Terminal NumborSignalDescriptionMeasuring Conditions/Terminal Voltage
D1LCALock-up control solenoid valve A
control
During lock-up conditions: Baftery voltage
During no lock-up condition: 0 V
D2SHBShift control solenoid valve B
control
Battery voltage in following positions:
. E, E and positions
. E, -ql, and E positions in lst and 2nd gear
0 V in following positions:
. E, E;, and E positions in 3rd gear
. E and E positions in 4th gear
. E, El, and El positions
D3LCBLock-up control solenoid valve B
control
During full lock-up conditions: Battery voltage
During half lock-up conditions; Pulsing signal
D4Not used
D5VB SOLPower supply for solenoid valves
(Under-hood Fuse 15)
With ignition switch ON (ll); Battery voltage
With ignition switch OFF: 0 V
D6ATP RAy'T gear position switch
B position input
In E position: OV
In other than E position: Baftery voltage
D7SHAShift control solenoid valve A
control
Battery voltage in following positions:
. E position
. E, E, and E positions in 2nd and 3rd gear
. E position
0 V in following positions:
. E position. E. E, and E positions in lst gear
. Erl and E positions in 4th gear
.EandEpositions
D8
{'98 model}
ATP D3Ay'T gear position switch
E position input
In E position: 0V
In other than E position: Baftery voltage
D8
('99 - 00 models)
O/D SWOver-Drive (O/D) switch signal
input
When Over-Drive {O/D) is OFF (O/D OFF
indicator light is ON): 0 V
When Over-Drive {O/D) is ON {O/D OFF
indicator light is oFF): Battery voltage
D9ATP D4A/f gear position switch
E position input
In E position: 0V
In other than E position: 5 V
D10NCCountershaft sDeed sensor inoutDepending on vehicle speed: Pulsing signal
when vehicle is stopped: Approx.0 V
Dl1NMMainshaft speed sensor inputDepending on vehicle speed: Pulsing signal
When engine is stopped: Approx. 0 V
D12NMSGMainshaft speed sensor ground
D13ATP NPA,/T gear position switch E and
El positions input
InEandEpositions: 0V
In other than E and m position: 5 V
D14AlP 2A/T gear position switch
El position input
InE position; 0V
In other than E position: Battery voltage
D15ATP 1A,/T gear position switch
E position input
InEposition:0V
ln other than El position: Battery voltage
D16NCSGCountershaft speed sensor
grouno
PCM CONNECTOR D (16P)
14-55
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ABS Control
The ABS control unit detects the wheel speed based on the wheel sensor signal it received, then it calculates the vehicle
speed based on the detected wheel speed. The control unit detects the vehicle speed during deceleration based on the
rate of deceleration.
The ABS control unit calculates the slip rate of each wheel, and it transmits the control signal to the modulator unit
solenoid valve when the slip rate is high
The pressure reduction control has three modes: pressure reducing, pressure retaining, and pressure intensi{ying modes.
Self-diagnosis Function
The ABS control unit is equipped with a main cPU and a sub cPU, that check each other for problems.
The CPUs check the circuit of the system.
When the CPUS detect failure, they shift to the "system down mode" or the "control inhibition mode".
The self-diagnosis can be classitied into these four categories:
O: Initial diagnosis
O: Except ABS control
O; During ABS control
@: During warning
On-board Diagnosis Function
The ABS system can be diagnosed with the Honda PGM Tester.
The ALB Checker cannot be used with this system. For air bleeding. and checking wheel sensor signals, use the Honda
PGIM Tester. See the Honda PGM Tester user's manuals for specific operating instructions.
(cont'd)
19-29
ABS CONTROL I-INIT
MODEABSINDICATOR LIGHTMAIN
RE LAY
SOLENOID
VALVERestan conditionDTC
SYSTEM
DOWNONNo
operatron
Drive
inhibitionOperation*rlgnition
switchOFF - oN (ll)Memory
CONTROL
INHIBITIONONNo
operaton
Drive
inhibitionOperationAutomaticlVemory
*1: Except CPU failure
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Troubleshooting
Blower Motor Speed
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
POWER TRANSISTOR 3P CONNECTOR
1
2)3
f
BLK
Wire side of female terminals
JUMPERWIRE
HEATER CONIROL PANEL 2OP CONNECTORWire side oI fgmale t€rminals
12,/1,/68I10
't112131ia't51611181920
LI GRN/BLK
o
LT GBN/BLK
Blower motol only runs on highspood position; h does not run inany othe. speod positions.
