1997 HONDA CR-V D connector

ldle Gontrol System
Alternator (ALT) FR Signal (cont'dl
'98 - 00 modols:
ALT CONNECTOR (C1I}5I
4P
rH] Arr Fl'l'ltwHr/REo)l3laF1
I JUMPER WIRE JUMPER+ WIRE
ECM/PCM CONNECTORS
Wire side of female terminals
ECM/PCM CONNECTOR C {31PI
Wire side of female terminals
Wire side of female terminals
ECM/PCM CONNECTOR C {31P}
": Canada
1 1-160
B (25P)
Insp€ction of ALT FR Signsl.
Check fo. a shon in th. wire {ALTF linel:1. Disconn6ct the 4P (3P)* con-nector from the ALT.2. Turn the ignition switch ON {ll).3. Measure voltage between ECM/PCM connector terminals C5and 820.Ch€ck for a sho.t in iho wirc lAlTF lino):1. Turn the ignition switch OFF.2. Disconnecl the negative bat,tery cable from the battery.3. Disconnect ECM,PCM connec-torC (31P).
4. Check for continuity betwoenbody ground and ECM/PCMconnector terminal c5.
ls there approx. 5 V7
Check the opcration of the ALT:1. Turn the ignitioo switch OFF.2. Reconnect rhe ALT 4P (3P)*connector to the ALT.3. Start the engine. Hold theengine at 3,000 rpm with noload (in Park or neutral) untilthe radiator lan comes on,then let it idle.4. Measure voltage between ECM/PCM connector terminals C5and 820.
Roprir lhort in tho wirc bstweentho ECM/PCM {Csl and the ALT.
Substitut. r known-good ECM/PCM and roch.ck. It Droscrib.dvoltage b now lvrilabls, .eplaccth. o.igin!l ECM/PCM.
Does the voltage decrease whenheadlights and rear defogger areturned on?ALT FR 3ignol is OK,
Chock lor an opon in tha wire (ALTF linel:1. Turn the ignition switch OFF.2. Disconnect the negative bat-tery cable from the battery.3. Disconnect ECM/PCM con-nector C (31P).4. Disconnect the 4P 13P)* con,nector from the ALT.5. Connect the ALT 4P {3P)* con-nector terminal No. 4 1No. 1)*to body ground with a jumper
6. Check for continuity betwe€nbody ground and ECM/PCMconnector terminal C5.
Rsprir opan wiro batw.en thoECM/PCM lcsl .nd th. ALT.ls there continuity?
AI.T F IWHT/REDI
ALT F {WHT/REDI
Wire side ot Iemale terminals
www.emanualpro.com

Starter Switch Signal
This signals the ECM/PCM when the engine is cranking.
'97 model:
A {32P}
'98 - 00 models:
Transmission in E or E position.
LGl(BBN/BLK)
PCM CONNECTORS
Wire side of female terminals
ECM/PCM CONI{ECTORS
STS (BLU/ORNI
c t31P)
NOTE:. M/T: Clutch pedal must be depressed.. A/T: Transmission in E orE position
Check for an opan ot short in the
wire (STS linel:Measure voltage between PCM
connector terminals C6 and Ag
with the ignition switch in the
start (lll) position.
lnspect the No. 31 STARTER SIG-
NAL (7.5 A)Illse in the under'dashls there battery voltage?- Reoair short in the wire be-
tween the PCM lc6l and th.No. 31 STARTER SIGNAL 17 5A) tuse ot the PGM-FI main
reray.- Reolace the No. 31 STARTERSIGNAL t7.5 Altu.e.
Starter swiich signal i3 OK.
Repair opon in the wire betweonrh6 PCM lc6l and the No 31
STARTER SIGNAL 17.5 A)fuse.
A (32P)
Wire side oI female terminals
Check tor an open or short in thewir€ (STS line):Measure voltage between ECM/
PCM connector terminals A24
and 820 with the ignition switchin the start position (lll).
Inspect the No. 31 STARTER SIGNAL (7.5 A){use in the under-dashls there battery voltage?
- Reoair shorl in the wire
betwe€n the ECM/PCM lA2,fland the No, 31 STARTER SIG-NAL t7.5 Al tu3€ ot the PGM'Fl main rclay.- Repl.c. tho No. 31 STARTERSIGNAL 17.5 Al fu3e.
Starter switch 3ignal is OK.
Repair opon in tho wire between
the ECM/PCM {A241 and the No
31 STARTER SIGNAL (7.5 A) tu3e
1 1-161
www.emanualpro.com

ldle Gontrol System
Power Steering Pressure (PSP) Switch Signal
This signals the ECM/PCM when the power steering load is high.
'97 model:
*: Do not hold the steering wheel at tulllock for more than five seconds,
Wire side of female terminals
PSP SWTTCH 2P CONNECTOR 1C135)
PSP SW (GRN)
JUMPER T_7 1 \vnRE t--f r)
GND IBLK}
Wire 3id6 of female terminals
Inspection ot PSP switch signal.
Check for an open in the wire {PSPSYV line):1. Turn the ignition switch ON (ll).2. Measure voltage betweenPCN4 connector terminals C16and A9.
Check tor an open in lhe wire (PSPSW linel:1. Turn the ignition switch OFF.2. Disconnect the PSP switch 2Pconnecror,3. Turn the ignition switch ON (ll).4. At the harness side, connectthe PSP switch 2P connectorterminals No. 1 and No. 2with a jumper wire.5, Measute voltage betweenPCM connector terminals C16and A9.
ls there less than 1.0 V?
- Ropsir open in the wi.e be-twoon the PCM lcl6l and thePSP switch.- Ropdir open in BLK wire be-tween the PSP switch andG101.
ls there less than 1.0 V?Check the operation oI lhe PSPswitch:1. Stan the engine2. Turn the steering wheelto thefull lock position*.
3. Measure voltage between PCMconnector terminals C16 andA9.
ls there battery voltage?
PSP switch signal is OK.(To page 11-163)
www.emanualpro.com

