Line HONDA CR-V 1999 RD1-RD3 / 1.G Service Manual

Powertrain Control Module (PCM) -'97 Model (cont'dl
(From page 11 83)
Check for a short in the wire (MlL
line):1. Turn the ignition switch OFF.2. Disconnect the PCM connectorA {32P).3. Turn the ignition switch ON (ll).
Repair short to body ground inthe wire between the PCM {418}and MlL.ls the MIL ON?
Substitute a known-good PCMand recheck. lf symptom/indica-tion goes away. replace the origi-nal PCM.
Inspect Fl E/M (15 A) fuse in theundeFhood fuse/relay box.
- Reoair shod in the wirebetween Fl E/M {15 A} fuseand PGM-FI main relav.- Replace FIE/M 115 A)fuse.
Inspect No. 13 FUEL PUMP (15 Aifuse in the underdash fuse/relay
- Repair short in lh€ wirebolween No. 13 FUEL PUMP
115 A) Iuse and PGM-FI main
- Replace No. 13 FUEL PUMP
115 A) fuse.
Check loJ a short in a sensor:1. Turn the ignit;on switch ON (ll).
2. Disconnect the 3P connectorof each sensor one at time:. MAP sensor
(To page 11-85)
11-84
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(From page 11-84)
Reolace the Sensor that causedthe lighl lo go out.Does the MIL go off.,
Check for a short in the wires
lvCC linesl:1. Turn the ignition switch oFF.2. Disconnect the PCM connector D (16P).
3. Check for continuity betweenbody ground and PCM connector terminals D4 and Dl0 individually.
Repair shorl lo body ground
in the wile between the PCM
{D4} and the MAP sensor.Repair short to body ground inth€ wire between the PCMlol0l and the TP sensor.
Check tor an open in the wires
llGP line3l:1. Disconnect the fuel injectorconnectors and IAC valve con
2. Turn the ignition switch ON (lli.
3. [,4easure voltage betweenbody ground and PCM con'nector terminals A'11 and A24individually.- Repair open in the wire(slboiween the PCM 1A11, A24)and the PGM-Fl main relav.- Ch€ck lor poor connectionsor loose wires at ihe PGM-FImain relay.- Tesi lhe PGM-FI main relav
{see p.g6 1l-1871.Check for an open in the wires
{LG linesl:1. Turn the ignition switch OFF.2, Reconnect all sensor connec-tors,3. Reconnect the PCM connectorD (16P).
4. Turn the ignition switch ON (ll).
5, M easu re voltage betweenbody ground and PCM connector terminals Ag a^d 422individually.
R6pair open in the wire{slbetween the PCM {A9. A22l andG101 {located at the thetmostathousing) that had more than 1.0 V.
ls there less than 1.0 V?
Substituto a known-good PCMand rech€ck. It symptom/indica-tion goos away, replace the origi-nal PCM.
PCM CONNECTOR D (16PI
VCCl NEL/RED}
Wire side of female terminals
PCM CONNECTOR A (32PI
Wire side of lemale terminals
1 1-85
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PGM-FI System
Tho Maltunction Indicator Lamo(MlL) n6Yor como3 on leven lortwo laconds) rft6r tho ignhion isturnod ON {lll.
Turn th6 ignition switch ON (ll).
- Repair lhort or opcn in thowire between the No. 25METER 17.5 Al fu3e snd thegauge assembly.- Repl.co the No. 25 METER17.5 Al fus€.
ls the low oil pressure light on?
Try to start the engine.
Chock for an opsn in th€ wiro orbulb {MlL line,:1. Turn the ignition switch OFF.2. Connect the ECM/PCM con-nector terminal A18 to bodyground with a iumper wire.3. Turn the ignition switch ON (ll).
Rep.ir open in the wi.osbotween the ECM/FCM lA18land the gaugo rasombly.Roplece the MIL bulb.
ls th6 MIL on?
Substitute a known-good ECM/PCM and rochock. lf rymptom/indication goes eway, replacetho o gind ECM/PCM.
Turn the ignition switch OFF.Inspect the Fl E/M 115 A) tusein the undeFhood fuse/relaybox.
