troubleshooting HONDA CIVIC 1999 6.G Workshop Manual

Charging System
Troubleshooting (cont'd)
Alt6rnator/Regulator Test
NOTE: Make sure the baftery is sufficiently charged (see page 23-9j).
FIELDSELECTOR
LOAD AOJUSTER{CARAON PILEI
FULL FIELOTESTERLEAD IBLUI
VOLTMETERNEGATIVELEAD IBLKI
VOLTMETERPOStTtVELEAD (REDI
NEGATIVE TESTERCABLE IBLKI
POSITIVE TESTERCABLE IREDI
TEST SELECTORswrTcH
INDUCTIVEPICK-UP
IGRNI
INDUCNVEPICK.UP
TIVETEBMINAL
Alte.nator/Regulator Test'1 :L Connect a Sun VAT 40 (orequivalent tester), and tu rnthe selector sw;tch to position1(staning).2. Shift to neutral (A/T in E orE) position, and start theengine. Hold the engine at3,000 rpm with no load untilthe radiator fan comes on,then let it idle.3. Raise the engine speed to2,000 rpm, and hold it there.
ls the voltage over 15.1 V?
Alternalor/Regulator Te3t-2:1. Release the accelerator pedal,and let the engine idle.2. Make sure all accessories areturned ofi. Turn the selectorswitch to position 2 (charging).3. Bemove the inductive pick-up,and zero the ammeter,4. Place the inductive pick-upover the battery ground cableso that the arrow points to thebattery negatlve terminal.5. Raise the engine speed to2,000 rpm, and hold it there.
ls the voltage less than 13.5 V?
Alternator/Regulator Test-3:Apply a load with a VAT-40 untilthe battery voltage drops tobetween 12 - 13.5 V.
tffil rCI
[ @lBt* . ,*n 'aHrl
L-;-;l rs-
23-11A
To next page

Gauge Assembly
Component Location Index
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRS
section (24) before performing repairs or service.
6x1.0mm9.8 N.m 11.0 kgf.m,22lbt.lrl
VEHICLE SPEED SENSOR {VSS)Troubleshooting, page 23-1 40
GAUGE ASSEMBLYGau ge/lndicator/TerminalLocation Index, page 23-129Removal, page 23-135Bulb Location, page 23-136Disassembly, page 23 138
PARKING BRAKE SWITCH
FLUIO LEVEL SW]TCH
23-128
ENGINE OIL PR€SSURE SWITCH

Vehicle Speed Sensor (VSSI
Troubleshooting
Before testing, inspect the No. 15 (7.5 A) fuse in the under-dash fuse/relay box.
TEST HARNESSOTLAJ _ PT3O2OAREO TEST HARNESSCLIP
PROTECTIVETAPE
TEST HARNESSOTLA' . PT3O2OA
(To next page)
Test the BLK wire:1. Disconnect the 3P connectorfrom the vehicle speed sensor(vss).
2. Connect the test harness(07LAJ PT30200) only to theengine wire harness,3. Connect the RED test harnessclip to the positive probe of a
4. Check for continuity betweenthe RED test harness clip andbody ground.
Repair opon in the BLK wireb€twe€n the VSS and G101.ls there continuity?
Te3t the BLK/YEL wire:1. Connect the WHT test harnessclip to the positive probe of avoltmeter, and connectthe REDtest harness clip to the negativeprobe.2. Turn the ignition switch ON {ll).
Repair open in iho BLK/YEL wirebetween the VSS and the under-d6sh tuse/relav box.
vss
GRN TEST HARNESS
RED TEST HARNESS
WHT TEST HARNESS CLIP
23-140

Power Door Locks
Troubleshooting
NOTE: The numbers in the table show the troubleshooting sequence.
*: With keyless entry system
NOTE:
. When the remote transmitter button is pressed the first time, only the driver's door will unlock. When the button is
pressed the second time, all the doors will unlock.
. Thedoorswill relock a utomatica lly after 30 seconds if a door is not opened, or the key is out ot the ign ition switch.
. The keyless entry system will not lock or unlock the doors when the key is in the ignition switch.
Item to be inspected
Symptom
s
{o
x6
tn6
l5
€5
5O
o:E,
ooo>
o
;
o
>t
6<
o:
3
:o
o
.9
':
E
F
q)
<5
I
E
c
Power door lock svstem does not work at all.1ucc IWHT/GRN
Doors don't lock with driver's
door lock knob switch.
All doorsI2BLU,ryVHT
One or more
doors
YEURED or
WHT/RED
Doors don't lock or unlock
with driver's door lock switch.
All doors
1
GRN/WHT,
GRN/ORN,
YEURED or
WHT/RED
One or more
ooors
YEURED or
WHT/RED
*The power door lock system works properly but
the keyless entry system doesn't.1G401
G402
GRNAVHT or
GRNiORN
23-256

