25p connector HONDA CR-V 1998 RD1-RD3 / 1.G User Guide

PCM Terminal Voltage/Measuring Conditions
A/T Control System -'98 - 00 Models
The PCM terminal voltage and measuring conditions are shown for the connector terminals that are related to the A"/T con-
trol system. The other PCM terminal voltage and measuring conditions are described in section 11.
FCM Connector Terminal Localions
NOTE: 819 and C3 terminalsare applied to'99 - 00 models.
o (16Pt
T6rminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
A5CRSDownshift signal input from
cruise control unit
When cruise control is used; Pulsing signal
A10scsTiming and adjustment service
check signal (5 V from PCM)
With ignition switch ON (ll) and service check
connector open:5 V
With ignition switch ON (ll) and service check
connector jumped with special tool: 0 V
A14('98 model)
D4 INDD4 indicator light control
{Voltage from PCM turns D4 light
oN)
When ignition switch is first turned ON (ll):
Battery voltage for two seconds
In E position: Battery voltage
A14
('99 - 00 models)
D INDD indicator light control(Voltage from PCM turns D light
oN)
When ignition switch is first turned ON (ll):
Baftery voltage for two seconds
ln E position: Battery voltage
428ILUInterlock control(Voltage from PCM)
When ignition switch ON {ll), brake pedal
depressed, and accelerator pedal released:
Battery voltage
A.32STOP SWBrake switch signal inputBrake pedal pressed; Battery voltage
Brake pedal released: 0 V
FCM CONNECTOR B I25P}
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
B1IGPlPower supply circuit from main
relay via under-hood Fuse 44
With ignition switch ON {ll): Battery voltage
With ignition switch OFF: 0 V
82PG1Ground (G101)
B8LSMLinear solenoid power supply
negative electrode
IG P2Power supply circuit from main
relay
With ignition switch ON (ll): Baftery voltage
With ignition switch OFF: 0 V
810PG2Ground (G101)
B17Linear solenoid power supply
positive electrode
With ignition switch ON (ll): Pulsing signal
819
('99 - 00 models)
O/D INDOver-Drive (O/D) OFF indicator
light control
When ignition switch is first turned ON (ll):
0 V for two seconds
O/D OFF indicator light ON:0 V
O/D OFF indicator light OFF: Battery voltage
s20Ground (G101)
B21VBUBack-up power supply(under-hood Fuse 47)
Always battery voltage
B22LG2Ground (G101)
14-54
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Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve B
Possible Causo
. Disconnocted lock-up controlsol€noid valve A/B assembly
. Short or op€n in lock-up control3olenoid vrlve B wi.e. Faulty lock-up control solenoidvalve B
Wire side of female terminals
PCM CONNECTORS
. OBO ll Scan Tool indicates CodeP1758.. Self-diagnosis pr- indicator lightblink3 twice.
Check and record the {reeze datajn case it is needed later for prob,lem verification.
The system is OK at this time.Verify thet dll connectors in thecircuit are making good contact.
Did the code return?
Check tor a Short to Powerl1. Turn the ignition switch OFF.2. Disconnect the A (32P) and B(25P) connectors from thePCM.3. Turn the ignition switch ON {ll).4. Measure the voltage betweenthe 84 and Ag ot A22 tetminals,
Repair short to power in tho wirebstween the 84 terminal and thelock-up control rolenoid valve B.
Measure Lock-up Control Sole-noid Valve B Resistance:1. Turn the ignition switch OFF.2. Measure the resistancebetween the 84 and Ag orA22 terminals.
Check tor loose terminal tit in thePCM connectors, It necessary,subslitute a known-good sole-noid valve assembly o. PCM andrech€ck.
ls the resistance 12 25 O?
To page 14-67
14-66
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Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - Shift Control Solenoid Valve B
Po33ibla Crusa
. Disconnec{ed shift cont.ol solenoidvalve A/B dssombly connector. Short or open in shift conlrol sole-noid valvg B wire' Faultv shift comrol 3olenoid valvo B
lf the Honda PGMT€ster is available:
PCM CONNECTORS
Wire side ot female terminals
. OBO ll Scan Toot indicrt8 CodoP0758.. Setf-diagnGis E indicator lightblinks oight tim93.
Check and r€cord the lreere datain case it is needed later for prob
lem verilication.
Test solenoid valve B with theHonda PGM Tester in the FLrnction test mode.
The 3olonoid is OK at this time.Verifv that all connoctors in thecircuit are making good contlct.Did the solenoid Dass the test?
Chock tor a Sho.t to Power:1. Turn the ignition switch OFF.2. Disconnect the A (32P) and B{25P) connectors Irom the PCM.3. Turn the ignition switch ON (ll).
4. Measuro the voltage botveenthe 811 and Ag or A22 termi-nats.
R.p.ir 3hort to power in the wirebotwo€n the 811 iormin.l andtho shift control sol.noid valve B.
M.6sure Shift Control SolonoidValve B Reaistanco:1. Turn the ignition switch OFF.2. Measure the r€sistancebetween the 811 and A9 orA22 terminals.