{From page 11 162)
PCM CONNECTORS
Wire side of female terminals
c t3lPl
Check for a short in the PSP
swilch:1. Turn the ignition switch OFF.2. Disconnect the 2P connectorfrom the PSP switch.3. Turn the ignition switch ON (ll).
4. lleas u re voltage betweenPCM connector terminals C16and A9.
Check tor a short in the wire (PSP
SW linol:1. Turn the ignition switch OFF.2. Disconnect PCM connector C(31P).
3. Check for continuity betweenbody ground and PCM connec-tor terminal C16.
Reoair short in the wire betwoonrhe PCM {C16) and the PSP3witch.
Substitute a known-good PCM
and rocheck. lf proscribod volt-age b now available, replace theoriginal PCM.
(cont'd)
-16311
www.emanualpro.com

ldle Control System
Power Steering Pressure (PSP) Switch Signal (cont'dl
'98 - 00 models:
*: Do not hold the steering wheel at lulllock for more than five seconds.
ECM/FCM CONNECTORS
PSP SwlTCH 2P CONNECTOR ICl35}
PSP SW IGRNI
JUMpER f-7 T \wtRE L-5 rl
GND (3LX}
Wire side of lemale terminals
Inspection of PSP swilch 3ignal.
Ch€ck tor rn opon in the wire (PSP
SW line):1. Turn the ignition switch ON {ll).2. Measure voltage betlveen ECM/PCM connector terminals 426and 820.
Chock for an open in the wire IPSPSW lin€):1. Turn the ignition switch OFF.2. Disconnect the PSP switch 2Pconnector,3. Turn the ignition switch ON (ll).4. At the wire side. connect thePSP switch 2P connector terminals No. 1 and No.2 with a
5. Measure voltage between ECM/PCM connector terminals 426and 820.
ls there less than 1.0 V?
- Ropai. open in the wire be-tweon th6 ECM/PCM (A26)
and th6 PSP .witch.- R6p.ir open in BLK wire be-tween tho PSP 3witch andG 101,
lsthere less than 1.0 V?Check the op€ration of the PSPswitch:1. Stan the engine2. Turn steering wheel to the fulllock position*.3. Measure voltage b€tween ECM/PCM connector terminals A26and 820.
ls there battery voltage?
PSP switch signal is OK.
Wire side of female terminals
11-164
(To page 11-165)
www.emanualpro.com

{From page 11 164i
Check for a short in the PSPswitch:1. Turn the ignition switch OFF.2, Disconnect the 2P connectorfrom the PSP switch.3. Turn the ignition switch ON (ll).
4. Measure voltage betlveen ECM/PCM connector terminals A26and 820.
Check lor e 3hort in the wire IPSPSW linell1. Turn the ignition switch OFF.2. Disconnect ECM/PCM con-nector A (32P).
3. Check for continuity betweenbody ground and ECM/PCMconnector terminal A26.
ReDair short in the wir€ bstweenthe ECM/PCM (A26) and the PSPswitch.
Substitute a known-good ECM/PCM and rechock. It Drescribodvoltago is now available, roplacethe origin.l ECM/PCM,
ECM/PCM CONNECTORS
A l32Pl
Wire side of female terminals
Wire side of female terminals
1 1-165
www.emanualpro.com

ldle Control System
Brake Switch Signal
This signals the ECM/PCM when the brake pedal is depressed.
('97 model)'- - - - -_- Il
PCM CONNECTORSa t32P) D ll6Pl
BKSW(GRN/WHT)
Wire side of female terminals
Insp€ction of Brak. Switch Signal.
Are the brake lights on withoutpressing the brake pedal?
Inspect the HORN, STOP {15 A)fuse in the undeFhood luse/ relaybox.Do the brake lights come on?
Reoair short in the wire be-tween th€ b.ake switch andth6 HoRN, STOP {15 A)luso,Replaco the HoRN, STOP (15
Al fuse.
Repair op6n in the wir€ be-tween the brake switch andtho HORN, STOP (15 Allus6.Inspect the brrke switch (see
aection l9l.
Check tol .n open in the wire{BXSW linel:1. Press the brake pedal.2. Measure voltage between rcMconnector terminais D5 and Agwith the brake pedal pressed.
Reprir open in the wire betweenthe PcM lD5l rnd the brakeswitch.
(To page 11-167)
1 1-166
www.emanualpro.com

(From page 11-166)
Chock for en open in the wire(BKSW line):1. Press the brake pedal.
2. Measure vohage between ECM/PCM connector terminals A32and 820 with the brake pedalpressed.
Ropair opon in tha wire bstwsonrhe ECM/PCM lA32l rnd thebrako switch.
Brake switch signd b OK.
ECM/FCM OONNECTORS
Wire side of femalo terminals
11-167
www.emanualpro.com