Ignition relay HONDA CR-V 1999 RD1-RD3 / 1.G Owner's Manual

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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lFrom page 11 188)
Ch6ck lor an open in the wir€
{FLR line):1. Turn the ignition switch OFF.
2. Disconnect the PCM connec-
tor A (32P).
3. Check for continuity between
the PGM-FI main relay 7P con-
nector terminal No. 1 and PCM
connector terminal A16.
Repair open in the wire be{weonthe PCM lAl6l and the PGM-FImain relay.
Check for an open in the wir€s
{lGP1, lGP2lin€s):'1. Reconnect the PCM connectorA (32P).
2. Reconnect the PGM'Fl main
relay connector.3. Turn the ignition switch ON (lli.
4. Measure voltage between PCM
connector terminals A11 and
A10, and between A24 andA10.
- Repair open in the wir€ bet'
ween th€ PCM {A11, A2ia} end
the PGM-FI main relay.- Reolsce the PGM-FI main rolaY.
ls there battery voltage?
Check tor an open in the PCM:
1. Turn the ignition switch OFF.2, Measu re voltage betweenPCM connector terminals A16
and A10 when the ignition
switch is first turned ON {ll) for
Substitute a known-good PCM
and recheck. lf ptesctibed volttgeis now available, roplaco tho orig'in.lPCM.
ls there '1.0 V or less?
Check the PGM-Fl m.in.elaV(see page 11-187).
('97 model)
IGRN/YELI
-t
PGM.FI MAIN RELAY 7P CONNECTOR (C432I
FLR
Wire side of lemale terminals
IGP2(YEL/BLK)
(cont'd)
_l
1 1-1 89
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Fuel Supply System
PGM-FI Main Relay (cont'dl
('98 - 00 models)-l
(From page 11,188)
Check lor an open in the wire(FLR line):1. Turn the ignition switch OFF.2. Disconnect the ECM/PCM connector A (32P1.3. Check for continuity betweenthe PGM-FI main relay 7P con-nector terminal No. '1 and ECM/PCM connector terminal 416.
Repaia open in the wire betweenthe EcM/PcM lAl5l .nd thePGM-FI m.in relay.
Check for an open in the wiresllcPl,lGP2linos):1. Reconnect the ECM/PCN4 con-nector I (25P).2. Reconnect the PGM Fl mainretay connector.3. Turn the ignition switch ON l).4, Measure voltage betweenECM/PCM connector terminalsB1 and 82, and between 89and 82.
Ropai. open in tho wire b6t-we€n th. ECM/PCM lBt, Btl.nd the FGM-FI main rd.y.R€plac€ th6 FGM+| main retay,
Chock for an open in the ECM/PCM:1. Turn the ignition switch OFF.2, Measure voltage betweenECM/PCM connector terminals416 and 82 when the ignitionswitch is first turned ON (tl) for
Subrtitute e known-good ECM/PCM and recheck. lf prescribsdvoltage b now ovrihble, replacothe originel ECM/PCM.
ls there 1.0 V or less?
Check the PGM-FI main.elav(s6e page 11-1871.
PGM.FI MAIN RELAY 7P CONNECTOF (C€2)
Wire sid€ of female terminals
ECM/PCM CONNECTOR B I25PI
IGP2(YEL/BLKI
ECM/PCM CONNECTORS
a t32Pl
Wire side of female terminals
Wire side of f€male terminsls
1 1-190
Dde"Jt;;liL-F-T--
PGl(BLK}
38s l1011131719202122
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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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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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PCM Reset Procedure
'1. Turn the ignition switch off
2. Remove the BACK UP fuse (7.5 A) from the under-hood fuse/relay box for 10 seconds to reset the PCM.
NOTE:
. Disconnecting the BACK Up fuse also cancels the radio preset stations and clock setting Make note of the radio
presets before removing the fuse so you can reset them
. The PCM memorv can also be cleared by using the OBD ll Scan Tool or Honda PGM Tester'
UNDER.HOODFUSE/RELAY BOX
Final Proceduro
This procedure must be done after any troubleshooting.
1. Turn the ignition switch OFF.
2. Reset the PCM.
3. Disconnect the OBD ll Scan Tool or Honda PGM Tester from the Data Link Connector (16P), or remove the special tool
from the Service Check Connector (2P).
4. Turn the ignition switch ON (ll), and set the radio presets and clock setting'
5, To verify that the problem is repaired. test-drive the vehicle for several minutes at speeds over 30 mph (48 km/h).
BACK UP IRADIO} {7.5 AI FUSE
14-59
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From page 14 82
Replace the Lock-up ControlSolenoid Valve Assembly andRecheck:1. Replace the lock-up controlsolenoid valve A/B assembly(see page 14-'135).2. Turn the ignition switch OFFand reset the PCM by remov-ing the BACK uP (7.5 A) fusein the under-hood fuse/relaybox for more than 10 seconds.3. lJsing the scan tool, check tobe sure that the engine coolanttemperature is 176"F 180'C) orabove,4. Drive the vehicle at 55 mph(88 km/h) constantly for moretnan one mrnute.5. Recheck for code P0740 (40).
Does the OBD ll scan tool indicatecode PO74O or doesthe El indicator light indicate code 40?The svstem is OK ai this time.
Replace the Linear Sol€noidA$embly and Recheck:'1. Beplace the linear solenoidassembly {see page 14-138).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)fuse in the underhood 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 for more thanone minute,5. Recheck for code P0740 {40).
Does the OBD ll scan toolindicate code P0740 or doesthe E indicator light indicate code 40?
The svsteo is OK at this tim€.
Replace the transmission andtorque convertor assembly.
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Replace Shift Control Solenoidvslve Assembly and Recheck:1. Replace the shift controlsolenoid valve A/B assembly(see page'14 136).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)fuse in the under-hood fuse/relay box for more than 10seconds.3. Drive the vehicle at over 12mph (20 km/h) in 1st,2nd,3rd,and 4th qear for more than 30seconds in E position.
4. Recheck for code P0730 (41).
Does the OBD ll scan toolindicate code P0730 or doesthe E indicator light indicate code 41?
The svstem is OK at this time.
Replace Linea. Solenoid Ass€mblyand Recheck:1. Replace the linear solenoidassembly lsee page 14-138).2. Turn the ignition switch OFFand reset the PcM memory byremoving the BACK UP 17.5 A)fuse in the underhood fuse/relay box tor more than 10 sec'onos.3. Drive the vehicle at over '12
mph {20 km/h) in 1st,2nd,3rd,and 4th geal for more than 30seconds in -Da position.
4. Recheck for code P0730 (41).
Does the OBD llscan toolindicate code P0730 or doesthe Di indicator light indi-cate code 41?
The syslem is OK at this time.
From page 14-84
14-85
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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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