Light relay HONDA CR-V 1999 RD1-RD3 / 1.G Repair Manual

Control Unit Input Test
l. Bemove the driver's dashboard lower cover and the knee bolster (see section 20).
2, Disconnect the 5P connector from the control unit.
3. Inspect the connector and socket terminals to be sure they are all making good contact.
. lf the terminals are bent, loose orcorroded, repairthem as necessary, and recheck the system.
. lf the terminals look OK, make the following input tests at the connector.- lf any test indicates a problem, find and correct the cause. then recheck the system.
- lf all the input tests prove OK, the control unit must be faulty; replace it.
IGNITION KEY LIGHTCONTROL UNIT
5P CONNECTOR
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Test conditionCavityWireTest: Desired resultPossible cause if r€sult is not obtained
BLKUnder all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground {G401, G402}. An open in the wire
'IWHT/GRN
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
. Blown No. 33 (7.5 A) fuse in the
under-dash fuse/relay box. An open in the wire
GRN
Driver's door openCheck for voltage to ground:
There should be 1 V or less.
. Faulty driver's door switch. An open in the wire
Driver's door closedCheck for voltage to ground:
There should be 4 V or more.
WHT/BLK
Under all conditionsConnect to ground: lgnition key
light should come on.
Blown No. 33 (7.5 A) fuse in the
under-dash fuse/relay box
Blown ignition key light bulb
An open in the wire
23-89
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Controller Input test
NOTE: The control unit is built into the dash lights bright-
ness controller.
1.Carefully pry the controller out of the dashboard.
Disconnect the 3P connector trom the controller,
Inspect the connector 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 following input
tests at the connector.- lf any test indicates a problem, find and cor-
rect the cause. then recheck the system.- lf all the input tests prove OK, the controller
must be taulty; replace it.
CsvityWireT€st condhion
Wire side oflemale terminals
Possible cause if result is not obi8inod
OASH LIGHTSBRIGHTNESSCONTROLLER
Tsst: Desired resuli
1R ED/BLK
Combination light
switch ON
Check for voltage to ground:
There should be battery voltage.
Blown No. 30 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
2BLKUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G401, G402). An open in the wire
5RED
Combination light
switch ON
Connect to ground:
Dash lights should come on full
bright.
. An open in the wire
23-91
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Rear Window Defogger
Function Test
1. Check for voltage between the positive terminal andbody ground with the ignition switch and defoggerswitch ON.
There should be battery voltage.
. lf there is no voltage. check for:- faulty defogger relay.- faulty defogger switch.- an open ,n the BLK/BLU, WHT/GRN, BLU/YEL,
or BLK wire.
. lf there is battery voltage, go to step 2.
POSITIVE TERMINAL
Check for continuity between the negative terminaland body ground.
lf there is no continuity, check for an open in thedefogger ground wire.
Touch the voltmeter positive probe to the halfwaypoint of each defogger wire, and the negative probe
to the negative terminal. Be careful not to scratch ordamage the defogger wires with the tester probe.There should be approximately 6 V with the ignitionswitch and the defogger switch ON.
. lf the voltage is as specified, the defogger wire isoK.
. lf the voltage is not as specified, repair the defog-ger wire.- lf it is more than 6 V, there is a break in thenegative half of the wire.- lf it is less than 6 V, there is a break in thepositive half of the wire.
23-112
Defogger Wire Repair
NOTE: To make an effective repair, the broken sectionmust be no longer than one inch.
1. Lightly rub the area around the broken section withfine steel wool, then clean it with alcohol.
2. Carefully mask above and below the broken portionof the defogger wire with cellophane tape.
CELLOPHANETAPE
Mix the conductive paint thoroughly. Using a smallbrush, apply a heavy coat of the conductive paint
extending about 1/8" on both sides of the break.Allow 30 minutes to dry.
Check for continuity in the repaired wire.
Apply a second coat of paint in the same way. Let itdry three hours before removing the tape.
5,
OPEN
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Disconnoci the 18P connestor from the pow€r door lock control unit.
Cavity WireTest conditionTost: Dcsired resultPo$ible csuse il result is not obtainod
Possible cause if result is not obtain€d
*: With keyless entry system
NOTE: To prevent damage to the motor, apply battery voltage only momentarily.
Feconnoct the 18P conneqtor to the power door lock control unit,
Cavity Wir6Test conditionTost: D€sirod result
118LKUnder all conditionsCheck for continuity to ground:
Ther€ should be continuity.