Checl lor loosc terminal fil in thePCM connactors. It nocessarv,substitute a known-good aole-noid vllvo asssmbly or PCM andr6chsck,
ls the resistance 12 - 25 O?
To page 14-75
14-74
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Ch€ck CounteGh!ft Spocd Sonsoifor a Short Cirruit:1. Disconnect the B 125P) con'nector lrom the PCM.2. Check for continuity botweenthe body ground and the B23terminal and 822 term ina Iindividually.
Repair short in tho wirgs b€twoentho 823 ,nd 822 te.minals andthc countaBhaft sp€€d senso..
Mersuro Countorrhrtt Spoed Son-sor qrcuit tor an Open:'1. Connect the countershaftspeed sensor 2P connector,2, Measure the resistancebetween the 823 and 822 termrnals.
Rapair loor€ t.rminll or opon intho wircs betwoon tho 823 .nd822 terminrl! .nd th. countaFshaft specd san3or.
ls the resistance 400 - 600 0?
Check for loo3e terminsl fit in thePCM connecto13. It necess!ry,sub3titulg s known-good PCMand rochock.
PCM CONNECTOR B I25PI
Wire side of lemale terminals
14-77
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Electrical Troubleshooting {'97 Model)
Troubleshooting Flowchart - Mainshaft Speed Sensor
Po$ible Cau3o
. Disconnocted mainshaft speod sen-sot connectot. Short or open in mainsh.ft sp6ed
' Faulty meinshaft spoed sensor
NOTE: Code P0715115) on the PCMdoesn't always mean there's an electricalproblem in the mainshaft or counlersharlspeed sensor circuit; code P0715(15) mayalso indicate a mechanical problem in thetransmission. Check the freeze data witha Honda PGM Tester. lf the mainshaftspeed sensor rpm was 0, proceed withthis troubleshooting. lf not, the probablecause is a mechanical problom within thetransmission,
MAINSHAFT SPEEOSENSOR CONNECTOR
_E_
ItiT,ll-F=r
9t
LJ
Terminal side of male terminals
PCM CONNECTOR B {25P'
Wire side of female terminals
. OBD ll Scan Tool indic.t6 Codem715.. Self-diagnosis E indic.tor lightindicatag Code 15.
Check and record the freeze datain case it is needed later {or prob,lem verification.
Check the mainshaft and counter-shaft speed sensor installation,and checkthe sensors for damage.
Are the mainshaft and counter-shaft speed sensors installedproperly, and not damaged?Reingtall or reolace and recheck.
Meaaure MaiNhatt Spoed Sen3orR6sist!nce at the Sensor Con-necaor:1. Disconnect the 2P connectorfrom the mainshaft speed sen-sor connector.2. lreasure the resistance of themainshaft speed sensor.
ls the resistance 400 - 600 O?
Check Mainahaft Speed Sensortor a Short Circuit:1. Disconnect the B (25P) connec-tor lrom the PCM.2. Check for continuity betlveenbody ground and 815 terminaland the 814 terminal individu-
ReDair short in the wir€6 b€t reenthe 815 and 814 torminals andthe mainsh!ft sp€ed sensor.
To page l4-79
14-78
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From page 14'78
Moasuro Mrin3haft Spoed SanlorResktanco:1. Connect the mainshaft speedsensor 2P connector,2, Measure the resistancebetween the 815 and 814 ter-minals,
Run the Electricrl TroubloshootingFlowchs tor codo m72O l9l.Chock for loo3e torminal fh in thePCM conn6cto.s. It necessarY,substitute a known-good PCMand rochgck.
ls the resistance 400 - 600 O?
Check NM Wiro Continuity:1. Disconnect the 2P connectorfrom the mainshaft speed sen-sor connector.2. Check for continuity betweenthe 815 terminaland the No.2terminal of the mainshaftspeeo sensor conneoor.
Ropair open in the wir6 betw€onthe 815 terminal and the main-shaft sDood $nsoa.
Check NMSG Wire Continuity:Check for continuity between the814 terminal and the No. 1 termi-nal of the mainshaft speed sensorconnector.
R€pai. opon in the wi.o betweenthe Bltl terminal and tho main'3haft sDe€d sensoa,
Ch.ck lor loos. t6rminallit in thePCM connecto13, lf neca3sary,substitute a known-good PCMand rochock.
PCM CONNECTOR B {25P}
Wir€ side of female terminals
MAINSHAFT SPEED SENSORCONNECTOR
14-79
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Electrical Troubleshooting ('97 Modell
Troubleshooting Flowchart - Linear Solenoid
Possible Caus€
. Disconnocted linear solenoid con-
. Short or oDen in linear solenoid
. Fsultv linear solenoid
SOLENOID CONNECTOR
t-TTIt]]lt
tl I ? rl-Tr
atll
L_l
PCM CONNECTOR B I25PI
LSM {WHTI LSP {RED)
LINEAR
Terminal side ot male terminals
Wire side of lemale terminals
. OBD ll Scan Tool indicates CodeP1768.. S.lt-diagnosis E indicator lightindicat* Code 16.
