Lash ACURA INTEGRA 1994 Service Owner's Manual

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

Side Marker/TurnSignal/Hazard Flasher System
Component LocationIndex
23-184
GAUTION:
a All SRS electrical wiring harnessos ar6 covered with
yellow insulation.
a Belor€ disconnocting any pan of the SRS wire har-
ngss, connoct the short connector{s).
a Rsplace tho 6ntir€ affect€d SRS harnoss sssembly il
it has an op€n cilcuit or damaged widng.
TURN SIGNAL INDICATOR LIGHTS(ln the gauge assembly)
SRS MAIN HARI{ESS(Cov.rod with Ysllow in3ulationl
Bulb Locations,23-115
COMBINATION LIGHT SWITCHReplacement, page 23-160HAZARD WARI{ING SWITCHReplacement, page 23-187Test, page 23-187
Test, page 23-1
UNDER-DASHFUSE/RELAY 8OX
TURN SIGNAL/HAZARO RELAYInput Test, page 23-186
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UNDEN-HOOD FUSE/RELAY 8OX
N0.41 1100A) No.40 (50A)
Gircuit Diagram
COMBINATIONLIGHTSWTCHA.---of-RED/GRN
IGNITION SWITCH
/6i\WHT/BTK +WHT+ +- BIK/YET
\jv
UNDER-DASH FUSE/RELAY 8OX
FUSE HOTJER
GRN/BtU
TURN SIGiIALswtTcH
I
|l
+DASH TIGHTSBRIGHTNESSCONTROLLER
SIOE MAFKER LIGHTFLASHER CIRCUITlln tho intogruted controlunitl
RIGHT TURN SIGNAT TIGHTS
INOICATOR I FRONT I REARL|GHT I t32CD I t32CPl(1.4W1
23-185

Side Marker/Turn Signal/Hazard Flasher System
Turn Signal/Hazard Relay Input Test
CAUTION:
a All SRS electrical wiring harn6ss6s ar€ covered with
yellow insulation.
a B€foro disconn6cting any part of th€ SRS wire har-
noss, connoct tho short connector(s).
a Replaco tho ontiro sftoctod SRS harness ass€mbly it
it has an open circuit or damagod wiring,
I . Remove the turn signal/hazard relay from ths under-
dash Juse/relay box.
2. Inspect the relay and socket terminals to be sure they
are all making good contact.
a It the terminals are bent, loose or coroded, repair
them as necessary, and recheck the system.
a lf the terminals look OK, make the tollowing in-
put tests at the socket.- lf a test indicates a problem, find and correct
the cause, then recheck the system.- lf all the input tests prove OK, the turn sig-
nal/hazard relay must be taulty; replace it.
UI{DEB-DASHFUSE/RELAYBOX
Test: D€sired rosult
SBS MAIN HAR ESS{Covg.ed with yollow inrulltion)
TelminalTeEt conditionPo$iblo causo it fosult is not obtainod
,lEUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G201 , G4O1). An oDen in the wire
2B
lgnition switch ON (ll)
and hazard warning
switch OFF
Check for voltage to ground:
There should be battery voltage.
Blown No. 26 (10 A) fuse in ths fuse
holder
Faulty hazard warning switch
An open in the wire
lgnition switch OFF and
hazard warning switch
ON
Check for voltage to ground:
There should be battery voltage.
Blown No. 43 (10 Al fuse in the
under-hood fuse/relay box
Faulty hazard warning switch
An ooen in the wire
3
Hazard wa.ning switch
is ON; connect the B
terminal to the L
termrnat.
Hazard lights should come on.Poor ground (G2O1, G3O1, G4O1
G503)
Faulty hazard warning switch
An open in the wire
lgnition switch ON (lll
and turn signal switch
in right or left; connect
the B terminal to the L
terminal.
Right or left turn signal lights
should come on.
. Faulty turn signal switch. An open in the wire
23-186
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