. Poorground (G55'l). An open in the wire
7BLU
Connect the No. 7 termi'nalto the No. 8 terminal,and the No. 6 terminal tothe No. 17 terminalmomentarily.
Check door lock operation:Driver's door should unlock.Faulty actuatorFaulty junction connector (C577)
An open in the wireBlown No. 51 (20 Al{use in the under-
hood fuse/relay box
GRY
Under all conditionsConnect to ground:Horn should sound,Blown No. 52 (15 A)tuso in the under-hood fuse/relay boxFaulty hornFaulty horn relayAn open in tho wire
YEURED
Connect the No. 'l8 termi-nalto the No. 8 terminal,and the No. 6 terminal tothe No. 17 terminalmomentarily.
Check door lock operation:Passenger's doors should unlock.Faulty actuatorAn open in the wireBlown No.51 (20 A)fuse in the under-hood fuse/relay box
WHT/RED
Connect the No.6termi-nal to th6 No. I terminal,and the No. 18 terminal tothe No. 17 terminalmomentarily.
Check door lock operationlAll doors should lock.Faulty actuatorAn open in the wireBlown No. 51 {20 A) fuse in ihe under-hood fuse/relay box
9BLU/RED
Connect an ohmmeterbetween the No. 9 termi-nal and the No. l7 termi-nal. Driver's door lockknob in UNLOCK
Check for conlinuity:There should be continuity.
' Faulty driver's door lock actualor. An open in the wire
WHT/GRNUnder all conditionsCheck for voltage to ground:
There should be battery voltage.Blown No. 51 (20 Alfuse in the under-hood tuse/relay boxAn open in the wire
10BLUAVHTDriver's door lock knob inLOCKCheck tor voltage to ground:There should be 1 V or less.Faulty driver's door lock actuatorPoor ground (G551)
An open in the wire
13BLU/REDlgnition key is in the igni-tion switchCheck tor voltage to ground:
There should b€ 1 V or less.Faulty ignition key switchPoor ground (G401, G402)An open in the wire
YELlgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.Blown No. 25 (7.5 A) fuse in the under-dash fuse/relay boxAn open in the wire
5YELConnect the No. 5terminal to the No. I ter-minal momentarily
Check hatch glass lock operation:Hatch glass should unlock.
. Faulty hatch glass opener solenoid. An opon in the wire
14LTGRN,NEDPassengor's door openCheck for continuity to ground:There should b€ continuity.
. Fa(llty door switch. An open in the wire
2GRN/R€DFront ceiling light"MlDDLE" positionCheck tor voltage to ground:There should be battery voltage.Faulty lront ceiling lightAn open in the wire
12GRNAr'VHTDriver's door lock switchin LOCKCheck lor voltage to ground:There should be 1V or less.Faulty driver's door lock switchPoor ground {G551)An open in the wire' GRN/ORNDriver's door lock switchin UNLOCK-
23-127
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-
CavityWi1€Test conditionTesi: Dssired rosultPo$ible cause if 183uh is not obtained
A11
BLK
Under all conditionsCheck for continuity to ground:
There should be continuity.
. Poor ground (G551)
. An open in the wire
B1
A10BLU/BLKlgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
Blown No. 7, 8, 10 or l1 (20 A)
fuse in the under-dash fuse/relay
box
Faulty power window relay
An open in the wire
A9GRN/BLK
A6YEUBLK
412RED/WHT
A4RE D/BLU
Connect the A10 termi-
nal to the 43 terminal,
and the A4 terminal to
the A11 terminal, then
turn the ignition switch
oN flr).
Check the driver's window motor:
It should run (the window moves
down).
. Faulty driver's window motor
. An open in the wire
A3RED/YEL
A1BLUI/EL
Connect the A9 termi-
nal to the A2 terminal,
and the Al terminal to
the 411 terminal, then
turn the ignition switch
oN flr).
Check the front Passenger'swindow motor:
It should run (the window moves
down).
Faulty front passenger's window
motor
Faulty front passenger's window
switch
An open in the wireA2BLU/ORN
A14YEL
Connect the 46 termi-
nalto the A13 terminal,
and the 414 terminal
to the A11 terminal,
then turn the ignition
switch ON (ll).
Check the right rear motor:
It should run (the window moves
oown).
Faulty right rear window motor
Faulty right window switch
An open in the wire
YEUGRN
A8GBN/YEL
Connect the A12 termi-
nal to the A7 terminat,
and the A8 terminal to
the A11 terminal. then
turn the ignition switch
oN flr).
