1994 HONDA INTEGRA engine

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

Troubleshooting
NOTE:
a The numbers in the table show the troubleshooting sequence.
a Before troubleshooting,- check the No.15 {10 A) and *No. 24 fuses in the under-dash fuse/relay box, and the No.41 (1OO A), No.39(50 A). and No.42 (20 Al fuses in the under-hood fuse/relav box.- check that the horn sounds.
check the tachometer to see if it wo.ks pfoperly.
*No. 24 {15 A): Bl8B1 engine
No. 24 {2O A}: 818C1 engine
Item to be inspected
Symptom
-c.
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912'oE
og
Cruise control cannot be set.13
G301,
G201 ,
G401
BLU/GBN, LT GRN/RED.
BLU, BLK/YEL, LT GRN,
GRY, ORN. BRN/WHT,
BRN/BLK, BRN/RED or PNK
Cruise control can be set, but
indicator light does not go on.2G201,
G401YEL or RED/BLU
Cruise speed is noticeably higher
or lower than what was set.I3
Excessive overshootjng or
undershooting when trying to set
speed
2I
Steady speed is not held even on
a flat road with cruise control set.23
Car does not decelerate or
accelerate accordingly when SET
or RESUME button is pushed.
2LT GRN/BLK
LT GRN/RED
Set sDeed is not cancelled when
clutch Dedal is oushed (M/Tl.,1
Set sDeed is not cancelled when
shift lever is moved to fM tnnt.I2
Set speed is not cancelled when
brake pedal is pushed.'I2
Set speed is not cancelled when
main switch is pushed OFF.1
Set speed is not resumed when
RESUME button is pushed (with
main switch on, but set speed
temporarily cancelled).
LT GRN/BLK
LT GRN/RED
23-245

tlo.WlfeTost condition
*No. 24 (15 Al: 81881 engine
No.24 l2O A): 818C1 engine
Tost: Desired rosultPossibl6 caus€ it losult is not obtained
IBLKUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G201, G4011. An open in the wire
2BLKryEL
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage.
. Blown rNo. 24 fuse in the under-
dash fuse/relay box. An open in the wire
5LT GRNlgnition switch ON (ll)
and main switch ON
Check for voltage to ground:
There should be battery volt€ge.
. Faulty main switch. An open in the wire
4GRY
lgnition switch ON lll),main switch ON and
brake pedal pushed,
then released
Check for voltage to g,ound;
There should be O V with thepedal pushed and battery
voltage with the pedal released,
. Faulty brake switch. An open in the wire
GRN/wHT
Brake pedal push€d,
then r€leased
Check tof voltage to ground:
There should be battery voltage
with the pedal pushed, and O V
with the Dedal released.
Blown No. 42 l2O Al tuse in the
under-hood fuse/relay box
Faulty brake switch
An open in the wire
6RED/BLU
lgnition switch ON (ll)Connect to ground; Indicator
light in the gauge assembly
comes on.
Blown bulb
Blown No. 15 (10 A) fuse in the
under-dash fuse/relay box
Faulty dimming circuit in the gauge
assembly
An open in the wire
7LT GRN/
BLK
RESUME button
pushedCheck for voltage to ground:
There should be battery voltage.
Faulty SET/RESUME switch
Faulty cable reel
An open in the wire6LT GRN/
RED
SET button pushed
qPNK
MT/: Clurch pedal
released
A/T: Shift l€ver in [Zl,
lD:I, or lE.l
-
Check for continuity to ground:
There should be continuity.
NOTE: There should be no con-
tinuity when the clutch pedal is
depressed or when the shift
lever is in other positions.
Faulty or misadiusted clutch switch(M/T)
Faulty A/T gear position switch(A/T)
Poor ground (G201 ,G4O1)An open in the wire
10BLUStart the engine.Chsck for voltage to ground:
There should be battery voltage.
. Faulty ignition system or ECM. An open in the wire
11ORN
lgnition switch ON (ll)
and main switch ON;
rsise the front of the
car, rotat€ one wheel
slowly.
Check Jor voltage between the
ORN @ and BLK O terminals:
There should be O- about
10 V-O- about 1O V
repeatedly.
. Faulty vehicle speed sensor (VSSI. An oDen in the wire
'128RN/WHTConnect battery power
to the BRN/WHT
terminal and ground to
the BRN/BLK terminal.
Check the sound of the actuator
motor: You should hear the mo-
tor running smoothly.
. Faulty actuator. An opsn in the wire
13BRN/BLK
14BRN/RED
Connect battery power
to the BRN/RED
terminal.
Check the operation of the mag-
netic clutch: Clutch should click
and output link should be locked.
Faulty actuator
An open in the wire
Poor ground (G3O 1)
il:
23-247

1.
2.
3.
Actuator Assembly Test
Disconnect the 4-P connector from the actuator.
Check that the output linkage moves smoothly.
Connect battery power to the D terminal and groundto the A terminal,
ACTUATOR
Check for I clicking sound trom the magnetic clutch,and that the output linkage is locked. lf the outDutlinkage is not locked, replace the actuator asssmblv.
Check the operation oJ the actuator motor in eachoutput linkago position according to the table (youshould be able to hear the motor).
Actuator Cable Adjustment
Check that the actuator cable operares smoothtvwithout binding or sticking.
Start the engine and warm it up to normaloperatingtemperature (radiator fans come on twicel,
Measure how far the output linkage moves from thefully closed position. Free play should be 1 1 1 1.5mm (O.43 I 0.06 in).
4.
FREE PLAY:1 1 I 1.5 mm (0.43 r 0.06 int
FULLY CLOSED POSITION
4. lf the free play is not within specs, loosen the lock-nut and turn the adjusting nut as required.
NOTE: lf necessary, check the throttle controlsys-tem {see section 1 I }, then recheck the output link-age free play.
5. Retighten the locknut and recheck the free play.
Battery
polaritiesOutput linkage
position
oFULLY
CLOSED
MIDDLE
POStTtON
FULLY
OPEN
Terminal
B
Terminal
The
molor
runs.
The
molor
runs.
The
molor
srops.
I
TerminalTerminal
The
motor
stops.
The
motor
runs.
The
motor
runs.
FULLY CLOSED
,tilr
23-253