2000 HONDA CIVIC Electric

lgnition Switch
4.
Test
SRS components are located in this area Review the
SRS component locations. precautions. and procedures
in the SRS section {24} before performing repairs or ser-
1. i/ake sure you have the anti-theft code for the
radio, then write down the frequencies for the
radio's preset buttons ('99 - 00 models).
2. Disconnect the battery negative cable.
3. Remove the driver's dashboard lower cover and
knee bolster (see section 20).
Disconnect the 5P connector from the under dash
fuse/relay box and the 7P connector from the main
wire harness.
Check for continuity between the terminals in each
switch position according to the table.
I I :7P connector
Wire side ot female terminals
BLK/WHT {STIWHT IBAT}
7P CONNECTOR
WHT/BLK
YEL (IG2}BLK/YEL {IG1)
Wire side of female terminals
6. lf the continuity checks do not agree with the table,
replace the electrical switch.
Terminal
Position
1
(ACC)
(3)
(BAT)
5
{tG1) G2)
(1)
(sr)
o (LocK)
| (ACC)o--o
l (oN)o-o
III (START)o--o
1.
Electrical Switch RePlacement
SRS components are located in this area. Review the
SRS component locations, precautions, and procedures
in the SRS section \24) belore performing repairs or ser-
vtce.
1. Make sure you have the anti-theft code for the
radio, then write down the frequencies for the
radio's preset buttons {'99 - 00 modelsl.
2. Disconnect the battery negatlve cable.
3. Remove the driver's dashboard lower cover {see
section 20).
Disconnect the 5P connector from the under-dash
fuse/relay box and the 7P connector from the main
wire harness (see left column).
Remove the steering column covers {see section
11t.
lnsert the ignition key, and turn it to "0 {LOCK)".
Remove the two screws and the electrical switch
from the steering lock.
ELECTRICALswtTcH
8. Install in the reverse order of removal.
23-a9

-Performance Test
NOTE: Before staning the following checks. disconnect
the wire from terminal M. and make a connection as
described below using as heavy a wire as possible (prefer-
ably equivalent to the wire used for the car).
Pull-in CoilTest:
Connect the battery as shown, lf the staner pinion pops
out. it is working proPerly.
CAUTION: Do not leavo tho batterv connost€d for more
than 10 seconds.
Hold-in Coil Test:
Disconnect the battery from the M terminal' lf the pinion
does not retract, the hold-in coil is working properly.
CAUTION: Do not loavc lhe battsry connected for mot6
than 10 ssconds.
Retracting Tosi:
Disconnect the battery also from the body. lf the pinion
retracts immediately, it is working properly.
GAUTION: Do not loave the baftery conn€ctod tor more
than 10 seconds.
Startor No-load Tost:
Clamp the starter firmly in a vise.
Connect the starter to the battery as described in
the diagram below, and confirm that the motor
starts and keeps rotating.
1.
3, lf the electric current and motor speed
specifications when the battery voltage is
the starter is working ProPerly.
Specifications:
80 A or less (Electric current),2,600 rpm or more
(Motor-speed)
meet the
at 11.5 V,
23-101

Charging System
Component Location Index
UNDER.HOOD FUSE/RELAY BOX/*Has replaceable ELECTRICAL LOAD II DETECTOR (ELD) UNIT '
Troubleshooting, page 23-1 14Replacement, page 23-120Bectifier Removal, page 23,121Rectifier Test, page 23-122Rear Bearing Replacement, page 23-j24
*ELD unit: USA
CHARGING SYSTEM LIGHT(ln the gauge assembly)Test, page 23- l14
BATTERYTest, page 23-91
ALTERNATOR BELTInspection and Adjustment, page 23-t25
[]
23-112

The charging system is OK.ls the amperage 50 A or more?
Alternator/Regulator Test-4:
With the engine sPeed still at
2,000 rpm, fulltieid the alternator.
J
From previous page
CAUTION: The voltage will rise quickly when the allGrnator is flll-fielded Do not ellow
the vollage to exceed 18 V; il may damage the electrical syslem
NOTE: Attach a probe to a VAT 40 full field test lead, and insert the probe into the full field
access hole at the back of the alternator' Switch the field selector to the "A (GroLrnd)" posi
tion momentarilV, and check the amperage readlng
23-119

Description
)
The sRS is a safety device which, when used in coniunction with the seat belt, is designed to help protect the driver land
front passenger) in a frontal impact exceeding a certain set limit. The system consists of the sRS unit {including safing
sensor and impact sensor), the cable reel, the driver's airbag (and front passenger's airbag)
FRONT PASSENGEB'SAIRAAG
DRIVER'S AIRBAG
CABLE REEL
SRS UNtT
t
Operation
The main circuit in the SRS unit senses and judges the force of impact and, if necessary, ignites the inflator charge(s) lf
battery voltage is too low or power is disconnected due to the impact, the voltage regulator and the back-up power clrcult
resoectivelv will keep voltage at a constant level.
For the SRS to operate:
(1) The impact sensor must activate. and send electric signals to the mlcroprocessor'
(2) The microprocessor must compute the signals' and must send signals to the airbag inflator(s)'
{3) The inflator(s) must ignite and deploy the airbag(s)'
_"-_-l
Ir3B!#h i
!.. I
ffi,*
Self-diagnosis System
A self-diagnosis circuit is built into the SRS unit; when the ignition switch is turned ON (ll), the SRS indicator light comes
on and goes off after about six seconds if the system is operating normally
lf the liglt does not come on, or does not go off after six seconds, or if it comes on while driving, it indicates an abnormal-
ity in the system. The system must be inspected and repaired as soon as possible
For better serviceability, the memory will store the cause of the malfunctlon, and the data link circuit passes on the infor-
mation from the memory to the data link connector (DLC). This intormation can be read with the Honda PGM Tesler con-
nected to the DLC (16P).
l,
24-5