Check the left rear motor:
,t should run {the window moves
down),
Faulty left rear window motor
Faulty ,eft rear window srrvitch
An open in the wire
GRN
A5BLU
Connect the A10 te.mi-
nal to the 43 terminal,
and the A11 terminal
to the 44 terminal.
then turn the ignition
switch ON (ll).
Check for voltage between the A5
and Al l terminals:
ADorox.6 V should be indicated as
the driver's window motor runs.
Faulty pulser
Faulty driver's window motor
An open in the wire
*clRED/BLK
Combination light
switch ON
Check fo. voltage to ground:
There should be battery voltage.
Blown No.30 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty combination light switch
An open in the wire
RED
Combination light
switch ON
Connect to ground:
Dash lights should come on full
bright.
' An open in the wire
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)Steering-related Precautions
Stooring Wh€el and Csble Re6l Alignm€nt
To avoid misalignment of the steering wheel on
reassembly, make sure the wheels are turned straight
ahead beJore removing the steering wheel.
To center the cable reel, rotate the cable reel clockwise
until it stops, Then rotate it counterclockwise (approxi-
mately two and a half turns) until the arrow mark on the
cable reel label points straight up.
Steering Column Bemoval
CAUTION: Before removing the stosring column, tirsi
disconneqt tha connsctor between tho cabls roel and
the SRS main harness.
lf the steering column is going to be removed without
dismounting the steering wheel, lock the sieering by
turning the ignition key to o-LOCK position, or remove
the key trom the ignition so that the steering wheel will
not turn.
LABEL
NOTE:
. When the airbag and cable r6el are disconnected, and
the battery is reconnected and the ignition switch is
turned ON (ll), the SRS unit will store this as an open
in the driver's airbag inflator, and the SRS indicator
light will come on, In such a case, make sure to con-
firm the DTC, then clear the SRS unit memory.
. For disconnecting the spring-loaded lock type con-
nector, refer to page 24-22.
'97 model:
SRS MAIN HARNESS2P CONNECTORCABLE REEL2P CONNECTOR
'98 - 00 models:
UNDER-DASHFUSE/RELAY BOX
Do not replace the original steering wheel with any other
design because it will make it impossible to properly
install the airbag (use only genuine Honda replacement
partsl.
After reassemblv, confirm the wheels are still turned
straight ahead and that the steering wheel spoke angle
is correct. lf minor spoke angle adjustment is necessary,
do so only by adjusting the tie-rods, not by removing
and repositioning the steering whee .
24-25
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SRS Indicator Light Wire Connections
SRS Indicator Light Power Circuit
DASHBOARD WIRE HARNESS
YEL
BLK
To UNDER-DASHFUSE/RELAY BOX <_
20P CONNECTOR
To GAUGEcsog + assEMBLy
SRS Indicator Light Control Circuit
SRS MAIN HARNESS
)-MAIN WIRE HARNESS
VAIVBIt
To UNDER-DASHFUSE/BELAY BOX2P CONNECTOR
c414MAIN WIRE HARNESS 3P CONNECTORTerminal side of msle t€rminals
c415MAIN wlRE HARNESS 24P CONNECTORTerminal aide of male terminals
c502DASHBOARD WIRE HARNESS 2OP CONNECTORWire side of lemslo terminsls
c503OASHBOARD WIRE HARNESS 24P CONNECTORWire side of female t€rminal3
c509DASHBOABD WIRE HARNESS 5P CONNECTORWire sid€ ot lemale te.minals
c801SRS MAIN HARNESS 2P CONNECTORwire side ol f.male terminals
c803SRS MAIN HARNESS 3P CONNECTORWire side ol female terminals
c806SRS MAIN HARNESS T8P CONNECTORWire side of lomrle terminals
)
24-33
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Troubleshooting
The SRS Indicator Light Doesn't Come On
CAUTION: Whenever the ignition switch is ON D, orhas been turned OFF for less than three minutes, becareful not to bump the SRS unit; the airbags couldaccidentally deploy and cause damage or iniuries.
Ch6ck the power supply (fuse):Turn the ignition switch ON {ll), and check whether the otherindicator lights come on (brake system, e(c.r.
Do the other indicator liglrts com6 on?
Check the No. 25 (7.5 A) fuse in the under-dash tuse/relayDOX.
ls the tus€ oK?
NO
Check the bulb:Replace the No.25 (7.5 A) fuse, and check that theSRS indicator light comes on.
Does the SRS indicator liqht come on?
YESNO
END
YES
Check the wire h.rnesi kwe€n fus€.nd gauge .3sembly:Check for an open in the wire harness between fuseNo. 25 (7.5 Al and the gauge assembly, and repair. Checkthat lhe SRS indicato.lighi
Does the SRS indic.tor liqht com6 on?
