dash relay box HONDA CR-V 1997 RD1-RD3 / 1.G User Guide

PGM-FI Main Relay
Description
The PGM-Fl main relav actuallv contains two individual
relays. This relay is located at the passenger side of the
cowl. One relay is energized whenever the ignition is on
which supplies the battery voltage to the ECM/PCM,
power to the fuel injectors, and power for the second
relay. The second relay is energized for two seconds
when the ignition is switched on, and when the engine
is running, to supply power to the fuel pump
PGM.FIMAIN RELAY
Belay Testing
NOTE: lf the engine starts and continues to run, the
PGM-FI main relay is OK.
1. Remove the glovebox and the passenger's dash-
board lower cover (see section 20).
2. Remove the PGM-FI main relay
3. Aftach the battery positive terminal to the No. 2 ter-
minal and the battery negative terminal to the No. 1
terminal of the PGM-Fl main relay. Then check for
continuity between the No. 5 terminal and No. 4 ter-
minal of the PGM-FI main relay
. lfthere is continuity, go on to step 3.
. lf there is nocontinuity, replacethe PGM-Fl main
relav and retest.
No.2
To lGN. 1
To GROUND
To ST. SWITCH
To ECM/PCMCONNECTORTERMINAL A16(FLR)
To BAT O
To FUEL PUMPTo ECM/PCMCONNECTORTERMINAL(411 and A24,Bl .nd Bgal(IGP)
To FUEL PUMP
98 - 00 models
Attach the batterv Dositive terminal to the No. 5 ter-
minal and the battery negative terminal to the No. 3
termjnal of the PGM-Fl main relay. Then check that
there is continuity between the No. 7 terminal and
No. 6 terminal of the PGM-FI main relay.
. lf there is continuity, go on to step 4.
. lf there is nocontinuity, replacethe PGM-Fl main
relay and retest.
Attach the batterv oositive terminal to the No.6 ter-
minal and the battery negative terminal to the No. 1
terminal of the PGM-Fl main relay. Then check that
there is continuitv between the No. 5 terminal and
No. 4 terminal of the PGM-Fl main relay.
. lf there is continuity, the PGM-Fl main relay is OK.
. lf there is nocontinuity, replacethe PGM-FI main
5.
(cont'd)
11-147
No.5 No.5
relay and retest.
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Fuel Supply System
PGM-FI Main Relay (cont'dl
Troubleshooting
lc(}21PGM.FI MAIN RELAY 7P CONNECTOR
GND
trTr]--Flq
FI,Til'I A
Y
Wire side ot female terminals
- Engine will not start.- InsDection ol PGM-FI mainrelay and relay harness,
Check fo. an open in the wireIGND linol:1. Turn the ignition switch OFF.2. Disconnect the PGM Fl mainrelay 7P connector.3. Check for continuity betweenthe PGM'FI main relay 7P con-nector terminal No. 3 and bodyground.
Repair opcn in th€ wire betweenthe PGM-FI main relav and G101.
Check tor an open or short in thewiro (BAT line):Measure voltage between thePGM'FI main relay 7P connectorterminal No. 7 and body ground.- Repai. open or short in lhewir6 belween the PGM-FImain relay and the Fl E/M (15Al fu3e.- Replace th6 FIE/M (15 Altus6in th€ under-hood fuse/.6lay
ls there baftery voltage?
Check lor an open or short in thewire (lGl line):L Turn the ignition switch ON (ll).2. Measure the voltage betweenthe PGM-FI main relay 7P connectorterminal No. 5 and bodyground.- Repair open or shorl in thewire between the FGM-FI mainrelay and the No. 13 FUELPUMP 115 A) tuse.- Replaco the No. 13 RJEL PUMP115 A) luse in the und6.-d$hfuso/ relav box.Check for an open or short in thewire {STS line):1. Turn the ignition switch to theSTART (lll) position.NOTE:. M/T: Clutch pedal must bedepressed.. A/T: Transmission in E orElposition.2. Measure the voltage betweenthe PGM-Fl main retay 7Pconnector terminal No. 2 andbody ground.- Repair open or short in thewire betwe€n the PIGM-FI m.inrclay and th€ No. 31 STARTERSlGllAL 17.5 A) tuse.- Repl.ce the No. 31 STARTERSIGNAL 17.5 Al tuse in theunder-dash tuse/relay box.('97 model: To page 11-189)('98 00models:To page 1l 190)
1 1-188
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EVAP PURGE CONTROL SOLENOID VALVE DUTY CONTROLLED AFTER
STARTING ENGINE
ENGINE COOLANT TEMPERATURE ABOVE 154"F (68'C)
Evaporative Emission (EVAP) Controls
Description:
The evaporative emission controls are designed to minimize the amount of fuel vapor escaping to the atmosphere. The
system consists of the following components:
A. Evaporative Emission (EVAPI Control Canister
An EVAP control canister is used for the temporary storage of fuel vapor until the luel vapor can be purged from the
EVAP control canister into the enqine and burned.