Precautions/ Procedures
)General Precautions
r Carefully inspect any SRS part before you install it Do
not install any part that shows signs of being dropped
or improperly handled' such as dents, cracks or defor-
mation:
- Airbags- Cable reel
- SRS unit
-
Use only a digital multimeter to check the system lf
it's not a Honda multimeter, make sure its output ls
1O mA (0.01 A) or less when switched to the smallest
value in the ohmmeter range. A tester with a higher
output could damage the airbag circuit or cause acci-
dental deployment and possible injury'
I Do not install used SRS parts from another vehicle
When making SRS repairs, use only new pans'
) Except when performing electrical inspections'
always disconnect both the negative cable and posl-
tive cable from the battery, and wait at least three
minutes before beginning work
r Replacement of the combination light and wiper/
washer switches and cruise control switch can be
done without removing the steering wheel:
- Combinalion light and wiper/washer switch replace
ment, see section 23
- Cruise control sevresume switch replacement' see
section 23.
. Whenever the ignition switch is ON {ll), or has been
turned OFF for less than three minutes' be careful not
to bump the SRS unit; the airbag(s) could accidental-
ly deploy and cause damage or injury'
. Whenever the airbag{s) has(have) been activated'
replace the SRS unit.l,
2+7
Airbag Handling and Storage
Do not try to disassemble the airbag assembly. lt has no
serviceable parts Once an airbag has been operated
(deployed). it cannot be repaired or reused'
For temporary storage of the airbag assembly during ser-
vice. olease observe the following precauttons:
. store the .emoved airbag assemblv with the pad sur-
face uo The driver's (and front passenger's) airbag
connecto''s'-as {have) a built.in short contact (see
page 2a-l 1
: | ..r r-+r-a k imninncrlv slorcd lace down,-""dd.r6t dtatltt-,tl could propel the unit whh enough
force lo c.usa 3a.ix! intury
AIRBAG CONNECTORS(With built in shon contact)
. Store the removed airbag assembly on a secure flat
surface away from any high heat source {exceeding
212"FI1OO"CJ and free of any oil' grease, detergent or
water.
CAUTION: lmproper handling or storage can intern'lJy
damage the airbag assembly, making it inoperativo
lf you suspect the airbag assembly has been dam€cd'
inslall a new unit. and relsr lo the Deployment/DisPG'l
olocedules for disposing ol the damaged airbag

How To Use This Manual
The next few pages describe how this manual is organized. They also
explain what kind of information the manual contains, what that
informalion means, and how to use it to troubleshoot electrical problems.
Circuit schematics break the entire electrical system into individual
systems, like the Low Fuel lndicator Light on the nelit page.
Only electrical components that work together are shown together,
so you won't be distracted by unrelated wires.
Explanations of the abbreviations and svmbols used in the schematics
begin on page [Fl. You'll need to know what they mean before you can use
a schematic effectively.

In the "OHMS" range, the DVOM will measure
resistance between two points along a circuit.
Low resistance means good continuity.
Diodes and solid-state devices in a circuit can
make a DVOM give a false reading. To check
a reading, reverse the leads, and take a
second reading. lf the readings differ, the
component is affecting lhe measurement.
Jumper Wire
Use a jumper wire to bypass an open circuit.
A iumper wire is made up ot an in-line fuse
holder connected to a set of test leads. lt
should have a five amoere fuse. Never
connect a jumper wire across a short circuit.
The direct battery short will blow the fuse.
Short Finder (Short Circuit Locater)
Short finders are available to locale shorts to
ground. The short tinder creates a pulsing
magnetic field in the shorted circuit whlch you
can follow to the location of the short. lts use
is explained on page 15.
SHORT FINDER
To ordei any test equipment shown above,
contact your local tool supplier. For a list of
suppliers and tool numbers, refer to Honda
Required Special Tools and Equipment
Service Bulletin.
How To Use This Manual
Test Equipment (cont'd)
oa
Troubleshooting Precautions
Before Troubleshooting
1. Check the main fuse and the fuse box.
2. Check the battery for damage, state of
charge, and clean and tight connections.
CAUTION:
. Do not quick-charge a battery unlers
the battery ground cable has been
disconnected, or you will damage the
alternator diodes.
. Do not attempt to crank the engine wlth
the ground cable disconnected or you
will severely damage the wiring.
While You're Working
1. Make sure connectors are clean, and have
no loose terminals or receptacles.
2. Make sure lhat connectors without wire
seals are packed with dielectric (silicone)
grease. Part Number: 08798-9001 .
Pack wllh dlelectrlc (sillcons) greass
When connecting a connector, push it until it"clicks" into place.
Do not pull on the wires when
disconnecting a connector. Pull
only on the connector houslngs.
Most circuits Include solid-state
devlces. Test the voltages In these
circuits only with a lo-megaohm or
higher impedance digital multlm6ter.
Never use a test light or analog meter
on chcuits that contain solld-state
devices. Damage to the devices
may result.
oo