)
Troubleshooting
Sef f -dia gnostic Proctdurcs ............. 2+13
Reading the DTC .............................. 2+13
Erasing the DTC Mcnrory ................ 24-15
Troubleshooting h.ttnitt.nt
Failures ..............24-15
SRS U n it ldcntificrtion .................... 24- 1 6
Diagnostic Troublc Code (DTC)
Chart - '96 - 97 Models..."'."....... 24-17
Diagnostic Trouble Code (DTCI
Chart - '$ - 00 Models '.........""' 24'19
SRS lndicaror Light Wire
connections ...'.,24-25
Ff owcharts ........,,,,.24-26
Airbag
Repfacemant ...'.'...24-67
Disposaf .................24'70
Cable Reel
Repfacement .........24'72
SRS Unh
Repfacement ..'......24'76
l-l
-+
sRs
Supplemental Restraint System (SRSI
Speciaf Tools ... ...........24'2
Component/Wirin g Locations
fndex ................ ......24-3
Description ................ 24-5
Circuit Diagram ......." 24'6
Precautions/Procedures
Generaf Precautions ...............,,,,,,,.. 24-7
Airbag Handling and Storage .........24-7
SRS Unit Precautions ...................... 24-8
Inspection After Deployment ........' 24-8
Wiring Precautions ................... ....... 24'9
Backprobing Spring-loaded Lock
Connectors .......,24-9
Spring-loaded Lock Connectol ....,,. 24-10
Spring-loaded Lock Connector with
Built-in Short Contact ................. 24-10
Disconnecting the Airbag
Connector(sl .....' 24'11
Steering-related Precautions ...,.,.,,. 24'12

Component/Wiring Locations
)
Index: With Front Passenger's Airbag
SRS INDICATOR LIGHT (ln the gauge assemblvl
Troubleshooting, Page 24 13
Gauge assembly, section 23CABLE REEL
Replacemenlpage 2!-t 2
To HORN SWITCH
SRS UNIT(lncluding safing sensor
and imPact sensorl
Replacement Page 24 76
To DRIVER'S AIRBAG
DASHBOARD WIRE HARNESS
to SRS INDICATOB LIGHT in
GAUGE ASSEMBLY5P CONNECTOB
DBIVER'S AIRBAG
Beplacement,page 24-61Disposal, page 24 70FRONT PASSENGER'S AIBBAG
Replacement, Page 24_67
Disposal, Page 24 70
t
SRS MAIN HARNESSto CABI-E RE€L2P CONNECTOR
SRS MAIN
SERVICE CHECKCONNECTOR {2PI
IBRN, BLK]
to UNOER-OASHFUSE/RELAY BOX2P CONNECTOR
SRS MAIN HARNESSto FRONT PASSENGER'SAIRBAG2P CONNECTOB
SRS MAIN HARNESSto SRS UNITr8P CONNECTOR
SBS MAIN HARNESSto MAINWIRE HARNESS3P CONNECTOR
MEMORY ERASE SIGNAL(MES) CONNECTOR I2P)
[GRY, GRYI or IGRN. GRNI
MAIN WIRE HARNESSto DASHBOARD WIRE HARNESS
24P CONNECTOR
2+3
t,

Gomponent/Wiring Locations
Index: Without Front Passenger's Airbag (some Canada Modelsl
SRS INDICATOR LIGHT (ln the gauge assembly)Troubleshooting, page 24-13Gauge assembly, section 23
DRIVER'S AIRSAGReplacement,page 24-67Disposal, page 24-70
SRS UNITGROUNO
To HORN SWITCH
SRS MAIN HARNESS
SRS UNIT{lncluding safing sensorand impact sensor)Replacement. page 24,76
To CRUISE CONTROLSET/RESUME SWITCH
oo/ \oo
To DRIVER,S AIRBAG
DASHBOARD WIRE HARNESSto SRS INDICATOR LIGHT inGAUGE ASSEMBLY5P CONNECTOR
SERVICE CHECKCONNECTOR {2P}IB8N, BLKI
SRS MAINto UNDER-DASHFUSE/RELAY BOX2P CONNECTOR
SRS MAIN HARNESSto SRS UNIT18P CONNECTOR
SRS MAIN HARNESSto MAINWIREHARNESS3P CONNECTOR
MEMORY ERASE SIGNAL(MES) CONNECTON (2P'
IGRY, GRYI o. IGRN, GRNI
MAIN WIRE HARNESSto DASHBOARD WIRE HARNESS24P CONNECTOR
24-4
DUMMY RESISTOB

