fuse box HONDA INTEGRA 1998 4.G User Guide

(From page t 1'102)
Ch6ck {or an op6n in the wireIACC linel:Mo m enta rily connect the A/Cclutch relay 4P connector termi-nal No. 4 to body ground with a,umper wire several times.
ls there a clicking noise fromthe A,/C compressor clutch?
ls there a clicking noise fromthe 4,./C compressor clutch?See air conditione. insoection{s€e section 22).
Repai. op6n in the wire betwe€ntho ECM lA17l and the A/C clutch
Check tor the oparation of theA/C:1. Start the eogine.2. Turn the blower switch ON.3. Turn the !y'C switch ON.
Check lor sn open in th6 wireIACS line):Measure voltage between ECMconnector terminals C5 and A9,
Air conditioning signal i3 OK.Repafu open in the wire betweenthe ECM {C5} and th€ A/C D.es-sure switch or A/C diode.
ls voltage less than 1.0 V?
- Substitute e known-good ECM.nd .echeck. lf 3ymptom/indi-cation goes away, rcplaco th€original ECM.- 56€ the air conditionor inspcc-tion {3eo soction 221.
UNDER HOOD FUSE/RELAYBOX 9P CONNECTOR tC216)
JUMPERWIREACC {SLK/RED)Wire side of temale- terminals
A {32P)
LGl(BRN/BLKI
ECM CONNECTORS
Wire side of female terminals
c (31P)
ACS{BLU/RED}
I
'1.1-103

This signals the ECM when the brake pedal is depressed
Inspeclion ot Brake Switch Signal.
Are the brake lights on withoutdepressing the brake pedal?
lnspect the HoRN STOP (20 Aifuse in the under-hood fuse/ relaybox,Do the brake lights come on?
Repair shori in the wire b€-
tween the brake switch and
the HoRN STOP {20 Al fuse.Replace tha HORN STOP (20 AlIus€.
Repair open in the wire be-tween the brtke switch andtho HORN STOP {20 Al tuse.
Inspect the brake switch {seesection 23).Check tor an open in the wire
{BKSW line):1- Depress the brake pedal.
2. Measure voltage between ECMconnector terminals D5 and Agwith the brake pedal depressed.
Repair open io th6 wiae batweonthe EcM lDs) rnd the brakeswitch.
Brake switch signal is OK.
ldle ControlSystem
Brake SwitchSignal
L
L
A {32P}LGl{BRN/BLX}
D {16P)
Wrre side of female terminals
I

Starter Switch Signal
This signals the ECM when the engine is cranking.
NOTEI. M/T:Clutch pedal must be depressed.. A,/T: Transmission in E or E position.
Wire sida of female terminals
Check for an opon or short in thcwi.. ISTS lin.l:Measure voltage between ECMconnector terminals C6 and Agwith the ignition switch in thostart position (lll).
Inspect the No.31 STARTER SIG-NAL (7.5 Alluse in the under-dashfuse/relay box,
ls there battery voltage?
- Repair 3hort in the wire be-tween tho ECM lc6l rnd theNo. 31 STARTER SIGNAL (7.sAl tus€ or the PGM-FI mainr€lay.- Roplace the No. 31 STARTERSIGNAL 17.5 Al fuso.
Starter switch signal b OK.
Ropair open in tho wire botwaonih6 ECM {CGl and the No, 3lSTARTER SIGNAL {7.5 Al fuse.
11-105

F
I
Fuel Supply
PGM-Fl Main
System
Relay (cont'd)
\
lb
i
(From page 11 125)
- Reprir open or short in thewire between the PGM-FI mainrelay and the No. 31 STARTERSIGNAL {7.5 A} tuse.- RoDlace the No. 31 STARTERSIGNAL {7.5 A) fuse in theunder-dash luse/relav box,
Check for an open in the wire
{FLR line}:1. Turn the ignation switch OFF.2. Disconnect the ECM connector A (32P).
3. Check for continuity betweenthe PGM-FI main relay 7P con-nector terminal No. 1 and ECMconnector terminal A16-
Repair open in the wire betweenthe ECM (A161 and the PGM-FImein relay,ls there continuity?
Check for an open in the wires{lGPl, lGP2lines}:1. Reconnect the ECM connectorA (32P).
2. Reconnect the PGM-Fl mainrelay 7P connector.3. Turn the ignition switch ON {ll).4. Measure vo ltage betweenECM connector terminals A10and A11, and between A10and 424.
- Repaar open in lhe wir€ bet-ween the ECM 1A11, A24l andthe PGM-FI main relay.- Repldce the PGM-FI main relay.
ls there battery voltage?
Substitute a known-good ECMand recheck. It prescribed vohageis now available. roplace lhe o.ig-inalECM.
ls there 1.0 V or less?
Check the PGM-Fl main relaylsee page 11-124).
PGM.FI MAIN BELAY 7P CONNECTOR IC443I
FLR
FLR
Wire side of temale terminals
Check tor en open in the ECM:1. Turn the ignition switch OFF.2. Measure voltage betlveen ECMconnector termanals A16 andA10 when the ignition switchis first turned ON (ll) for two
IGRN/BLU}
o
1,2!t5i6
:cM CONNEi)TOR A I32P)
I23sl6a9to11
1215lor 17 18t920/22232a
25262l12329
PGl(8LKI
IGP 1
{YEL/BLK}
(
t356I
t5161t la192022
25a
IGP 2{YEL/BLKI
12 15 15 17 18 19 20 .r 22 23

