1994 HONDA INTEGRA key

Integrated Control Unit
Input Test (cont'd)
Engine Oil Pressure Indicator Flashal System:
Wire/
rWith combined washeFwipot operation
Test: Desired resultPossiblo c€use if r6rult is not obtainodNo. TelminalTsst condition
M
1Engine runningCheck for voltage to ground:
There should be battery voltage
. Faulty charging system. An oDen in the wire
YEL/RED
lgnition switch oFFCheck for continuity to gtound:
There should be continuitv.
. Faulty engine oil ptessure switch
. An oDen in the wire
lgnition switch ON (ll)Check indicator light. lf the light
does not come on, Sttach the
YEL/RED terminal to ground:
The light should come on as the
ignition switch is turned ON.
. Blown bulb. An open in the ware
Start the engine.Check for voltage to ground:
There should be battery voltage
Insufficient oil
lmproper lubrication
Faulty engine oil pressure switch
Key-in/Seat Bolt Reminder Systam:
No. WilaTest condition
NOTE: Refer to page 23-125 for the seat belt switch test.
Test: Dosired lesuhPossible causo if resuh is not obtainod
23-148'
GRN/BLU'Driver's door openCheck for continuity to ground;
There should be continuitv.
. Faulty driver's door switch
. An ooen in the wire
LT GRN/
RED
Front passenger's door
switch open
NOTE: Betore testing,
remove No. 3 (7.5 A)
tuse from the under-
dash fuse/relay box.
Check tor continuity to ground:
There should be continuitv.
. Faulty lront passenger's door switch
. An ooen in the wire
LT BLU
lgnition key inserted
into the ignition switch
Check for voltage to ground:
There should be 1 V or less.
Faulty ignition key switch
Poor ground (G201 , G401)
An ooen in the wite
RED/BLU
lgnition switch ON (ll)
and driver's seat belt
unbuckled
Check lor voltage to ground:
There should be 1 V or less.
Faulty seat belt switch
Poor ground {G551)
An open in the wire
;.rqFft,

Key-in Reminder System
lgnition Key Switch Test
NOTE: Refer to page 23-145fot a diagram of the key-
in leminder circuit, and to page 23-148 Jor the input test
ol the beeper circuit.
When the ignition key is not removed, the key-in reminder
in the integrated control unit senses ground through the
closed ignition key switch. When you open the driver's
door, the beeper circuit senses ground through the closed
door switch, With ground at the "LT BLU" and "GRN/
BLU" terminals, the beeper sounds.
1 . Remove the dashboard lower cover and knee bolster
(see page 23-70).
2. Disconnect the 7-P connector from the main wire
harness.
Check for continuity between the No. 2 and No. 4
terminals in each condition acco.ding to the table.
l.
Door Switch Test
Open the door.
Remove the screw, then pull out the door switch.
Disconnect the 1-P connector from the switch.
4. Check lor continuity between the positive terminal
and the base plate (ground) in each switch position
according to the table.
BASE PLATE
Position
TerminalPOSITIVEBASE PLATE
PUSHED {door closedl
RELEASED ldoor o!en)oo
Terminal
Condition
4
KEY INSERTED--o
KEY REMOVED
23-150

