Page 973 of 1395

Troubleshooting
DTC 51 - 53: ABS Pump Motor (cont'dl
(From page 19 49)
UND€R-HOOO ABSFUSE/REI-AY BOX
MOTOR +B IREDIMOTOR GND IBLKI
TERMINAL TERMINAL
PUMP MOTOR CONNECTOB
Fr MOTOR +B {WHTI12 lF-(v)vI
Terminal side of female terminals
Terminalside ofmaleterminals
ABS CONTROL UNIT 22P CONNECTOR
JUMPER WIRE
Wire side of female terminals
Chock the pump motor ci.cuit:1. Remove the pump motor relay.2. Turn the ignition switch ON {ll).3. Connect the pump motor relayconnector +B and MOTOR ter-minals with a jumpor wire fora moment,
Check for an open in the pump
motor +B circuit:1. Turn the ignition switch OFF.2. Disconnect the pump motor
3. Turn the ignition switch ON (ll).
4. Connect the pump motor relayconnector +B and MOTOR terminals with a iumper wire.5. Measure the voltage beaveenthe pump motor connectorterminal No. l and bodygrou nd.
Does the pump motor operate?
Bepair opon in the wire botweenthe under-hood ABS fuse/relavbor and the pump motor.ls there battery voltage?
Check the pump motor opera-tion:Connect the battery (+)terminal tothe pump motor connector termi-nal No. 1, and the (-) terminal tothe terminal No. 2 for a moment.
Reolace the modulator unit.
lFaulty pump moto.lDoes the pump motor operate?
Ch6ck for a short to body groundin the PMR circuit:1. Turn the ignition switch OFF.2. Disconnect the ABS controlunit 22P connector.3. Check tor continuity betweenterminal No. 19 and bodyground.
Repair open in the wire bstweenthe pump motor and body ground,
or poo. ground {G3511.
Repair short to body ground inthe wir6 botween the under-hood ABS tuse/rclay box and th€ABS contlol unit.
{To page 19-51)
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Page 974 of 1395

(From page 19-50)
Chcck for .n opsn in the PCOMcircuit:1. Turn the ignition switch OFF.2. Reconnect the ABS controlunit 22P connector.3. Connect the SCS service con-nector.4. Turn the ignition switch ON {ll).5. Measure the voltage betweenthe pump motor relay con-nector PCOM terminal andbody ground.
Repair opon in the wire betwoenthe under-hood ABS fuse/relaybox and tho ABS conlrol unh.ls there approx.3 V?
Check for an open in tho PMR cir-cuh:Measure the voltage between theABS control unit 22P connectorterminal No. 19 and body ground.
Ropair open in tho wir6 botwagntho undcr-hood ABS fuse/rolaybox .nd the ABS control unit.ls there approx. 3 V?
Ch.ck tor an opon in the MCKci.cuit:1. Turn the ignition switch OFF.2. Disconnect the SCS serviceconnector.3. Turn the ignition switch ON (ll).
4. Measure the voltage betweenthe ABS control unit 22P connector terminal No. 17 andbody ground while connect-ing the pump motor relayconnector +B and MOTOR ter-minal with a jumper wire tormoment,
Repair open in the wiro bdtweenthe under-hood ABS fus6/telaybox .nd the ABS control unit.ls there battery voltage?
Chock for loose ABS control unitconnectoas, It necsssary, substi-tule a known-good ABS controlunit and aocheck.
tr) l--l
r"r
ABS CONTROL UNIT 22P CO NECTOR
Wire side of female terminals
1t011
MCK IBRN,/YEL}
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Page 975 of 1395
![HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual
Troubleshooting
DTG 54: Main Relay
IWHT/GRNI
AAS CONTROL UNIT 26P CONNECTON
Wire side of female terminals
ABS COf{TROL UN]T 22P CONNECTOR
PCOMIGRN/WHTIscoM{BLK/WHTI
Wire side of female terminals
- Wi HONDA CR-V 1998 RD1-RD3 / 1.G Workshop Manual
Troubleshooting
DTG 54: Main Relay
IWHT/GRNI
AAS CONTROL UNIT 26P CONNECTON
Wire side of female terminals
ABS COf{TROL UN]T 22P CONNECTOR
PCOMIGRN/WHTIscoM{BLK/WHTI
Wire side of female terminals
- Wi](/manual-img/13/5778/w960_5778-974.png)
Troubleshooting
DTG 54: Main Relay
IWHT/GRNI
AAS CONTROL UNIT 26P CONNECTON
Wire side of female terminals
ABS COf{TROL UN]T 22P CONNECTOR
PCOMIGRN/WHTIscoM{BLK/WHTI
Wire side of female terminals
- With the ignition switch ON(lll, the ABS indicator doesnot go off.- With the SCS service connec-tor connected {see page 19-381,DTC 54 is indicatod.
Check the ABS +B 120 A) fuse inthe under-hood ABS luse/relaybox, and reinstall the fuse if it isoK.
FeDlace the tu3e and recheck.
Ch€ck tor an open in the 81, 82circuit:Measure the voltage betweenbody ground and the ABS controlunit 26P connector terminal No. 14and No. 15 individually.
Repair open in the wiro bstweonth6 ABS conirol unit and theunder-hood ABS fuse/rolay box,
ls there battery voltage?
Check for a short to body groundin the PMR circuit:L Turn the ignition switch OFF.2. Remove the pump motor relay.3. Disconnect the ABS controlunit 22P connector.4. Check lor continuity betweenterminal No. 19 and bodygrouno.
Repair short to body ground inthe wire betweon the under-hood ABS lGe/r.lay box and theABS control unit.
Check for a short to body groundin the PCOM, SCOM cilcuit:1. Disconnect the ABS controlunit 26P connector.2. Check tor continuity betweenbody ground and the ABS con-trol unit 26P terminals No- 1and No.2 individually.
. R€pair short to body ground inth€ P1COM circuit wire betweenthe ABS control unit and theund6r-hood ABS tuse/r6layoox.. R6p.ir short to body ground inthe PCOM or SCOM circuit wirebetweon th6 ABS control unitand lhe mod!lator unit.. R.Dlece tho modulrtor unit.(Short circuit inside the unitl
ls there continuity?
(To page 19-53)
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Page 1034 of 1395