Circuit Diagram
UNDER.HOOD FUSE/BELAY BOX
No.41 (100A1 No.47 (7.5A)
\'
WHT/BLU
423
LTGRN/BLK
I
GRNI/VHT
GRN/RED
GRN
GBN/BI"K
GRN/8LU
GRN/YET
LT GRN,M/HT
NoTE: I :To5v
T :1o 12v
14-46
\,
GAUGE ASSEMBTY
AiT GEAR POSITIONINOICATOR
To lzv lGl
rRANsMrssroN coNTRoL M.DULE rrcMr -fu
*> =
g
=.
I f- J:*
rrppr lo+rlo lru lrrpn tflt ti]t lrrezlerer
5VFEGULATOR
F- GRN/BLU
l--- GRN/YEL
l-- t"T GRN,aWHT
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Troubleshooting Procedures
Checking the Diagnostic Trouble Code (DTC)
with an OBD ll Scan Tool or th€ Honda PGM Tester
When the TCM senses an abnormality in the input or output systems, the lD,] indicator light in the gauge assembly will
blink. When the 16p Data Link Connector (DLC) (located under the dash on the passenger side) is connected to the OBD ll
Scan Tool or Honda PGM Taster as shown, the scan tool or tester will indicate the Diagnostic Trouble Code (DTC) when
the ignition switch is turned ON {ll}.
When the !r indicator light has been reported on, connect the OBD ll Scan Tool confirming to SAE J1978 or Honda PGM
Tester to the DLC (16P) behind the ashtray. Turn the ignition switch ON (ll) and observe the DTC on the screen ofthe OBD
ll Scan Tool or Honda PGM Tester. After determining the DTC, refer to the electrical system Symptom-to-Component
Chart on pages 14-54 and 14-55.
NOTE: SeetheOBDll ScanTool orHonda PGM Tester user's manual for specific instructions.
OBD-IlSCAN TOOL orHONDA PGM TESTER
Some PGM-Fl problems will also make the lol indicator light come on. After repairing the PGM-Fl system. disconnect the
BACK Up fuse (7.5 A) in the under-hood fuse/relay box for more than 10 seconds to reset the TCM memory, then recheck.
NOTE: Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get
the customer's code number, and make note of the radio presets before removing the fuse so you can reset them
uJ trr
ulu
ai
14-50L
DATA LINK CONNECTOR (16P)
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L./Checking th€ Diagnostic Trouble Codo (DTC)
with the Sowica Check Connector and Special Tool
When the TCM senses an abnormality in the input or output systems, the [D;l indicator light in the gauge assembly willblink.
When the Service Check Connector (located under the dash on the passenger side) is connected with the special tool asshown, the E1T indicator light will indicate (blink) the Diagnostic Troubte Code (DTC) when the ignition switch is turned ON{

}.
When the @ indicator light has been reported on, connect the Service Check Connector with the special toot.
GAUGE ASSEMEI.Y
Then turn ON (ll) the ignition switch and observe the E indicator light.Codes 1 through 9 are indicated by individual short blinks. Codes 1O and above are indicated by a series of long and shortblinks. One long blink equals 10 short blinks. Add the long and short blinks together to determine the code. After deter-mining the code, refer to the electrical system Symptom-to-Component Chart on pages 14-S4 and 55.
\-F;ii^r
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Se. OTCI
Soo DTC2
Long blinkShort blinb lfive timcsl
Soe DTCl5
Some PGM-FI problems will also make the E indicator light come on. After repairing the PGM-FI system, dasconnect theBACK UP fuse No. 47 (7.5 A) in the under-hood tuse/relay box for more than 1O seconds to reset the TCM memory, thenrecnecK.
NOTE; Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting(cont,d)
Short blink loncsl
\-/ \i,
14-51