Engine Oil Pressure
Indicator System
Description
NOTE: Reter to page 23-144 tor the circuit diagram otthe engine oil pressure indicator flasher, snd to page
23-148 lor the input test of the flasher circuit.
The low engine oil pressure indicator tight works in twoways. lt will flash continuously following a momentaryloss of oil pressure, or it will go on and stay on with acomplete loss of oil pressure.
When the engine first starts, before oil Dressure risesabove 29.4 kP8 10.3 kgf/cmr, 4.3 psi), current flowsthrough the low engine oil pressure indicator light andthe oil pressure switch to ground. This tests the circuit.
Wilh the engine running, voltage is applied ro the ftash-er circuit of the integrated control unit. With normal oilpressure, the oil pressure switch is open and the low en-gine oil pressure indicator light does not operate. lf theoil pressure switch closes momentarily (more than O.5secondsl, but then opens again, terminal "yEL/RED,'will
sense ground through the switch. The integrated con-trol unit willthen provide and remove ground for th€ lowengine oil pressure indicator light through terminal"YEL/RED". The light will flash on and olf until the igni-tion switch is turned to "OFF".
lf engine oil pressure falls below 29.4 kPa (O.3 kgJ/cmr,4.3 psi) and does not increase, the oil pressure switchwillstsy closed. The low engine oilpressure indicator lightwill go on and stav on.
NOTE; Refer to page 23-122lot the engine oil pressure
switch test.
Lights-on Reminder
System
Description
Chime Test
Remove the dashboard lower cover and knee bolster
{see page 23-70).
Disconnect the 2-P connector t.om the dashboardwire hamess.
Test the chime by connecting battery power to the"A" te.minal and ground to the "B" terminal, andcycling the power on-off repestedly.
lf the chime fails to sound every time power is cy-cled, reDlace it.
NOTE: Refer to page 23-145 tor a diagram of the lights-
on reminder circuit, and to page 23-149 for the input
tests of the circuit.
When the ignition key is turned to OFF 8nd removed. withthe lights on, voltage is apptied to the reminder circuitin the integrat€d control unit. When you open the driver,sdoor, the circuit senses ground through the closed doorswitch.
With voltage at the "H" terminal, ground at the"GRN/BLU2" terminal and no voltage at the ,,F,' termi-nal, the chime sounds to remind the driver to turn oJf thelights.
CHIME
23-151

Power Door Locks
Component Location Index
1
FRONT PASSENGER'S DOOR LOCK ACTUATORTest. pago 23-239Reolacement. section 20
FRONT PASSENGER'SDOOR LOCK SWITCHfest, page 23-241
FRONT PASSENGER'S DOOR KEYCYLII{DER SWITCHTest, page 23-240
POWER OOOR LOCKCONTROL UNITfnput Tost, page 23-236
RIGHT REAR DOOR LOCK ACTUATOR lsodanlTest,
DOORKEY CYLINDER SWITCHTest. page 23-24O
DBIVER'S
DOOR
LOCK ACTUATORTest, page 23-238Roplacement, seclion 20
LOCK SWITCH'lest, page 23-241
Description
For this model, a new door lock system has been adopted to improve convenience and safety. lf the kev is insened intothe driver's door key cylinder, turned to the unlock position, and pulled out immediately thereafter, oNLy the driver.sdoor will unlock. However, if the key is kept in the unlock position tor one second or more, ALL doors wi

unlock.
23-239
LEFT REAR DOOR LOCK ACTUATOR {Sodan}Test, page 23-239
23-233

Power Door Locks
Circuit Diagram
BATTENY
@'"t
BLK
.&;
G201G401
o00R toc( KN08
VL____I
FROMTPASSENGER'SoooR t-ocKACIUATOR
@r
I uFt REAR000R LocKACTUATOR
@"
r RIGHT REAR000R LocKACTUATOR
@'
8LK
A=
G501G5o2
I
G501G5o2
UiIDER- HOOD FUSE/RELAY BOX
No.41 l100Al iJo,36l50A)
DRIVER'S OOOBKEY CYI,INDERswITcH
DRIVER'SoooR rocKswtTcH
FRONTPASSENGEN'SDOOR LOCKswncH
POWER OOORLOCK CONTROI.
8rl(
A-l
GSotG502
23-234
I

NOTE: The numbers in the table show the troubleshooting sequence.
Item io be inspected
Symptom
-9-.9)x<
St
z)
It9cdl=o'o
=3-
oo
oo
OE
;-s
.=3
o
;
c
TL
o
o
o
:
c
3
o
t
(L
c
o)
o-
9E-c
Power door lock system doesn't
ooerate at all.1G501
G502WHT/GRN
Doors don't lock or
unlock with the
driver's door lock
switch.
All doorsG501GRN/RED or
GRN^/lr'HT
One or
more doors1JWHT/RED or
YEL/RED
Doors don't lock or
unlock with the
passenger's doot
lock switch.
All doorsG201
G401
BLK/RED or
BLK/WHT
One or
more ooors1WHT/RED or
YEL/RED
Doo.s don't lock or
unlock with the
driver's door lock
knob.
All doors1G501
G502
BLU/RED or
BLU/WHT
One or
more ooors1WHT/RED or
YEL/RED
Doo. don't lock o.
unlock with the
passenger's doot
key.
All doorsG201
G401
LT GRN or
LT BLU
One or
more doors25WHT/RED or
YEL/RED
Doors don't unlock
wilh the driver's
door key.
Oriver's
ooorG501
G502
BRN, WHT/RED
or YEL/RED
'All doorsIGsol
G502
BRN, WHT/RED
or YEL/RED
Troubleshooting
+ It the system is working normally, €lldoors will unlock when you hold the door key in the unlock position (kev cvlinderswitch and door lock knob switch turned ON) for one second or more.
23-235