END
YESNO
Check the SRS indicator light bulb:1. Turn the ignition switch OFF.2. Remove the gauge assembly.3. Check lor blown SRS indicator tight bulb.
ls the SRS indicator tight bulb OK?
YESNO
Check the SRS indicator light circuit:Replace the bulb, and reconnect the gauge assemblyconneclors. Then turn the ignition switch ON {ll).
Does the SRS indicator light come on?
I YEs No
:ND
(A) To page 24-35(B) To page 24 35
24-34
lr-
lu
-J
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Troubleshooting
From page 24-35
Check lhe wire harness otthe SRS indicator light circuit l2l:L Turn the ignitjon switch OFF.2. Disconnect the SRS main harness 3p connector from themain wire harness.3. Connect a voltmeter between the No. I terminal (+) ofthe SRS main harness 3P connector and qround.4. Turn the ignition switch ON (ll), and measure voltaqe.
ls there 8.5 V o. less tor six seconds atter the ignitionswitch has been turned ON
Short to power in th€ BLU wire of the main wiro halno3s;
Check th€ wire hahess of th6 SRS indicator ci.cuit {31:1. Turn the ignition switch OFF.2. Disconnect the battery negative cable, then the positivecable, and wait three minutes.3. Disconnect the driver's and front passenger,s airbag con-nectors {and disconnect the seat belt tensioner connectors}(see page 24-23).4. Disconnect the SRS main harness 18p connector from
5. Reconnect the battery positive cable, then reconnect thenegative cable.6. Connect a voltmeter between the No. 6 terminal (+) ofthe SRS main harness 'l8P connector and ground.7. Turn the ignition switch ON (ll), and measure voltage. Thereshould be 0.5 V or less.
Short to power in the BLU wire oI the SRS main harngas;
The SRS Indicator Light Doesn't Come On (cont,dl
'97 modol:
J
MAIN WIRE HARNESS3P CONNECTOR
UNDER.DASHFUSE/RELAY BOX
'98 - 00 models:
SRS MAIN HARN€SS3P CONNECTOR
MAIN WIRE HARNESS3P CONNECTOR
SRS MAIN HARNESS3P CONNECTOR
SRS MAIN HARNESS3P COI{NECTOB
FUSE/RELAY BOX
c803
SRS MAIN HARNESS18P CONNECTOR
24-36
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The SRS Indicator Light Doesn't Go Off -'97 model
CAUTION: Whenever th€ ignilion switch i3 ON (lll, ol
has been turn€d OFF for less than three minutes, be
careful not to bump the SRS unit; the airbags could
accidenially deploy and cause damag€ or iniuries.
Try to reproduce the sRs indicator light:
1. Erasethe DTC memory (see page 24 28)
2. Turn the ignition switch ON {ll), and check that the SRS
indicator light comes on for about six seconds and thengoes off.
Doe3 the SRS indicator light slay on?
YESNO
Intermiftent ftilure, system is OK at this time. S€o Troubl€_
shooting Intermittent Failutes on p.ge 24_28.
Check the No. 13 (15 Al fuse:'L Turn the ignition switch OFF.
2. Check for blown No. 13 (15 A) fuse in the under dash
fuse/relay box.
ls lhe tuse OK?
YESNO
Replace the luse, and err3e the memory'1. Replace the No. 13(15A)fuse2. Erase the DTc memory (see page 24-28).
3. Turn the ignition switch ON (ll).
ioes the SRS indicatol light go off after 3ix s6conds?
YESNO
ENO
Confirm tho OTC, and continue ttouble3hooting.
Check for an open in the SRS main hatn€ss {VA lins}:
1. Disconnect the batterY negative cable, then disconnect
the positive cable, and wait for three minutes.
2. Disconnect the driver's and front passenger's airbag con
nectors (see page 24-23).
3. Disconnect the SRS main harness 18P connector from
the sRs unit.4. Reconnect the battery positive cable, then reconnect the
negative cable.5. Connect a voltmeter between the No. 7 terminal (+) ot
the SRS main harness l8P connector and 9rouncl6. Turn the ignilion switch ON {ll).
ls there battory voltage?
YESNO
Ooen in the SRS main harness {VA line); replace the
natnoss.
(A)
No. 13 115 Al FUSEUNOER.DASHFUSE/RELAY BOX
)
SRS MAIN HARNESSr8P CONNECTOR
SRS MAIN HARNESS 18P CONNECTOR
(cont'd)
24-37
SRS UNIT
To page 24 38
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