Self-diagnosis circuit check indi-cates a problem in the blowermotor circuit,
Chack lor.n open in the wire:1. Disconnect the power transis-tor 3P connector.2. Check for continuity betweenthe No.3 terminal and bodygro(1nd.
Chock for.n op.n in thc wirobotween ihe powa. transistorrnd body ground, It tho wir. is
OK, check for poor ground atG,O1 .nd G4o2.
ls there continuity?
Chsck for an opon in the wire:'1. Connect the No. 1 and No. 3t€rminals of the power tran-sistor 3P connector with ajumper ware.2. Turn the ignition switch ON {ll).
Repair op6n in the wiro betwoontho Dower transi3tol and theblowor motor.
Check tor an open in tho wire:1. Turn the ignition switch OFF.2. Disconnect the iumper wire.3. Remove the heater controlpanel (see page 22-46).4. Check for continuity botweenthe No. 20 terminal of theheater control panel 20P con-nector and the No.2 terminalof the power transistor 3Pconnectof,
R€pair opon in tho wire betwoenth6 oowor ttan3i3tor and th6hoatar control oanel.
NOTE: lf the blower motor doesrun at all, refer to page 22-16.
10 page 22-15
22-14
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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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Troubleshooting
Heater Control Panel Input/Output Signals
HEATER CONTROL PANEL CONNECTORS
8P CONNECTOR
Wire side of female terminals
2OP CONNECTOR
8P CONNECTOR
Cavitylrvire cololSignalCavityWire cololSignal
'lBLK/TE LIG2 (POWER)INPUTREDDASH LIGHTS ERIGHT-
NESS CONTROLLERCUTPUT
2GRN/REDRECIRCULATEINPUTRE D/BLK
COMBINATION LIGHT
SWITCH (Via No. 30 (7.5 A)
fuse)
INPUT
GRN/VVHTFRESHINPUT1BLKGROUNDOUTPUT
BLUI/ELREAR WINDOW
DEFOGGER RELAYCUTPUT8BLU/BLKBLOWER FEEDBACKINPUT
20P CONNECTOR
CavityWire colorSignalCavityWire colorSignal
1GRYAIR MIX POTENTIAL +5VOUTPUT'llWHT/BLUBACK PU (POWER)INPUT
2GRNEVAPORATOR TEMPERA.
TURE SENSOROUTPUT12YELMODE HEAT/DEFINPUT
13BLU/BLKMODE HEATINPUT
14GRN/YELMODE HEAT/VENTINPUT
ICYEUREDMODE VENTINPUT
6PNI(BLKAIR MIX POTENTIALINPUTtoYEUBLUMODE DEFINPUT
717RED/BLUAIR MIX COOLOUTPUI
8ORNrur'HTBLOWER MOTOR HIGH
RELAYINPUT18RE D/VE LAIR MIX HOTOUTPUI
BRNSENSOR GROUNDINPUT'19BRNA/VHTIVIODE MOTOR GROUNDINPUT
10BLU,ryVHTA"/C PRESSURE SWITCHINPUT20T GRN/BLKPOWER TRANSISTOR BASECUTPUT
22-40
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Gonnector ldentification and Wire Harness Routing
Engine Compartment Wire Harness
Connector ol
Terminal
Number of
CavitiesLocationConnects toNotes
c20'l
c202
c203
c204
c205
c206
c207
c208
c209
c210
c212
c213
c2't4
c215
c216
c217
c21A
c218
14
2
2
1'l
2
10
Left side of engine compartment
Left side of engine compartment
Behind front bumper
Behind right headlight
Behind front bumper
Behind right headlight
Left side of engine compartment
Left side of engine compartment
Left side of engine compartment
Behind left headlight
Left side of engine compartment
Behind front bumper
Behind front bumper
Right side of engine compartment
Behind right headlight
Behind right headlight
Behind right headlight
Right side of engine compartment
Right side of engine compadment
Main wire harness (C307)
Cruise actuator
Rear window washer motor
Left front turn signal/side marker lights
Windshield washer motor
Left front parking light
Condenser fan motor
Front fog lights
IVC compressor clutch
Left headlight
IVC pressure switch
Left horn
Right horn
Radiator fan motor
Right headlight
Right front turn signal/side marker
lights
Right front parking light
Main wire harness 1C357)
Main wire harness (C357)
Optional
'97 - 98
models'99 - 00
mooets
G201
G202
Right side of engine companment
Left side of engine compartment