Disconnect the
I{o. WireTost condltlonTest: Dosirsd rosult
Reconnect tho 14-P connector to th6 powor door lock control unit.
t{o. WlroTost conditionTost: Dolir6d r6auh
14-P connector from the power door lock control unit.
Possibls cause if rosult is not obtainod
Posslblo caus6 it rosuh is not obtainod
IBLKUnder all conditionsCheck tor continuity to ground:
There should be continuitv.
. Poor ground (G501 , G502). An open in the wire
2
WHT/RED
and
YEL/RED
Connect the YEL/RED
tarminal to the WHT/
GRN terminal, and the
WHT/REO terminal to
the BLK terminsl
momentarily.
Check door lock oDeration:
All doors should unlock.
Faultv actuator
An open in the wire
Blown No. 6 (2O A) fuse in the
under-dash fuse/relav box
Connect the WHT/RED
terminal to the WHT/
GRN terminal, and the
YEL/RED terminal to
the BLK terminal
momentarilv.
Check door lock ooeration:
All doors should lock.
eWHT/GRN
Under all conditionsCheck tor voltage to ground:
There should be battsry voltage.
. Blown No. 6 {2O A) fuse in the
under-dash fuse/relay box. An open in the wire
4
GRN/WHTDriver's door lock
switch in LOCK
Check for voltagg to ground:
There should be I V or less.
Faultv driver's door lock switch
Poor ground (G501, G5O2)
An oDen in the wireGRN/REDDriver's door lock
switch in UNLOCK
I
BLK/wHTRight tront door lock
switch in LOCK
Check for voltage to ground;
There should bs 1 V or less.
Faulty front passenger's door lock
switch
Poor ground (G201, G4O 1)
An ooen in the wireBLK/REDRight lront door lock
switch in UNLOCK
6
BLUMHTDriver's door lock knob
in LOCK
Check for voltage to ground:
There should be 1 V or less.
Faulty driver's door lock actuator
Poor ground (G501, G5O2)
An ooen in the wireBLU/REDDriver's door lock
knob in UNLOCK
7BRN
Driver's door key
cylinder in UNLOCK
Check for voltage to ground:
There should be 1 V or less as
the switch is turned.
Faulty d,iver's door key cylinder
switch
Poor ground {G501, G5O2l
An open in the wire
I
LT BLUFront passenge.'s doot
key cylinder in LOCK
Check for voltage to ground:
There should be 1 V or less as
the switch is turned.
Faulty tront passenger's door
cylinde. switch
Poo. ground (G201 , G401)
An oDen in the wireLT GRNFront passenger's door
key cylinder in UNLOCK
CAUTION: To provonl damago to tho molor, rpply battory voltago only momrntadly.
23-237

Power
Driver'
Door
s Dool
Locks
Key CylinderFront Passenger's Door Key Gylindet
Switch Test
1. Remove the door Danel {see section 2O).
2. Disconnect the 3-P connector trom the switch.
FRONTPASSENGER'SDOOB KEYCYLINDERswtTcH
coN ECIOR
3. Check tor continuitv between the terminals in each
switch position according to the table.
tfil*rr
Terminal
P""ft;---lABc
LOCKo----o
OFF
UNLOCKo----o
UNLOCK
-r--O
I LOCK
Switch Test
1. Remove the door panel (see section 20).
2. Disconnect the 2-P connector from the switch.
terminal side
3. Check for continuity between the terminals in each
switch position according to the table.
Position
TerminalB
UNLOCKGo
OFF
UNLOCK<
I
23-240