Precautions/Procedu res
SRS Unit Precautions
Take extra care when painting or doing body work inthe area below the dashboard. Avoid direct exDosureof the SRS unit or wiring to heat guns, welding. orsprayang equipment.
Disconnect the airbag connector(s) before discon-necting SRS harness connectors (see page24-1|1J.
After any degree of frontal body damage, or after acollision without airbag deployment, inspect the SRSunit for physical damage. lf it is dented. cracked, ordeformed, replace it.
Be sure the SRS unit is installed securely.
Do not disassemble the SRS unit.
Store the SRS unit in a cool (less than about 104.F/40"C) and dry (less than 80% humidity, no moisture)place. Do not spill water or oil on the SRS unit, andkeep it away from dust.
During installation or replacement, be careful not tobump (impact wrench, hammer, etc.) the area aroundthe SRS unit. The airbag(s) could accidentally deptoyand cause damage or injury.
24-8
Inspection After Deployment
After a collision ln which the airbag(s) was (were)
deployed, replace the SRS unit, and inspect the following:
1. Inspect all the SRS wire harnesses. Replace. don,trepair, any damaged harnesses.
2. Inspect the cable reel for heat damage. lf there is anydamage, replace the cable reel.
3. After the vehicle is completely repaired, turn theignition switch on. lf the SRS indicator light comeson for about six seconds and then goes off. the SRSsystem is OK. lf the indicator light does not functionproperly, go to SRS Troubleshooting.

rl
Troubleshooting
t)
Self-diagnostic Procedures
The self-diagnostic function of the SRS system allows it to locate the causes of system problems and to store this informa' I
tion in memory. For easier troubleshooting, this data can be retrieved via a data link circuit l
. When you turn the ignition switch ON (ll), the SRS indicator will come on. ll it goes off after six seconds. the system is
norma l.
. lf there is an abnormality, the system locates and defines the problem, stores this information in memory, and turns
the sRS indicator light on. The data will remain in the memory even when the ignition switch is turned off or if the bat-
tery is disconnected.
o when you connect the scs service connector to the service check connector (2P), and turn the ignition switch oN (ll),
thesRsindicator|ightwi||indicatethediagnostictroub|ecode(DTC)bythenumberofb|inks.
. After reading and recording the DTC. proceed with the troubleshooting for this code'
Precauiions
.Useon|yadigita|mU|timetertocheckthesystem'|fit,snotaHondamu|timeter,makesureitsoutputisl0mA(0.01A)
or|esswhenSwitchedtothesma||estva|ueintheohmmeterrange,AtesterwithahigheroUtpUtcoulddamagethe
airbag circuit or cause accidental airbag deployment and possible injury'
r when-ever the ignition switch is oN (ll). or has been turned oFF for lessthan three minutes, be careful nottobumpthe
SRS unit; the airbags could accidentally deploy and cause damage or injuries
. Before you ,"n1ou" th" SRS main harness, disconnect the driver's airbag connector (and the front passenger's airbag
connector).
. Make sure the battery is sufficiently charged {see section 23}. lf the battery is dead or low, measuring valLles won t be
correct.
. Do not touch a tester probe to the terminals in the sRS unit or harness connectors, and do not connect the terminals
with a jumper wire. Use only the backprobe set or the special tools'
For backprobing spring-loaded lock type connectors, refer to page 24-9'
Reading the DTC
when the SRS indicator light is on, read the DTC using one of these methods:
A. Connect the Honda PGM Tester to the 16P Data Link Connector {DLC), and follow the tester's prompts lf the tester
indicatesnoDTc,DTcg-1orDTc9-2,doub|e-checkbyjumpingtheservicecheckconnectorandwatchingthesRS
indicator light (see next Page)
HONDA PGM TESTER
DATA LINK CONNECTOR Il6PI
l,
24-13

Troubleshooting
J
J
B. The SRS indicator light can also indicate the DTC by the number of blinks when the SCS service connector is connect-ed to the service check connector (2P).
1. Turn the ignition switch OFF, and wait for ten seconds. Then connect the SCS service connector to the service checkconnector (2P). lf you do not wait ten seconds, the SRS unit will not be completely reset and will not output DTCS.
SERVICE CHECKCONNECTOR {2PIIGRY, GRYI or IGRN, cRN]SCS SERVICE CONNECTOR07PAZ - (m10100
l.-zs
2. Turn the ignition switch ON (ll). The SRS indicator light comes on for about six seconds and goes off. Then it will indi,cate the DTC:- The DTC consists of a main code and a sub-code.- Including the most recent problem, up to three different malfunctions can be indicated.- In case of a continuous failure, the DTC will be indicated repeatedly (see example 1 below).- In case of an intermittent failure, the SRS indicator light will indicate the DTC one time, then it will stay on (see exam-ple 2 below).
lf both a continuous and an intermittent failure occur, both DTCS will be indicated as continuous failures.- In case the system is normal (no DTC), the SRS indicator light will stay on (see example 3).3. Read the DTC.
4. Turn the ignition switch OFF, and wait for ten seconds. Then disconnect the SCS service connector from the servicecheck connector (2P).
Examples of DTC Indications:
1. Continuous fallure, SRS Indicator Light isl
- Main @de
DTC21Mosr raenr probtsm
Intermittent failure, SRS lndicator Light is:
-lF- rM.in code ir) Sub.code (2)
DTCI2
-'l F --l FMarn code (11 Sub code t1t
DTCl1Thnd.most recenl
Lrghr srays on rn ca* ol
r --
2.
3. No
ON
sutb chek __.1penod
24-14
rmal (no failure), SRS
DTC5l
Indicator Light is:
rl
No OTC, system is norhal, rhe