- Repair short in the wirebetween lhe Fl E/M (15 AlfusG and the PGM-Fl m.in.slay.- Roplsce th€ Fl E/M (15 Alfu3€.
Inspect the No. 13 FUEL PUMP(15 A) fuse in the under-dashfuse/relay box.
- Repair short in th6 wirebetween tho No. 13 FUELPUMP 115 A) luse and thePGM-FI main .elay.- ReDlace tho No. 13 FUELPUMP 115 Al tuse.
Engine Gontrol Module/Powertrain Control Module (ECM/PCM) -'98 - 00 Models
NOTE:. lf this symptom is intermittent, check tor:- A loose Fl E/M {15 A) fuse in the under-hood fuse/relay box- A loose No. 25 METER {7.5 A) fuse in the under-dash fuse/relay box- A loose No. 13 FUEL PUMP (15 Alfuse in the underdash fuse/rolay box- An intermiftent short in the wire between the ECM/PCM (A18) and the gauge assem-
- An int€rmiftent short in the wire between the ECM/PCM (C19) and the MAP sensor- An intermiftent short in the wire between rhe ECM/PCM (C28), the TP sensor, theEGR valve lift sensor and/or {uel tank Dressure sensor- A laulty PGM-FI main relay
ECM/PCM CONNECTOR A (32P}
Wire side of female terminals
(To page 11-871
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PGM-FI System
Engine Control Module/Poweftrain Control Module (ECM/PCM) -'98 - 00 Models (cont'dl
NOTE:. When there is no Diagnostic Trouble Code IDTC) stored, the MIL will stay on iI the SCSservice connector is connected and the ignition switch is ON (ll).. lf this symptom is intermittent, check for:- An intermittent short in the wire between the ECM/PCM (A10) and the service checkconnoctor- An intermittent short in the wire between the ECM/PCM (At8l and the gaugeassemDty. See the OgD ll scan tool or Honda PGM Tester user's manuals for specific operatingrnstructions.
ECM/FCM CONNECTOF A {32P)
Wire side of femsle t6rminals
The Malfunction lndicator LamolMlll 3lays on or comes on aftertwo 3econds.
Check the Dirgnostic TroubloCod€ (DTCI:'1. Connect a scan tool or HondaPGM Tester.2. Turn the ignition switch ON (ll).3. Read the DTC with the scantool or Honda PGM Tester.
Go to troublGhooting procadura.(3€c prg€ l lS0l
check tho DTc by MIL indication:1. Turn the ignition switch OFF.2. Connect the SCS service con-nector to the service checkconnector,3. Turn the ignition switch ON (ll).
Ropair op.n ol Bhort in wirob.twe.n thc ECM/FCtrl (A21)
and D.i. Link Connoctor.Go to troublo3hootlng proc€-dur6. lt o pag. 11.6lrl
Does the MIL indicate any DTC?
Try to start the engine.
Sub3titute r known"good ECM/PCM .nd roch.ck. lt .ymptom/indic.tion gooa awsy, repl.cothe origin.l ECM/PCM.
Does the engine stan?
Check tor a 3hort in the wireISCS linel:1. Turn the ignition switch OFFand turn the ignition switchoN { ).2- Measure voltage betweenbody ground and the ECM/PCi, conneclor terminal A10.
Ropria ahort to body ground intho wi.c Mwe.n tho ECM/PCMlA10l and aarvic. check connsc-tor.
lTo page 1l-89)
11-88
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Check tor a short in the wire (MlL
linel:1. Turn the ignition switch OFF.2. Disconnect the ECM/PCM connector A (32P).
3. Turn the ignition switch ON (lli.
Repair short to body ground in
the wire b€twe.n the ECM/PCM
lA18) and tho MlL.
Substituto a known-good ECM/PCM .nd recheck. lf symptom/indication goo3 .way, replaceth€ original ECM/PCM.
(From page 11-88)
1-89
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PGM-FI System
Manifold Absolute Pressure (MAPI Sensor
The scan tool indicates Diagnostic Trouble Code (DTC) POl07: A low input (high vacuum) problem in theManifold Absolute Pressure (MAP) sensor,
The MAP sensor convens manifold absolute pressure into electrical signals and inputs the ECM/pCM.
