2000 HONDA CIVIC charging

l'f .
Electrical
Special Toofs .,....................,23-2
Troubleshooting
Tips and Precautions ..............,.................... . 23-3
Five-step Troubleshooting .............. ......... . . 23-5
wire color codes ..........,23-5
Schematic Symbols ........,................... . . .. .... 23-6
Relay and Control Unit Locations
Engine Compartment ...,..................... ... .. . 23'7
Dashboard ......................23-8
Dashboard/Door ......... 23-12*Airbags ................. ....... Section 24
Air Conditioning ......... Section 21
Aftelnator ..........."""" """ 23-112
Anti-lock Brake System {ABS) Section 19*A/T Gear Position Indicator .....................,. .... ... 23-149
Automatic Transmission Svstem .... . ....... Section 14
Batterv ......... . . . ... ...... .......23-91
Blower controls .. . ... Section 2l
Charging System ....'...........23'112
Connector ldentilication and Wire Harness
Routing .................. ......23'13
Cruise Control ............,........23-240
Dash Lights Brightness Controller ............. ....... 23-180
Fan controfs "" 23'126
Fuel PumD ........ . ........ section 11
Fuses/Refay ...............,..,,.. 23'62
PGM-FI Control System ......................,....... Section 1 1
*Gauges
Circuit Diagram ....,.,.......23-131
Fuef Gauge ...........'.'.......23-142
Gauge/lndicator .. . .. 23-129
Ground Distribution .. . 23-75
Heatei controls .. . ..... Section 21*Horn................. ...............23-196
*tgnition Switch ....................23-89
lgnition System .......,.... 23-102
*lntegrated Control Unit ....................................... 23-156
fnterlock System ,........ . . , ,23-144
Lighting System . . . .. ......... 23-161
Lights, Exterior
Back-up Lights ..'............23'171
Brake Lights .................. 23'174
Daytime Bunning Lights (Canadal ............... 23'166
Front Parking Lights ......,................ .'. .......... 23-167
Front Turn Signal Lights .......... . . ............ ..,.23-167
Headtights ....".'....-... ..... 23'167
High Mount Brake Light ...................... ... .23'179
License Plate Lights ...... 23'176
Taitfights ................ .......23'171
lnterior Lights ..-.......,, . 23-142
Moonroof ..,.................,........ 23-235
Power Distribution ....... . . .23-61
Power Door Locks .......,,,. .23'251
Power Mirrors ,..............,.,...23'206
Power Relays ....... . ...... . . .. 23-86
Power Windows ............,,....23-220
Rear Window Defogger .......................... . . ... . . 23-2OO
Spark Plugs . ..... . ........ .....23-111
Slarting System ................23-93*stereo Sound Svstem ,................. ..... ... . ... ,.,.,,23'147'Supplemental Restraint System (SRS) ... . Section 24
Turn Signal/Hazard Flasher System .......'.'....-... 23-173
*Undel-dash Fuse/Relay Box ............,.................. 23-85
vehicfe soeed sensor (VSSI """" ""' 23-140+Wipers/Washers .........,.,.,...23-214
NOTE: Unless otherwise specified, references to auto-
matic transmission (Mf) in this section include the CVT.

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

Circuit Diagram
IJNDER HOOD FUSEi RELAY BOX
-
BATTERY
LGNlTIONSWITCH
I
,'-F\I BAT I Gl /
\l_/
I
GRN/RED
I
N0.41 (80A) ,-a No 42 (40A)
ECM/PCM
f7
IWHT/RED
CHARGINGSYSTEMLIGHTI
TWHTi BLU
1323-1
ALTERNATOF

