1998 HONDA INTEGRA key

Interlock System
Component Location Index
Description
The car is equipped with the lollowing devices to plevent inadvertent shifiing:
a A/T selector with shift lock
a Key cylinder with interlocked ignition key
Shift Lock Svstem:
The shift lock system prevents the shilt lever trom moving to @ or [6ol from the p position unless the brake pedal
is depressed and the accelerator is in its rest position.
NOTE:
a The shift lever cannot be shifted when the brake pedal and the accelerator are depressed at the same time.
a In case of system malfunction, the shift lever can be released by pushing a key into the release slot near the shift lever.
SRS components are located in this area. Review the SRS component locations, precautions, and procedures in the SRS
section (23) belore performing repairs or service.
KEY INTERLOCK SOLENOIDand KEY INTERLOCK swlTCH
{ln the steering lock assembly}
INTERLOCKCONTROLUNIT
PARKING PIN SWITCHTest, page 23-142Replacement, page 23-1 42
Replacement, page 23-143
SHIFT LOCK SOL€NOIDTest, page 23 143
23-146

)
t
t
Description
Ths cal is equipped with the tottowing devices to prevent inadvertenl shifting:
a Key cylinder with interlocked ignition key (Key Interlock System)
a shift lever with shift lock (shilt Lock system)
Key Interlock System:
When the shift lever is in any other position than @ or is not securely locked in @ (parking pin switch is ON), a solenoid
is activated, making it impossible to remove the ignition key from the ignition switch.
To be able to remove the key, the shift lever must be in E] and must be securely locked in this position {parking pin
switch must be turned oft by the lock pin)
The shift lever is in any othel position than El and the psrking pin switch is ON:
CYLINDER
The shitt lever is in l!] and the parking pin switch is OFF:
KEY CYLINOER
PARKING PIN
SHIFT LOCK LEVER
SHIFT LOCK LEVER
{t
23-147

lnterlock System
Circuit Diagram
NOTE: Different wires with the same color have been given a number suflix to distinguish them (for example,cRNA/VHT I and cRNMHT ' are not the same).
WHT/ BLK .-- WHI
cnrruvgr'
+. BRAKE LIGNTS.CSUISE CONTROLUNIT. ABS COIITROL UNIT' ECM
INTEBLOCKCONTROLUNIT
A]'IGEARPOStTIONINOICATOR
v
t,
UNDER-HOOO FUSEi RELAY BOX
N0.41 (100A) N0.42 (404)
YEUBLUcnrivrr '
WHT/BLU
KEYINTERLOCKswtTcH
THBOTTLEPosrT|0N (TP)SENSOR
f7
IRED/BLK
(Cjl :in posiron E t
23-14A

){r/
Control Unit Input Test
1. Disconnect the 8P connector from the interlock con-
trol unit.
2. lnspect the connector and socket terminals to be
sure they are all making good contact.
a It the terminals are bent, loose or corroded, repair
them as necessary, and recheck the system.
a lf the terminals look OK, make the following in-
put tests at the connector.- lf a test indicates a problem, tind and correct
the cause, then recheck the system.- lf all the input tests prove OK, substitute a
known-good control unit, and recheck the sys-
tem. lf the check is OK, the control unit must
be faulty; replace it.
NOTE: lf the shift lock solenoid clicks when the igni-
tion switch is turned ON (ll) and you step on the
brske Dedal (with the shift lever in E). the shift lock
system is electronically normal; if the shift lever
cannot be shifted from fl, test the 46 gear position
switch as described on page 23-142, and see sec-
tion 14.
Shift Lock System:
No. Wire Test condition
No. WireTest condition
Test: Desired resultPossible causs it result is not obtained
Test: Dcsired lesultPossible cause it result is not obtainsd
INTERLOCK CONTROL UNIT
GRN/wHT2
1WHT/RED
lgnition switch ON (ll)
Brake pedal pushed
Check for voltage to ground:
There should be battery voltage
Blown No. 52 {20 A) fuse in the
under-hood fuse/relaY box
Faulty transmission control module
(TCM)
Faulty ECM
Faulty brake switch
Faulty throttle position (TP) sensor
An open in the wire
lgnition switch ON (ll)
Brake pedal and
accelerator pushed at
the same me
Check for voltage to ground:
There should be less than
battery voltage.
tGRN/WHT'
Shift lever in position
E
Check tor continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G20'1 , G401)
An open in the wire
3YEL/BLK
lgnition switch ON (ll)Check for voltage to ground:
There should be battery voltage
Blown No. 25 (7.5 A) fuse in the
under-dash fuse/relay box
Faulty shift lock solenoid
An open in the wire
Key Int€rlock Systcm:
BLKUnder all conditionsCheck lor continuity to ground:
There should be continuitY.
. Poor ground (G201, G401). An open in the wire
GRNiWHT'
Shift lever in position
E
Check for continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G2O1, G401 }
An open in the wire
3
WHT/YELlgnition switch turned
to ACC (l) and the key
pushed in
Check tor voltage to ground:
There should be battery voltage.
Blown No. 52 (20 A) fuse in the
under-hood fuse/relaY box
Faulty steering lock assemblY
(key interlock solenoidl
An open in the wireWHT/BLU
4WHT/BLK
Shift lever in position
E and push button
pressed
Check for continuity to ground:
There should be continuity.
Faulty pafking pin switch
Poor ground (G2O1, G4O 1)
An open in the wire
Shift lever in position
E and push button
reteaseo
Check for continuity to ground:
There should be no continuity.
Faulty parking pin switch
Short to ground
An open in the wire
I'
23-149

