headlight (Low beam)
Left headlight (Low beam)
23-44
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under-dash Fuse/Relay Box:
Fuse Capacitywir6 ColorCircuit(sl Protocted
SRS unit (VB)
Power window relay
Integrated Control Unit
ABS indicator light
A/T gear position indicator light
Clock ('98 - 00 models)
Cruise indicator light
Gauge assembly
Interlock control unit (A,/T)
Keyless door lock control unit ('98 - 00 models)
Power door lock control unit
Shift lock solenoid (lVT)
SRS indicator light
Integrated control unit ('98 - 00 models)
Integrated control unit (via windshield wiper switch)
Windshield washer motor (via switch)
Windshield wiper motor
Front accessory socket
Rear accessory socket relay
Option connector (ACC)
Audio unit
Not used
Option connector (dash lights)
Integrated control unit
Ashtray light
A,/T gear position indicator light
Audio univclock ('97 model)
Audio unit ('98 - 00 models)
Clock ('98 - 00 models)
Cruise indicator light
Cruise main switch light
Dash lights brightness control unit
Gauge lights
Hazard warning switch light
Heater control panel
Power window master switch light ('99 - 00 models)
Integrated control unit
ECM ('98 - 00 models: M/T)
PCM (4./T)
PGM-Fl main relay
Left front pa.king light
Left front side marker light
Left rear side marker light
Left taillight
License plate light
Right front parking light
Right front side marker light
Right rear side marker light
Right taillight
Trailer lighting connector
lgnition key light
lgnition key light control unit ('97 model)
Interlock control unit (via ignition switch)
Key interlock solenoid
25
PNK
;
10 A
7.5 A
7.5 A
28
10A
10A
7.5 A
204
7.5 A
7.5 A
GRN/BLK
YEUGRN
YEURED
a, olrL"
29
30
BLU,ryVHT
RED/GRN
7.5 AWHT/G R N
23-45
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