1998 HONDA CIVIC 23-1

J
UNDER HOOD FUSARELAY BOX
No 41 (80A) N0.42 (404)
GFNWHT
WHT/GFN
UNOEF,DASHFUSE/RELAY80x
SHIFT LOCKsoLENO|0(O,l : UNLoCK)
I
5
53 INTERLOCK CONTFOL IJNIT
BLK
I
G401G402
GRNAVI{I GR}.//WHT
rl
JI
VIBRAI(E LIGHIS IcRUrsE coNTROL UNIT IABS CONTROT, UNIT IrcM (cw) I
YEL
lr
rEt
till
l'YEUBLK
M GEARPOStT|ONINDICATOF
f7
I
] SENSOR
f7
IRED/BLK
WHT/BLK
II
t,/P1 ennr
Vl$"ilT?l*r e,."o rlr I PUsh bdon frsn€o I| Inpos on B )BLK
II
I:
G401G402
KEY llTNTEnLOCK | |swrTcH I I
KEY INTERLOCK CIRCUIT
GFNWHT
POSTTTONswlTcH(Clos€d : In posilioa lll )
23-145

Interlock System
Control Unit Input Test
1. Disconnect the 8P connector from the interlock con-trol unit.
2. Inspect the connector and socket terminals to besure they are all making good contact.. lf the terminals are bent, loose or corroded, repairthem as necessary, and recheck the system.. lf the terminals look OK, make the followinginput tests at the connector.- lf a test indicates a problem, find and correctthe cause, then recheck the system.- lf all the input tests prove OK, substitute aknown-good control unit, and recheck the sys-tem. lf the check is OK, the control unit mustbe faulty; replace it.
NOTE: lf the shift lock solenoid clicks when theignition switch is turned ON {ll) and you step on thebrake pedal (with the shift lever in E), the shift locksystem is electronically normal; if the shift leve.cannot be shifted from E], test the Aff gear position
switch, park pin switch, and see section 14.
Key Interlock System:
CavityWireTest condition
Reconnect the 8P connector to the interlock control unit.
Shift Lock System:
Cavity WifsTest condition
INTERLOCKCONTROL UNIT
Test: Desired result
Test: Dgsired result
Wire side offemale terminals
Possible cause if result is not obtained
Possible cause if result is not obtained
WHT/BLU
lgnition switch turned toACC (lland key pushed inCheck for voltage to groundiThere should be baftery voltage.Blown No. 48 (30 A) fuse in the underhood fuse/relay boxBlown No. 33 (7.5 A) fuse in the underdash fuse/relay boxFaulty steering lock assemblylkey interlock solenoid)An open in the wire
5WHT
BLKUnder all conditionsCheck for continuity to ground:There should be continuity.
' Poor ground (G401, G402). An open in the wire
6BLK./BLUShift lever in ElCheck for continu;ty to ground:There should be continuity.Poor ground (G401, G402)Faulty Ay'T gear position switchAn open in the wire
2YELlgnition switch ON lll)Check for voltage to ground:There should be banery voltage.
. Blown No. 25 (7.5 A) fuse in the under,dash fuse/relay box. An open in the wire
3YEUBLK
lgnition swirch ON (ll)Check for voltage to ground:There should be baftery voltage.Blown No. 25 (7.5 A) fuse in the under-dash fuse/relay boxFaulty shift lock solenoidAn open in the wire
6BLI(BLUShift lever in ICheck for voltage to ground:There should be 1 V or less.Poor ground (G401, G402)Faulty A,/T gear position switchAn open in the wire
7WHT/RED
lgnition switch ON lll)Brake pedaldepressedCheck for voltage to ground:There should be 1 V or less.Blown No. 52 (15 A) Iuse in the underhood fuse/relay boxFaulty PCMFaulty brake switch (see section 1l)Faulty throttle position {TP) sensor(see section 1'l )An open in the wire
lgnition switch ON (ll)Brake pedalandaccelerator depressed atthe same time
Check for voltage to ground:There sho(Jld be battery voltage.
23-146