OUTPUIVOLTAGE
tvl3.s
3.0
2.5
2.O
1.5
1.0
0.5
o .5 ro- 15^ 1olin.H9) GAUGEREADIT{G
lmmHgl
3025
100 200 300 a00 5oo 6fi, 7d)
MAP SENSOR 3P CONNECTOR IC131I
vccl(YEL/RED}
Th6 MIL has b€en reoorted on.DTC P0107 is 3tored.
Problom verification:1. Turn the ignition switch ON lll).2. Check the lvlAP with the scanroot.
lrtormittem tailu.e, lystam b OKat thb timo. Check tor poor con-noctions or loosa wird at C131(MAP rensor) and rt the ECM/PCM.
ls approx. 101 kPa (760 mmHg,30 in.Hg),2.9 V indicated?
Check for an op6n in wi.o IVCC1linel:1. Turn the ignition switch OFF.2. Disconnect the MAP sensorconnector,3. Turn the ignition switch ON {ll}.4. Measure voltage between theMAP sensor connector No. 1termanal and No. 2 terminal.
Roprir op€n in the wir6 bstweentho ECM/PCM (D4, C19*l and theMAP sensor.
ls there approx. 5 V?
(To page 11-91)
11-90
Wiro side ol temale terminals
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PGM-FI System
Manifold Absolute Pressure (MAP) Sensor (cont'd)
[tn,t nn-] The scan tool indicates Diagnostic Trouble Code (DTC) P0108: A high voltage (low vacuum) problem in the|jg Manifold Absolute Pressure (MAP) sensor.
MAP SENSOR 3P CONNECTOR IC131I
Wire side of female terminals
vcclIYEL/RED}
PCM CONNECTOR D I16PI
JUMPER WIRE
sGlIGRN/WHTI
Wire side of lemale termin6ls
1
(To page 11,93)': '98 - 00 models
1-92
tcRN/wHrll IIRED/GRN|
The MIL has boen reported on.DTC m108 is slored.
Problem veritication:1. Start the engine. Hold theengine at 3,000 rpm with noload (in Park or neutral) untilthe radiator fan comes on, thenlet it idle.2. Check the MAP with the scantool.
Intermittent tailuro, system i3 OKat this time. Check tor ooor con-nections or loose wires at C131IMAP s6nsor) snd the ECM/rcM.
ls 101 kPa {760 mmHg,30 in.Hg),2.9 V or higher indicated?
Check Ior an open in the MAPsensor:1. Turn the ignition switch OFF.2. Disconnect the MAP sensor3P connector.3. lnstall a jumper wire betweenthe MAP sensor 3P connectorterminals No.3 and No.2.4. Turn the ignition switch ON {ll).5. Check the MAP with the scantool.
ls 10'l kPa (760 mmHg,30 in.Hg),2.9 V or higher indicated?
Check for an open in wire (SGlliDel:1. Remove the jumper wire.2. Measure voltage between theMAP sensor 3P connector ter-minals No. 1 and No- 2.
R6p.ir open in the wire betwoenthe ECM/PCM (D12, CTrl and theMAP sensor.
ls there approx. 5 V?
Check for an open in the wire(MAP line):1. Turn the ignition switch OFF.2. lnstall a iumper wire on thePCM connectors between D3and D12.3. Turn the ignition switch ON (ll).4. Check the MAP wirh the scantool.
Ropair opon in the wire betweenthe PCM {D3, .nd the MAP son-3('t.
ls 101 kPa 1760 mmHg, 30 in.Hg),2.9 V or higher indicated?
YES
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(From page 11-92)
Check for an open in the wire
{MAP linel:1. Turn the ignition switch OFF.
2. Install a jumPer wire on the
ECM/PCM connectors betlveen
C7 and C17.3. Turn the ignition switch ON (ll)
4. Check the MAP with the scan
tool.