Interlock System
Key Interlock SolenoidTest
1. Remove the dashboard lower cover.
2. Remove the knee bolster.
3. Disconnect the 7P connector from the main wireharness.
Check for continuity between the terminals in each
switch position according to the table.
5. Check that the key cannot be removed when the bat-
tery is connected to the No. 6 and No. 7 terminals.
a lf the key cannot be removed, the key interlock
solenoid is OK.
a lf the key can be removed, replace the steering
lock assembly (key interlock solenoid is not avail-
able separately).
\_____,___ ___l
PositionJ7
lqnitions-wirch ACC
Key plshed inG---o
Key released *o---o
* : 15 - 20 ohms
,l
\,
Parking Pin Switch Test/
1.
2.
Replacement
3.
Remove the lront console (see section 20).
Oisconnect the parking pin switch 3P connector
from the main wire harness.
Check Ior continuity between the terminals in each
switch position according to the table.
lf necessary, remove the self-locking nut and the
parking pin switch.
PARKINGPINSELF'LOCKINGNUT SWITCHReplace3 N.m {0.3 kgf.m,2.2 lbf.ft)
Terminal
,o"n*
-- ---_\B
Shitt lever in
position @
Push button
pusneoo-----o
Push button
reteaseo

Integrated Control Unit
Circuit Diagram
Description
An integrated control unit, located in lhe left kick panel, integrates the lunctions of the key-in/seat belt r€minder , side
marker light llasher, wiper/washer, lights-on reminder, rear window delogger timer, brake system light bulb check, and
engine oil pressure indicator flasher circuits.
NOTE: Different wires with the same color have been given a nu mber suflix to distinguish them (for example,
GRN/RED I and GRN/RED' are not the same).
REAR WINDOWDEFOGGERRELAYREAF WINDOWDEFOGGENIND CATORL GHT
f-7
IIBLU/YEL
WHT/ BLK
WHT/ REO
+WHT
WNDSHIELDWIPERiWASHER SWITCH
INT OFF/INT
f7 f7
tltlYEUBLU 8LU/GRN
BLUMHT
J
wtN0sHr€10WIPERMOTOR
UNDER.DASH FUSARETAY BOX
F rmecnlleo counoL ultr
YEUBLU
rYEUBLU
YEUREO YEUREO
tl
IYEURED
LOWENGINEOIIPRESSUREINOICATOBLIGHT
; WINDSHIELD' WIPERMASHERI swlTcH
tf7IVtlYEL
J
FEARwtN00wOEFOGGERSWITCH
WHTIBLU
J
VOTTAGEREGULATOR(ln allernatol)
BLK
G441
ENGINEolLPRESSUREswrTcH
UNDER-NOOO FUSE/RELAY BOX
1.6
:6
t;t-L
i
"'i'- 'i*-
|
I Il
I vi: WINDSHIELO II WASHEB I
L__ "oto: _ __l(*)
n
s
s
,]
23-152
(*) :Wilh combined washer-wiper operalion

Integrated Control Unit
lnput Test (cont'd)
YEL/BLU
View from wire side
'With combined washer-wiper operation
Engine Oil Pressure Indicator Flasher System:
Wire/
No. TerminalTest condition
Key-in/Seat Belt Reminder System:
No. WileTest condition
Testi Desired result
Test: Desired result
Possible cause if result is not obtainsd
Possible cause if fesult is not obtained
*BLK/GRN
1Engine runningCheck for voltage to ground:
There should be battery voltage.
. Faulty charging system. An open in the wire
2YEL/RED
lgnition switch OFFCheck for continuity to ground:
There should be continuity.
. Faulty engine oil pressure switch. An open in the wire
lgnition switch ON (ll)Check indicator light. It the light
does not come on, attach the
YEL/RED terminal to groundl
The light should come on as the
ignition switch is turned ON.
. Blown bulb. An open in the wire
Start the engine.Check tor voltage to ground:
There should be battery voltage
lnsufticient oil
lmproper lubrication
Faulty engine oil pressure switch
1GRN/BLUDriver's door openCheck for continuity to ground:
There should be continuity.
. Faulty driver's door switch. An open in the wire
2
LT GRN/
RED
Front passenger's door
swrlcn open
NOTE: Before testing,
remove No. 43 {7.5 A)
fuse from the under-
hood fuse/relay box.
Check for continuity to ground:
There should be continuity.
. Faulty front passenger's door switch'An open in the wire
3LT 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 (G2O1, G401 l
An open in the wire
4RED/BLU
lgnition switch ON (lll
and driver's seat belt
unbuckled
Check for voltage to ground:
There should be 1 V or less.
Faulty seat belt switch
Poor ground (G551l
An open in the wire
NOTE: Refer to page 23-133 for the seat belt switch test.

Key-in ReminderSystem
lgnition Key SwitchTest
\f
DoorSwitchTest
1. Open the door.
2. Remove the screw, then pull out the door switch.
3. Disconnect the 1P connector from the switch.
1P CONNECTOR
4. Check for continuity between the positive terminal
and the base plate (ground) in each switch position
accordinq to the table.
BASE PLATE
Terrninal
PositionPOSITIVEBASE PLATE
PUSHED (door closedl
RELEASED (door open)oo
NOTE: Refer to page 23-153 for a diagram of the key-
in reminder circuit, and to page 23-148 for the input test
of 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 d;shboard lower cover and knee bolster
(see page 23-71).
2. Disconnect the 7P connector from the main wire
narness.
3. Check lor continuity between the No. 2 and No. 4terminals in each condition according to the table.
Terminal
Condition2
KEY INSERTEDo--o
KEY BEMOVED
23-158