Door HONDA CR-V 1998 RD1-RD3 / 1.G Repair Manual

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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Mode Control Motor
Replacement
1. Disconnect the 7P connector from the mode control
motor. Remove the rod from the arm of the mode
control motor, Remove the self-tapping screws and
the mode control motor.
2.Install in the reveGe order of removal. After installa-
tion, make sure the mode control motor runssmoothlv.
7P CONNECTOR
MODE CONTROL MOTOR
Test
1.Disconnect the 7P connector from the mode control
motor.
Connect battery power to the No. 1 terminal, andground the No. 7 terminal. To avoid damaging the
mode control motor, do not reverse power andgrouno.
MODE CONTROL MOTOR
Using a jumper wire. connect the No. 7 terminalindividually to the No, 2,3, 4,5 and 6 terminals in
that order. Each time the connection is made. the
mode control motor should run smoothly and stop.
lf the mode control motor does not run when jump-
ing the first terminal, jump that terminal again afterjumping the other terminals. The mode control
motor is OK it it runs when jumping the first termi-
nal again.
lf the mode control motor does not run in step 3,remove it, then check the mode control linkage and
doors for smooth movement. lf they move smoothly,
reDlace the mode control motor.
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Recirculation Control Motor
Replacement
1. Oisconnect the 4P connector and the wire harness
clio from the recirculation control motor. Remove
the self-tapping screws and the recirculation control
motor,
lnstall in the reverse order of removal. After installa-
tion, make sure the recirculation control motor runs
smoothlv.
{P CONNECTOR
22-42
Test
1.
4.
Disconnect the 4P connector from the recirculation
control motor.
Connect battery power to the No. 1 terminal, and
ground the No. 2 and No. 4 terminals; the recircula-
tion control motor should run smoothly. To avoid
damaging the recirculation control motor. do not
reverse power and ground.
RECIRCULANON CONTROL MOTOR
Disconnect the No. 2 or No. 4 terminals from ground;
the recirculation control motor should stop at Fresh
or Recirculate. Don't cvcle the recirculation control
motor for a long time.
lf the recirculation control motor does not run in step
2, remove it, then check the recirculation control link-
age and door for smooth movement. lf they move
smoothly, replace the recirculation control motor.
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Air Mix Gontrol Motor
Replacement
1. Disconnect the 5P connector from the air mix con-
trol motor. Remove the self-tapping screws, the air
mix control motor and the flange collar.
AIR MIXCONTROLMOTOR
A
6
Install in the reverse order of removal. After installa-
tion. make sure the air mix control motor runs
smoothlv.
5P CONNECTOR
22-43
Test
1.Disconnect the 5P connector from the air mix con-
trol motor.
Connect battery power to the No. I terminal of the
air mix control moto., and ground the No, 5 termi-
nal; the air mix control moto. should run, and stop
at MAX HOT. lf it doesn't, reverse the connections;
the air mix control motor should run, and stoo at
MAX COOL.
lf the air mix control motor does not run, remove
it, then check the air mix control linkage and
doors for smooth movement.
lf they move smoothly, replace the air mix con-
trol motor.
AIR MIX CONTROL MOTOR
4.
Measure the resistance between the No. 2 and No. 3
terminals. lt should be approximately 6 kO t 20%.
Measure the resistance between the No. 2 and No, 4
terminals, lt should be approximately 4.8 kO:t 20% at
MAX HOT and approximately '1.2 kO t 20% at lilAx
cooL.
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Overhaul
Note these items when overhauling the blower unit.
. The recirculation contfol motor. the power transistor, the blower motor high relay, and the blower motor can be
replaced without removing the blower unit.
. Betore reassembly, makesurethatthe recirculation control doorand linkage move smoothly without binding.
o After reassembly, make sure the recirculation control motor runs smoothly (se€ page 22-42).
o Make sure that there is no air leakage.