B. Vapor Purge ConirolSystem
EVAP control canister purging is accomplished by drawing fresh air through the EVAP control canister and into a pon
on the intake manifold. The purging vacuum is controlled by the EVAP purge control solenoid valve.
C. Fuel Tank Vapor Control System
When fuel vapor pressure in the fuel tank is higher than the set value of the EVAP two way valve, the valve opens and
regulates the flow ot fuel vapor to the EVAP control canister.
'97 model:
EVAPPURGECONTROL
VALVEFromNo. 15BLK/ /ALTERNATORYEL I sP SENSOR r7.s At(in the under-dashfuse/relay box)
VARIOUSSENSORFEESH AIF
BLK
I
FUEI- TANK
(cont'd)
11-203
INTAKE MANIFOLD
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Emission Gontrol System
Evaporative Emission (EVAP) Controls (cont'dl
'98 - 0O models:
EVAPTHREE WAYVALVE
EVAPCONTROLCANISTERVENT SHUTVALVE
'EL/BLU ._^_-:.*,".. <3|ltAIS"o[..^,
1in the under-dashtuse/relay box)
FrofiBLK/WHT < NO. 15
GRN/BLK
BLU
EVAPBYPASSSOLENOID
EVAP PURGECONTROLSoLENOtOVALVE
L LT GRN/WHT ,
RED/YEL
MANIFOLD
VARIOUSSENSOR
EVAPTWO WAYVALVEVALVE
FUEL TANK
SLK
11-204
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Troubleshooting Procedures
Checking ths Diagnostic Trouble Code (DTC)
with an O8D ll Scan tool or Honda PGM Tsster
When the PCM senses an abnormality in the input or output systems, the El ('97 - 98) or E ('99 - O0) indicator light in thegauge ass€mbly will blink. When the 16P Data Link Connector (DLC) {located under the dash on the passenger's side) is
connected to the OBD ll Scan Tool or Honda PGM Tester as shown, the scan tool or tester will indicate the Diagnostic
Trouble Code (DTC) when the ignition switch is turned ON(ll).
HONDA PGM TESTER olOBD II SCAN TOOL
lf the E or E indicator light or the MIL has been reported on, or if a driveability problem is suspected, follow this proce-
dure:
1. Connect the OBD ll Scan Tool (conforming to SAE J1978) or Honda PGM Tester to the 16P DLC. (See the OBD ll ScanTool or Honda PGM Tester user's manual for specific instructions. lf you are using the Honda PGM Tester, make sureit is set to the SAE DTC Wpe).2. Turn the ignition switch ON (ll), and observe the DTC on the screen
3. Record allfuel and emission DTCS, A,,/T DTCS, and freeze data.
4. lf there is a fuel and emissions DTC, first check the fuel and emissions system as indicated by the DTC (except for DTCP0700). DTC P0700 means there is one or more Ay'T DTC, and no Droblems were detected in the fuel and emissionscircuit of the PCM.
5. Wire down the radio station presets.
6. Reset the memory with the PGM Tester o. by removing the BACK UP fuse in the under-hood fuse/relay box for morethan 10 seconds.
7. Drive the vehicle for several minutes at speeds over 30 mph (50 km/hr), and then recheck for DTCS. lf the A/T DTCreturns, 9o to the Symptom-to Component Chart on pages 14-60 and 14-61 for the '97 models, and pages 14-62 and14-63 for '98 - 00 models. lf the OTC does not return, there was an intermittent problem within the circuit. Make sureall pins and terminals in the circuit are tight, and then go to step 8.8. Reset the radio Dreset stations, and set the clock.
DATA LINK CONNECTOR {16PI
[ -=.r,
ili,i /i,
v,., i
14-56
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Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchart - Lock-up Control Solenoid Valve B (cont,d)
From page 14 96
PCM CONNECTORSVB SOL (BLK/YEL}
LG1 (BBN/8LKI LG2 (BRN/BLKI
Wire side of Iomale terminals
Measuro VB SOL Voltago:1. Turn the ignition switch ON llt).2. Measure the voltage betlveenthe D5 and 820 or 822 terminals,
Check tor blown No. t5 (7.5 Alfuse in the underdash fu36/.elaybox. lf th6 fuse is OK, ..pair openin the wire betwooo tho D5 t.rmi-nel and thg underdash two/relayItox.
ls there battery voltage?
Check for loose terminal lit in thePCM connectors. ll n€ces3a.y,substitute a known-good pCM
and .€check.