Body ground, via engine compartment
wire harness
Body ground, via engine compartment
wire harness
23-16
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Power Distribution
Fuse-to-Gomponent(sl Index (numerical sequence)
Under-hood Fuse/Rolay Box:
41
43
44
46
47
48
49
50
52
Capacity
'100 A
40A
7.5 A
15 A
40A
7.5 A
30A
204
204
15 A
10A
40A
40A
204
20A
Capacity
40A
204
7.5 A
wiro ColorFuseCircuit(s) Prot€cted
A
lgnition switch (BAT)
lntegrated control unit
Ceiling lights
Spotlights
PGM-Fl main relay
Not used
No. 7, 8, 10, 11 fuse in the under-dash fuse/relay box
Audio unit
Clock {'98 - 00 models)
Data link connector ('98 - 00 models)
ECM (VBU) {'98 - 00 models: M/T)
Heater control panel
PCM (VBU) (A./T)
Combination light switch (via under-dash fuse/relay box)
No. 20, 33 fuse in the under-dash fuss/relay box
Not used
Rear window defogger (via relay)
Door lock control unit
Hatch glass opener solenoid
Keyless door lock control unit ('98 - 00 models)
Horn relay
Horns (via relay)
via brake switch:
ABS control unit
Brake lights
Cruise control unit
ECM ('98 - 00 models: M/T)
High mount brake iight
PCM (4./T)
Trailer lighting connector
Turn signal/hazard relay (via switch)
Option connector (+B)
No. 6 fuse in the under-dash fuse/relay box
Blower motor (via relay)
Condenser fan motor (via relay)
Ay'C compressor clutch (via relay)
Radiator fan motor (via relay)
Wire Color Circuitls) Protoct
53
54
50
WHT/BLK
WHT/RED
WHT/BLK
WHT/BLU
WHT/BLU
WHT
WHT/GRN
WHT/GRN
WHT/GRN
WHT/BLK
WHT/RED
BLU/WHT
WHT
RED
BLK/RED
Under-hood ABS Fuss/nehy Box:
Fusg
61WHT
WHT/GRN
BRN/YEL
ABS pump motor {via relay}
ABS control unit
ABS control unit
{cont'd)
23-43
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Power Distribution
Fuse
1
3
5
6
7
I
9
10
11
12
13
14
"^
RED/B LU
RED/GRN
WHT/BLK
RED/VVHT
YEUBLK
RED
GRN/BLK
BLU/BLK
YEVBLK
YEUGRN
RED
BLK/YE L
BLK/VVHT
17
7.5 A
7.5 A
BLVBLU
BLKA/EL
18
19
20
22
7.54
7.54
l0 A
10 A
YEUBLK
YEVRED
BLKAr'YHT
RED /VHT
RED/YE L
Fuse-to-Component(sl Index (numerical sequencel (cont'dl
Under-dash Fuse/Relay Box:
Capacity
10 A
10 A
10 A
10 A
20A
204
15A
204
204
7.5 A'15 A
7.5 A
7.5 A
Wire ColorCircuit{s) Protected
Not used
Not used
Rear window washer motor (via switch)
Rear window wiper control unit ('97 model)
Rear window wiper motor
Daytime running rights resister {Canada)
Right headlight {High beam}
Daytime running rights resister (Canada)
High beam indjcator light
Left headlight (High beam)
Rear accessory socket (via relay)
Left rear power window motor (via switch)
Right rear power window motor (via switch)
Distributor (ignition control module)
Front passenger's power window motor (via switch)
Driver's power window motor {via switch)
Power window master switch (power window control unit)
Turn signal/hazard relay (via switch)
PGM-FI main relay
SRS unit (VA)
Cruise control unit (via switch)
Cruise main switch indicator light
Alternator
Charging system light
ELD unit (USA)
EVAP bypass solenoid valve ('98 - 00 models)
EVAP control canister vent shut valve ('98 - 00 models)
EVAP purge control solenoid valve
Primary HO2S
Secondary H02S
VSS
ABS control unit
Option connector (lG2)
Ay'C compressor clutch relay
Blower motor high relay
Blower motor relay
Condenser fan relay
Heater control panel
Left power mirror actuators (via switch)
Mode control motor
Radiator fan relay
Recirculation control motor
Right power mirror actuators (via switch)
Daytime running lights control unit (Canada)
Back-up lights
Reverse relay (A"/T)
Daytime running lights control unit (Canada)
Right headlight (Low beam)
Left headlight (Low beam)
23-44
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