RECIBCULATION CONTBOL MOTORReplacement. page 22-42
BLOWER
m
Tost, page 22-45
POWEB TMNSISTORTest. page 22'44
22-47
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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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Body Electrical
Speciaf Toofs ,...,..,.............-.23-2
Troubleshooting
Tips and Precautions ......,.,..........,.................. 23-3
Five-step Troubleshooting ........,.,.,...,,.,......... 23-5
Wire Color Codes ...,....,.. 23-5
Relay and Control Unit Locations
Engine Compartment ..,.,......,......................... 23-6
Dashboard ,.,.,..............-.- 23-7
Door ....................... .........23-10
Index to Cilcuits and Sysiems
Accessory Socket .. ,....,.,..,.,. 23-95*Airbags ................ .,....,. Sestion 24
Air Conditioning ,.,.,.... Section 22
Alternator ................... Section 4
Anti-lock Brake System {ABSI ................... Section 19'A/T Gear Position Indicator ....................... Section 1,1
Automatic Transmission System ...........,.. Section 14
Battery ................... ..............23-50
Blower Controls .,...,.,, Section 22
Charging System ....... Seqtion il
Clock -'98 Model ................ 23-98
Connector ldentification and Wire HarnessRouting .................. ......... 23.11
Cruise Control ............ Ssction 4
Dash Lights Brightness Contlo||er ..................... 23-90
Fan Conlrols ...,......,.... Section 10
Fuel Pump ,..,.,...,....,.... Section 11
Fuses...................... .,,.,.,.,.,,.,23-40*Gauges
Circuit Diagram ......-....-..23-58
Fuel Gauge .....,.,..... Section 11
Speedometer ..,..........,... 23-56
Ground Distribution ,....,.,...23-46
Hatch Glsss ODenor .........................,.,.,.,.,..,.,.,.,,. 23-121
Heater Controls .-........ Soction 21*Horns.,...,..,.,.,....... ................23"104*fgnition Switch ,,.,.,..,.,.,,.,.,.,23-51
lgnition Key Light System -'97 Mod6l .............. 23.88
-+
BODY
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Relay and Control Unit Locations
Dashboard (cont'd) and Door
REAR ACCESSORY SOCKET RELAYI Wire colors: YEL/GRN, JIWHT/BLK. BLK, .nd YEL/BLU l
REVERSE RELAY {A/TII Wire colonr YEI-/RED, IIYEL/RED, YEL, .nd GRN/BLK IREAR WINDOW WIPERCONTROL UNIT 137 mod.ll
KEYIISS/POWER DOOR L(rcKCONTROL UNIT
INTERLOCX CONTROL UNIT
23-10
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Gonnector ldentification and Wire Harness Routing
How to ldentity Connectors:
ldentification numbers have been assigned to all connectors, The number is preceded by the letter "C" for connectors.
"G" for ground terminals or "T" for non-ground terminals.
Location
HarnessEngine CompartmsntDashboardOthers lFloor, Door,
8oof, Tailgate)
Starter cableT1, T2 and @
Battery ground cableG1 and O
Engine ground cableT3
Transmission ground cableT4
G3
Engine wire harnessC101 through C137
T101 and T102
G101
Engine compartment ware harnessC201 through C218
G201 and G202
Under-hood ABS fuse/relay box
wire harness
t5ano9
Main wire harnessC301 through C309
C351 through C361
C401 through C447
G401 and G402
Dashboard wire harnessC501 through C524 (C525)
G501
Left side wire harnessC551 through C581
G551, G552 and G553
Right side wire harnessC601 through C605
lnterior wire harnessC701 through C703
Rear bumper wire harnessC641 through C643
Heater sub-harnessC731 through C740
Secondary heated oxygen sensor
sub-harness
C721 through C722
Combination switch sub-harnessC751 through C760
Driver's door wire harnessC661 through C667
Front passenger's door wire harnessC6Tl through C676
Left rear door wire harnessC681 through C684
Right rear door wire harnessC69'l through C694
Rear wire harnessC611 through C520
Tailgate wire harnessC631 through C634
G631
SRS main harnessC801 through C808
G801
High mount brake light sub-harnessC651 through C653
Fuel tank oressure sensor sub-harnessC645 through C647
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Connector ldentification and Wire Harness Routing
Main Wire Harness {Right side of dash and floor branchesl {cont,dl
Connector or
Tsrminal
Number ol
CavitiesLocationConnects toNotes
c427
c428
c429
c430
c431
c432
c433
c434
c435
c436
c436
c447
6
26
22
7
20
5
7
25Front passenger's door
Behind right kick panel
Behind right kick panel
Behind right kick panel
Behind right kick panel
Under right side of dash
Under .ight side of dash
Under middle of dash
Under middle of dash
Under middle of dash
Under middle of dash
Behind right kick panel
Front passenger's door wire harness(c671)
Right side wire harness {C601)ABS control unit
ABS control unit
Engine wire harness (C127)
PGM-Fl main relay
JUnotron connector
Tailgate open relay
Headlights f lasher relay
Heater sub-harness (C731 )Heater sub-harness (C731)
ECM/PCM
ABS
ABS
Optional
Optional'97 model'98 - 00
models'98 - 00
mooets
G402Under right side of dashBody ground, via main wire harness
23-22
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