Dashboard Removal and Installation
SRS components are located in this area. Review the SRS
component locations, precautions, and procedures in the
SRS section {24) before preforming repairs or service.
CAUTION:
. When prying with a flat-tip screwdriver, wrap h withprotective tap€, and apply protective tape around the
related parts to prevgnt damage.
. Put on gloves to prot€ct your hands.
NOTE:
. An assistant is helpful when removing and installing
the dashboard.
. Take care not to scratch the dashboard, bodv and
other related parts.
1.Make sure you have the anti-theft code for the
radio, then write down the frequencies for the
radio's preset buttons.
Disconnect the negative battery cable. and wait at
least three minutes before beginning work.
Removei
a Driver's dashboard lower cover and knee bolster(see page 20-48)
. Glove box (see page 20-49)
. Lower console cover and center pocket (A/T
model, see page 20-49)
. Center console and center upper pocket (M/T
model, see page 20-47)
. Center dashboard lower cover (see page 20-50)
. Power window switch (see page 20-51)
. Driver's side air vent (see page 20-52)
. Driver's side defogger trim (see page 20-52)
Disconnect the driver's airbag connector, and lower
the steering column (see section 17)
NOTE: To prevent damage to the steering column,
wrap it with a shop towel.
2.
5. Remove the dashboard side cover. Disconnect the
dashboard wire harness connectors, remove the nuts,
then move the under-dash fuse/relay box. Disconnect
the antenna lead, and detach the harness clips.
Remove the connector holder from the dashboard
frame. Unbolt the control unit/relay bracket from
behind the middle of the dashboard.
HARNESS
6. Remove the passenger's dashboard lower cover.
D: Clip locations,
nl
-$t- Issj
I
ANTENNALEAD
>: Clip locations.
rttl
slllll
>: Scr€w location, 1
I
SF:oo I-l
SRS MAINHARNESS
UNDER.DASHFUSE/RELAYBOX
OASHBOARDSIDE COVER
6x1.0mm9.8Nm11.0kgf.m,7.2tbt.ftlDASHBOARDFFAME
CONNECTORHOLDER
PASSENGER'SDASHBOARDLOWER COVER
{cont'd)
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Page 1095 of 1395
SLOWER MOTOR RELAY,RADIATOR FAN RELAY.CONDENSER FAN REI-AY,COMPRESSOR CLUTCH RELAY(Located in the undeFhood fuse/relay box)Test. page 22-45
CONDENSER FAN 2P CONNECTOB
RADIATOR FAN2P CONNECTORA/C PRESSURE SWITCH2P CONNECTOR
COMPARTMENTWIRE HARNESS
{cont'd)
1P CONNECTOR
22-5
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Page 1098 of 1395
Circuit Diagram
UNDER.DASHFUSEiRELAY BOXIGNIT ON SWITCHUNDEB HOOD FUSE/RELAY BOX
/6'^' F;t"^i IwHTBLK + **f ,o+trrffl- eLK/YEI f
\_-./
,JCPRESSURESWITCN2 /: 1Btu/RED -{.-!}- Btu/yvHT\,-/
BLU'ryVHTBLK
G401G402
RED
I,
mI d I CoMPRESSORI I I CLUTCH
LIl
I
CONDENSER
MOTOR
BLK/RED GRN WHT
I I,^,^,", I
L^"^,Y**t,|
T*.'1 Y
lllBLK BLK BLK
rtl
lll---
G201 G101 G202
COMPRESSOFCLUTCHRELAY
22-8
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Page 1100 of 1395