Charging System
Troubleshooting
lf the charging system light does not come onthe order listed below:
1. Baftery (see page 23-91)
2. Charging system light
3. Voltage
4. Alternator control system (USA)
5. Alternator/regulator
Charging Systom Light Test
or does not go off, or the battery is dead or low, test the following items in
ALTERNATOR 4P CONNECTORIUSA)
Wire side offemale terminals
IG(8LK/YEL}
ALTERNATOR 3P CONNECTORlC.nadal
Wre side oftemale terminals
[ ]: Canada
23-114
Charging Svstem Light Check-l :lvlake sure the charging systemlight comes on.
Check for a blown No. 15 t7.5 A)fuso .nd a blown charging sys-tom light bulb. ll the fuse .ndbulb .re OK, ropair the open inth6 WHT/BLU wi16.
Does the charging systemlight come on?
Charging System Light Chec*-2:Start the enoine.
Does the charging systemlight go off?
Volta96 ChecklMeaslre the voltage at the No. 1lNo. 2l terminal of the 4P [3Plcon-nector with the ignition switch ONflr).
R6p.ir the op6n in the BLK/YELwire b€twsen tho altornator andund€r-dash tuso/.glay box.
ls there battery voltage?

-
Wire side offemale terminals
LtwHT/8LUl
ALTERNATOR 3P CONNECTOR
lCanada)
Wire side oftemale terminals
LIWHT/BLUI
L
{W}IT/BLU)
.+1lr l2l
l3T.l-l-
ir/
(WHT/BLUI
(cont'd)
23-115
{From previous page)
Check tor an open in tho L cir'
cuit-1:1. Turn the ignition switch OFF
2. Disconnect the 4P [3Pl con-
nector from the alternator.
3. Ground the No. 3 terminal of
the 4P l3Plconnector.4. Turn the ignition switch ON (ll)
Turn the ignition swhch OFF, and
rep.ir tho open in tho wHT/
BLU wire.
Does the charging system
light come on?
Check for an open in the L cir-
cuit-2:Disconnect the No 3 terminal o{
the 4P [3PI connector from theground.
Does the charging system
light go off.r
Turn lhe ignition 3whch OFF, and
.epair the 3hort to gtound in the
wHT/Bl-U wire.
ALTERNATOR 4P CONNECTOR(USAI
r?-rl1l2l
FFI
]--
I
I l: canada

Charging System
Troubleshooting (cont'd)
Alternator Control System Test (USA): ,96 - 98 modets, ,99 _ 00 Dl6y5 (M/Tl engine
NorE: Before testing. check proper operation of the ELD by confirming with the MrL {see section r 1).
BATTERY
CAUTION: Be 3ure to use a voltmot€.with its plus terminal connected to b.t-tery plus and its minus terminal to the{P connectoi tgmrinal No. 2.c
{WHT/GRNt
Wire side oIfemale terminals
ALTERNATOR.P CONNECTOB
Check for a 3hort in the circuitIALTC linel:1. Reconnect the 4P connectorto the alternator,2. Stan the engine, and turn theheadlights {high beam) ON.3. Measure voltage between the4P connector terminal No. 2and the positive terminal ofthe battery.
ls there 1V or less?
Check for rn opon in tha wire(ALTC linol:1. Turn the headlight and igni-tion switch OFF.2. Disconnect the 32P connectortrom the ECM/PCN4.3. Check tor continuity betweenthe ECM/PCM 32P connectorterminal No. 19 and alternator4P connector terminal No. 2.
Bspair open in thg wire lrstweenthe rhern.tor .nd ECM/PCM.
Check for short in the wire (ALTClinel:1. Turn the headlight and ignition switch OFF.2. Disconnect the 32P connectortrom the ECM/PCM.3. Check tor continuity betweenthe ECM/PCM 32P connectorterminal No. 19 and bodyground.
Subslitute a known-good ECM/PCM, .nd .och6ck.It p.escribod vohago i! now avail-able, replace the original ECM/PCM.
Ropair 3hort in the wiro betweonthe ahe.nator and ECM/PCM.
ECM/PCM CONNECTOR A I32PI
'Ia18I1011
121314151718t9
7
202'l2221
262730
Wire side offemale terminalsALTC(WHT/GRNI
c{WHT/GRNI
ALTERNATORWire side oIfemale terminals
([l
T
12
1
ECM/PCM CONNECTOB A (32PI
I23478910t1
1213 14151617182021222321
262730
Wire side of I AITCfemate terminats
A
(WHT/GRN|
23-116

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

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