Check and record the freeze datain case it is needed later for prob
lem verification.
M€ssurc Linear Solanoid Re3ist-ance ei th€ Solonoid Connoctor:1. Disconnect the 2P connectorfrom the linear solenoid con-nector,2, Measure the resistance ol thelinear solenoid.
ls the resistance about 5.0 O?
Check Linear Solenoid {or a ShortCileuit:1. Disconnect the B (25P) connector from the PCM.2. Check for continuity betweenthe body ground and the B1terminal and 82 terminal individually.
Rooair short in the wires betweenthe Bl end 82 terminek .nd thelinear solenoid.
To page 14-81
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Electrical Troubleshooting ('97 Modell
Troubleshooting Flowchart - E Indicator Light On Constantly
PCM CONNECTOR B I25PI
IGRN/8LKI
Wire side of temale terminals
The E indicator light is on con-stantly {not blinking) wheneverthe ignition switch b ON (lll.
Measure D4 IND Voltage:'1.
2.
3.4.
Turn the ignition switch OFF.Disconnect the I (25P) connec-tor lrom the PCM.Turn the ignition switch ON lll).Measure the voltage betweenthe 813 terminal and bodygrouno,
Ropair short to powor in the wirebetwean tho B13 terminal andtho gauge assembly.
Maa3ure ATP D4 Voltage:1. Turn the ignition switch OFF.2. Connect the B (25P) connectorto the PCM.3. Turn the ignition switch ON (ll).
4. Shiftto any position other than
E.5. Measure the voltage betweenthe 824 terminal and bodyground.
Test the lVT gear position switch(see page '14 139).
Check lor a short to g.ound inthe wire betwoen tho B2rl te.minal and A/T gear position switch.It wira i3 OK, substitute a known-good PCM and r€check.
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Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A
Poslible Cause
. Dbconnected lock-up control solenoid valve A/B assemblY connector. Short or open in lock-up control solenoid valve A wire. Faulty lock-up control solenoid valve A' Open in vB SOL wire
LGI|BRN/BLK) LG2IBRN/BLK)
To page 14 95
(cont'd)
14-93
A t32Pli r rriltI l,1 I I ltDrste,0n,,2. t3r B'r!51 r.
LGl IBRN/BLKI LG2 (BRN/BLKI
Wire side of female terminals
A {32P)
.OBD ll Scan Tool indicatesCode Pl753.. Self-di.gnosis E or E indica-
tor light blinks once.
lf the PGM Tester is available,retrieve the M Freeze Data, then
clear the PCM.
Test-drive the vehicle under the
same conditions the Freeze Data
lntermittent failul.. The system is
OK at this time. Check the fit of
the Din3 in all connectors affected
by thb code.
Did the code return?
Check for a Short to Power:'1. Turn the ignition switch OFF.
2. Disconnect the B (25P) and D(16P) connectors trom thePCM,3. Turn the ignition switch ON (ll).
4. Measlre the voltage betweenthe D1 and 820 or 822 termi-nals,
n€pair short lo power in the wire
betw€€n the Dl terminal and the
lock-up control solenoid valve A
Mg.sure Lock-up Control SolenoidValve A Rssistance:1. Turn the ignition switch OFF.2. M easu re the resistancebetween the D1 and 820 or822 terminals.
ls the resistance 12 - 25 o?
To page 14-94
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Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A (cont'dl
FCM CONNECTORS
B {25P} C t31Pl
Wire side ot female terminals
LGlIARN/ALKI LG2IBRN/BLKI
LOCK-UP CONTROL SOLENOIDVALVE A/B ASSEMBLY CONNECTOR
tFttl._T=
A LC A (YELI(o)Y
I
Terminal side of male terminals
From page 14-93
Check tor continuity between theB20 terminal and body ground,and between the 822 terminaland body ground.
Ropair open in the wire3b€tweon tha 820 and 822 termi-nals and ground lG101l.
Ch6ck Lock-up Control SolonoidValv6 A tor a Short Ci.cuit:'1. Disconnect the 2P connectorfrom the lock up controlsolenoid valve A/B assembly.2. Check for continuity betweenthe Dt and B2O or 822 te(minals.
Ropai. lhort to g.ound in the wireb€twe€n the Dl terminal and thelock-up control solonoid vslvg A.
Mersurg Lock-up Co|ttrol SolonoidValvo A Rolktanco at tho SolonoidConnoctor:Measure the resistanco betweenthe No. 2 terminal of the lock,upcontrol soleno;d valve A/Bassembly connector aod bodyground.
Replace the lock-up controlsolonoid vrlve A/B a$ambly,ls the resistance 12 - 25 0?
Chsck for open in th€ wircbctwe€n tho Dl terminal lnd th6lock-up cont.ol solonoid v.lve A.
a t32P)D l16Pl
a l32Plc t3lPl
14-94
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