A l32P)
14-98
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Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Shift Control Solenoid Valve A (cont'd)
From page 14-106
Wire side of female terminals
Moasure VB SOL Voftago:1. Turn the ignition switch ONflr).2. Measure the voltage betweenthe D5 and 820 or 822 termi-nals,
Check lor blown No. 15 (7.5 Alfuse in the under-dash fuse/relaybox. lf the tuse is OK, repair openin the wi.e between the D5 ter-minal and the under-dash fuse/relay box.
ls there battery vohage?
Check for loose terminalfit in thePCM connectors. lf necessary,subltitute a known-good PCMand recheck.
VB SOL IBLK/YEL)
14-108
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ElectricalTroubleshooting ('98 - 00 Models)
Troubleshooting Flowchaft - Linear Solenoid (cont'dl
Wire side of female terminals
LG2 {BRN/BLKI
From page 14-117
Measure Linea. Solenoid Resis-tance:1. Connect the linear solenoidconnector,2. Measure the resistancebetween the 88 and 817 termrnals,
Repair loose torminal oi open inthe wires between rhe 88 and817 terminals and the linearsolenoid.
ls the resistance about 5 O?
Measure VB SOL Voltago:1. Turn the ignition switch OFF.2. Disconnect the D 116P) con-nector trom the PCM.3. Turn the ignition switch ON (ll).4. Measure the voltage betweenthe D5 and 920 ot B22 tetmi-nals.
Check for blown No. 15 17.5 Alfuse in the under-da3h tus€/relaybox. lI the fuse is OK, rap.ir openin the wire betwe€n the D5 ter-minal and th€ under-dash tuso/relav box.
ls there baftery voltsge?
Check LG Wire for.n OpenCircuit:1. Turn the ignition switch OFF.2. Check for continuity betweenthe 820 terminal and bodyground, and between the 822terminal and body ground.
Repair op6n in the wirosbetwe€n the 820 and 822 termi-nals and body ground, and repairpoor g.ound iG101).
ls there continuity?
Chack tor loose terminel fit in thePCM connecto13. It nocosaary,substitute a known-good PCM.nd recheck,
a t32Plc t3lPl
LSP (REO)
a l32Pl
A (32P1
LGl IBRN/BLK}
B l2sP)c 13lPlD l16P)
14-118
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Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Lock-up Control System (cont'd)
From page 14-119
Replace the Lock-up ControlSolenoid Valve A/B Assomblyand Recheck:1. Replace the lock-up controlsolenoid valve A,/B assembly(see page 14-!35).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)fuse in the undeFdash fuse/relay box for more than 10seconds.3. Using the scan tool, check tobe sure that the engine coolanttemperature is 176"F {80'C) orabove.4. Drive the vehicle at 55 mph(88 km/h) constantly tor morethan one minute.5. Recheck {or code P0740 (40i.
Does the OBD ll scan tool indicatecode P0740 or does the [9i] or Eindicator light indicate code 40?The system is OK at this time.
14-120
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Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchaft - Interlock System - Shift Lock System {cont'dl
INTERLOCK CONTROLUNTT CONNECTOR ISPI
SHIFT LOCK IYEL/BLX
SHIFT LOCK tCONNECTOR
{YEL/BLKI
123
1678
o
LOCK SOLENOID
12
YEL/BLK
Wire side of female termtnals
SHIFT LOCK SOI.ENOIDCONNECTOR
"l z-irr-
YEL ](v)
I!
Wire side of female terminsls
NOTE: Do not connect the No. 2 terminal tothe battery positive terminal, or you willdamage the diode inside the shift rocKsolenoid.
SHIFT LOCK SOLENOIOCONNECTOR(dir.ctly on $lenoidl
Terminal side of male terminals
From page 14-127
Check Shift Lock Solenoid tor anOpen Ci.cuit:1. Disconnect the shilt locksolenoid connector,2. Check for continuity betweenthe No. 2 terminal of the shiftlock solenoid connector andthe No. 3 terminal of the interlock control unit connector,
Repair open in the wir6 betweenth€ No. 2 termin.l oI ihe inter-lock control unit and ahift locksolenoid.
ls there continuity?
Measu.e Shift Lock SolenoidVoltage:1. Turn the ignition switch ONflr).2. Measure the voltage betweenthe No. 1 terminal and bodyground.
Check lor blown No.25 {7.5 Alfuse in the underdash fuse/relaybox. It the tuse i3 OK, repair oponor short in lhe wire betw€en theNo. 1 terminal of tho shift locksolenoid connector rnd theunder-dash fuso/r€lay box,
ls there battery voltage?
Check Shift Lock SolenoidOperrtion:1. Connect the No. 1 terminal ofthe shitt lock solenoid connector to the battery positiveterminal, and connect the No,2 terminal to the battery neg,ative terminal.2. Check that the shift locksolenoid operates.
Does the shift lock solenoidoperate properly?Roplace the shift lock solenoid.
Check tor looso torminal tit in th6interlock control unit connector.lf necessary, substitute a known-good int€rlock control unil andrecheck.
14-128
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