TCM Reset Procodure
1. Turn the ignition switch OFF.
2. Remove the No. 47 BACK UP fuse {7.8 A) from the under-hood fuse/relay box for lO seconds to reset the TCM.
NOTE:
. Disconnecting the No, 47 BACK UP fuse also cancels the radio anti-theft code, preset stations and clock setting, Get thecustomer's code number, and make note of the rsdio presets before removing the fuse so you can reset them.o The TCM memory cannot be cleared by using the OBD ll Scan Tool or Honda pGM Tester; be sure to remove the BACKUP fuse to reset the TCM.
BACK UP (7.5 A) FUSE
J
UNDER.HOOD
FUSE/RELAY BOX
. Final Procodurs
NOTE: This procedure must be done after any trou bleshooting.
1. Turn the ignition switch OFF.
2. Reset the TCM.
3. Disconnect the OBD ll Scan Tool or Honda PGM Tester from the Data Link Connector, or remove the sDecial tool fromthe Service Check Connector.
4. Turn the ignition switch ON (ll), and set the radio presets and clock setting.
14-53

u.drrf,,
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14-55
Diagnostic
Trouble Code(DTC).
Ej
lndicator
Light
SymptomPossible CauseRefer to
Page
P1794
(131Blinks
. No specific symptom appears.. Short or open in LT GRN wire between
82 terminal and ECM. Faulty barometric pressure (BARO)
sensor
NOTE: BARO sensor is built into ECM.
't 4-7 4
P1786
(14)Blinks
. Transmission jerks hard when
shifting.
Short or open in FAS (YEL) wire
between 819 terminal and ECM
Faulty ECM
14-76
P0715
(15)Blinks
. Lock-up clutch does not engage,Disconnected mainshaft speed sensor
connector
Short or open in mainshaft speed sen-
sor wrre
Faulty mainshaft speed senso.
14-74
P0740
{ none,OFF. Lock-up clutch does not engage.Faulty lock-up control system14-80
P0730
I none,
. Fails to shift (between lst - 2nd,
2nd - 3rd, 1st - 4th. 3rd - 4th,
1st - 2nd - 3rd, 1st - 2nd - 4th,
1st - 3rd - 4th, or 2nd - 3rd - 4th
gears onry).. Fails to shift (stuck in 1st gears).
. Faulty shift control system
14-81
P0700
(none)
. Other automatic transmission problem (s)
Inspeclthe a utomatic transmission problem (s)accordingto the DTC (s)indicated with code m700.
(DTC)*: The DTCS in the parentheses are the codes the E indicator light indicates (blinks) when the service cnecK connec-tor is connected with the sDecialtool {SCS service connector).
NOTE: WhentheOBDll Scan Tool orHonda PGM Tester indicates the DTC(S) for the automatic transmission control sys-
tem, the scan tool or tester also indicates code P0700 simultaneously. Code P0700 means detection of some automatic
transmission problem on the PGM-Fl control system.
lf the self-diagnostic E indicator light does not blink. perform an inspection according to the table below.
NOTE:
. lf a custombr describes the symptom for code P1706 (6), P0725 (11) or P0715 (15), it will be necessary to recreate the
symptom by test-driving, then recheck the DTC,. Sometimes the E indicator light and the Malfunction Indicator Lamp (MlL) may come on simultaneously. lf so, check
the PGM-Fl system according to the DTC, then reset the memory by removing the BACK UP fuse in the under-dash
fuse/relay box for more than l0 seconds. Drive the vehicle for several minutes at a speed over 30 mph(50 km/h). then recheck the DTC.
. Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the
customer's code number, and make note of the radio presets before removing the fuse so you can reset them.
SymptomInspectionR€f. page
E indicator light does not come on for two seconds after ignition is
first turned on (ll).14-42
E indicator light is on constantly (not blinking) wheneverthe ignition is on {ll).14-84
Lock-up clutch does not have duty operation (ON - OFF).Check A,/C signal with Ay'C
on.14-85Lock-up clutch does not engage.
Shift lever cannot be moved from E position with the brake pedal
oeDresseo.Check brake switch signal.14-86

Electrical Troubleshootin g
Troubleshooting Flowchart - LC Control System
\.r.Poeribl. C.ua.
control
NOTE: Do not continue with this troubleshootingot any other DTCS have beeo corrected.until thg caus€s
v
t,
I
'I
14-80
Chock lor Anothor Cod6:Check whether the OBD lltool indicates another codo.
P6rform tha TroublorhootingFlowcha for tho indicrladCodolsl.R.ch.ck fof codo P0740 !ft.tt.oublo3hooting.
Does the OBD ll scan tool indi-cate another code?
Tost Line Proisurg:Measure the line pressure (see
pag6 14-98).
R.prir tho hydraulic syltcm !!n.cGsary (soc pago 1+98).ls the line prsssure within theservic€ limit?
Repl!c6 th6 Lock-up ControlSolenoid Velva As3ambly .ndRschock:1. Replace the lock-up controlsolenoid valve y'y'B assembly(see page '!4-87).
2. Turn the ignition switch OFFand reset the TCM memoryby removing the BACK UPfuse in the und€r-hood fuse/rolay box tor more than 10seconos.3. Using the OBD ll scan tool,check that the engine coolanttemperatures is 176'F (80'C)
4. Drive the vehicle at 55 mph(88 km/h) constantly lor rnorethan one mrnute,5. Recheck for code P0740.
Does the OBD ll scan tool indi-cate codo P0740?Tha iy3t6m ir OK .t thi! timc.
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