Bopair op€n in the wi.es between
the ECM/PCM (c1?l and the MAP
5en30t.
ls 101 kPa (760 mmHg,30 in.Hg),
2.9 V or higher indicated?
Substitute a known'good ECM/
PCM and recheck. lf normal MAP
k indicated, replace the o.iginal
ECM/PCM,
I
(cont'd)
11-93
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PGM-FI System
Intake Air Temperature (lAT) Sensor (cont'dl
The scan tool indicates Diagnostic Trouble code (DTC) P0112: A low voltage (high temperature) problem in theIntake Air Temperature 0AT) sensor circuit.
The IAT Sensor is a temperature dependant resistor (thermistor). The resistance of tho thermistor decreases as the intakeair temperature increases as shown below.
RESISTANCE IKO)
i')
)2 /
A tAr
9) (RED/YEU
-L
-. 32 aa rorr 1?a 2ra 2aa f.el-m 0 20 rto ao i0 too l2ofcl
INTAKE AIR TEMPERATUR€
It the engine is warm, it will b€ high-er than ambient temperature.
IAT SENSOR 2P CONNCCTOR (C'33I
- The MIL has been reDoned on.- OTC m112 is stored,- Or from Probable Caus€ List.
Problem vsrification:1. Turn the ignition switch ON flt).2. Check the IAT with the scantool.
ls 302'F (150'C) or higher (orH-Limit in Honda mode ofPGM Testeri or 0 V indicated?
ls the correct ambient temper-ature indicated,,?Beploce tho IAT sensor.
Intermittent failure, system i3 OKat this time. Ch6ck for poor con-nectiona o. loose wires rt C133{lAT s€nsorl and rt th6 ECM/pCtr4.Check for a short in the IAT sen-sot:1. Disconnect the IAT sensor 2p
2. Check the IAT with the scantool.
ls 302"F {150"C) or higher {orH-Limit in Honda mode ofPGM Tester) or 0 V indicated?Raplace the lAT aensor.
Ch€ck for a short in the wir6 llAtlinel:1. Turn the ignition switch OFF.2. Disconnect the ECM/PCM con-nector {D (16P}, C (31P)').3. Check for continuity betweenthe IAT sensor 2P connector terminalNo.2 and body ground.
Repair short in the wi.o botweenth6 ECM/rcM {D8, C25*l and th6IAT 3ensor.
Substitute a known-good ECM/PCM and recheck. lf normel IATis indicaled, replace the originalECM/PCM,
*: '98 - 00 models
1 1-96
Wi16 side of femsle terminals
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The scan tool indicates Diagnostic Trouble Code (DTC) P0113: A high voltage (low temperature) problem in the
Intake Air Temperature (lAT) sensor circuit.
IAT SENSOR 2P CONNECTOR ICl33I
sG2{GRN/BIIO
JUMPEN WNE
IAT IRED/YELI
Wire side ol female terminals
YES
_!!7rqd9ll_____-
FCM CONNECTOR O IT6PI
IAT IRED/YEL)sG2IGRN/BLK}
JUMPER w|BE
Wire side of female terminals
l
(cont'd)
11-97
The MIL has been reported on.OTC P0113 is stored.
Problem v€rification:1. Turn the ignition switch ON (ll).
2. Check the IAT with the scantool,
Intermiftent failure, syatem is OKat this time. Ch.ck for Door con-nections or loose wires at c133
llAT s6nsorl and at the ECM/PCM.
ls -4'F (-20"C) or less (or L Limitin Honda mode of PGM Tester)or5 V indicated?
Check lor an open in the IAT sen-sor:1. Disconnect the IAT sensor 2Pconnector,2. Connect the IAT sensor 2P connector terminals No. 1 andNo. 2 with a ,umper wire.3. Check the intake air tempera'ture with the scan tool.
ls -4'F (-20"C) or less (or L-Limitin Honda mode oI PGM Tester)or5 V indicated?Replace the IAT sensor.
Check lor en opan in the wires
llAT, SG2 lines):1. Turn the ignition switch OFF.2. Connect PCM connector ter-minals D8 and D11 with a
3. Turn the ignition switch ON lll).4. Check the IAT with the scantool.
Rgpair open in the wires b€tweenthe PcM (D8. D11) and rhe IAT3en30r,
ls -4"F {-20"C) or Iess (or Llimitin Honda mode ot PGM Tester)or5 V indicated?
(To page 11-98)
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