Troubleshooting
Symptom Ghart
For electrical malfunctions which are indicated by the self-diagnostic system, reter to selt-diagnosjs function (see next
page).
Note these items before troubleshooting a symptom.
. Check the engine coolant level, and allow the engine to warm up before troubleshooting.
. Anv abnormality must be corrected before continuing the test.
. Because of the precise measurements needed, use a digital multimeter with an output of 1 mA or less at the 20 kO
range when testing.
. Before performing any troubleshooting procedures check:
- Fuses No. 47 17.5 AJ, No. 55 (40 A), No. 56 (20 A), No. 57 (20 A) in the under-hood fuse/relay box, and No. 17 {7.5 A) in
the under-dash fuse/relay box.._ Grounds No. G101, G201, G202, G401, G4O2
- Cleanliness and tightness of all connectors
SymptomSse pags
Mode control motor does not run, or one or more modes are inoperative.
Recirculation control door does not change between Fresh and Recirculate.22-24
Radiator fan does not run at all (but condenser fan runs with the AVC on).
Condenser fan does not run at all {but radiator fan runs with the Ay'C on).22-29
Both fans (radiator and condenser) do not run for engine cooling. but they both run with the A,/C
on.
Both fans do not run with the Ay'C on22-33
Compressor clutch does not engage.22-34
AJC svstem does not come on (both fans and compressor).22-37
Both heater and A/C do not work,22-39
22-10
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Page 1106 of 1395

Troubleshooting
Blower Motor
Recirculation indicator light indicates Diagnostic Trouble Code (DTC) 2: A problem in the blower motor circuit.
The speed of the blower motor is controlled by signals sent from the heater control panel,
BLOWER MOTOR 2P CONNECTOR
JUMPEFw|RE
Wire side of lemale terminals
Blower motor do.3 not run at all.
Selt-diagnosis circuit check indi-cates a problem in the blowermotor circuit,
check rhe No. 55 (40 A) {use inthe under-hood fuse/relay box,and the No. 17 (7.5 A) fuse in theunder-dash fuse/relay box.
Replace th6 fuse(s), and rechalck.
Check tho blowe. motor inputand output cilcuh:1. Connect the No. 2 terminal ofthe blower motor 2P connec-tor to body ground with ajumper wrre.2. Turn the ignition switch ON (ll).
Does the blower motor run?
Chock the blower moto.:1. Disconnect the jumper wireand the blower motor 2P con-nector.2. Measure the voltage betweenthe No. l terminal and bodygrou nd.
Check tho blower motor rolay:1. Turn the ignition switch OFF.2. Romove the blower motorrelay from the under-hoodfuse/relay box, and test it (seepage 22 45l'.
fo page 22-11
fo page 22-19
22-16
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