Key Interlock Solenoid Test
Remove the driver's dashboard lower cover and
knee bolster (see section 20)
Disconnect the 7P connector from the main w're
harness.
3. Check Ior continuity between the terminals in each
kev oosition according to the table'
4. Check that the key cannot be removed with power
and ground connected to the No. 7 and No 6 termi-
nals
. lf the key cannot be removed. the key interlock
solenoid is OK.
. lf the key can be removed, replace the steering
lock assembly (the interlock solenoid is not avail-
able seParatelY).
1.
Terminal
i*i,r"
- - --\7
lgnition
switch
ACC fl)
Key pushed ino--o
Key releasedo--o
Shift Lock Solenoid Test
't.Remove ths front console (see section 20)'
Disconnect the shift lock solenoid 2P connector'
Connect battery power to the No. 1 terminal and
ground to the No. 2 terminal of the solenoid momen-
Iarrry.
NOTE: Do not connect power to the No 2(-) termi-
nal (reverse polarity) or you will damage the diode
inside the solenoid
Check that the shift lock releases when the release
lever is pushed, and check that it locks when the
release lever is released
lf the solenoid does not work, replace the solenoid'
23-147

Interlock System
Park Pin Switch Test
1, Remove the front console (see section 2Ol.
Disconnect the 4P connector from the park pinswitch.
Check for continuity between the No. 3 and No. 4terminals with:- the shift lever any position other than E, or- the push button pushed in E.There should be continuity.
Check for continuity between the No. 3 and No. 4terminals with the shift lever in E and the push but-ton released. There should be no continuiw. lf nec-essary, replace the park pin switch.
NOTE: Park pin switch 4p connector No. 1 and No.2terminals are lor Ay'T gear position console light.refer to the circuit diagram on page 23-1S0.
23-14A

A/T Gear Position Indicator
Component Location lndex
sRS components are located in this area. Review the sRS component locations, precautions, and procedures in the sRS
section (241 before performing repairs or service'
A/T GEAR POSITION INDICATOR
Input Test, page 23-152
A/T GEAR POSITION SWITCHTest, page 23 154Replacement, page 23-155
t
E
N
E
E
E
(A/TI
E
N
E
E
r
(cw)
23-149

A/T Gear Position Indicator
UNDER.DASHFI.JSE/FELAY BOXIGNITIONswrrcH
Circuit Diagram
CW:
UNDER HOOD FUSE/RELAY BOX
6; |-;,,'r&l \o3o'75A
rr,/-TPLK+r,,'rirac coJ-aL("E1.<\c-t]
---
IY. PCM"
:i3M)''
V
ILT GRN
TqM 'l
f7v
tlYEL GFN
8LK
G401G442
*1 : 96'98 modeis+2 i '99t0 models
No 30 {7.5A)
V
IRED/BLK
t,
||l
| ,k sfi0f, |Itg)coNsotEl
I Y i1?ri I
tll
t'RED
I
I
vDASI| L GHTSERIGHTNESSCONTNOLLER
l./TGEAR POSITION INDICAToR (h lhe gauge assembty)
YYYY
A/TGEARPostTtoNswrTcH
A'/T GEAB POSITION NDICATOR OIMMING C]RCUIT
23-150

JCircuit Diagram
A/TUNDER HCCD FUSE BELAY BOX
PCi\4
V
I
I.T Gq
GNIT ONSW TCHTJNDEF OASH
'^a" fr-.-r^ """- *
-l
6l\
U__t- -t ir_i ;_P _+irh-
\:f
; h,:_
ArT GEAR POS TION IND CATOF (n lhegauge assembyl
A13412
YEL
f333{'*)
f7
IRED,ELKPCM
V
IGRNlBLK
I
l-
6LK 8LU
12
f7 f7 fl
ItlWHT YEL GFN
rl\4 l765 2 (Nol used)
{'}'}'1,
I
A._. --An i
t.--it-
Lrl9_PNK-
A'T GEARBLK
AIT GEAR POSTON NDLCA1ORD MM]NG CIRCUT
II
I
DASH L GHTSBRIGHTNESSCONTFOLLER
f7
ISLU\. -Ti i:5AFL]SE
V
IF:I BLK
I
l',
ll^,.,^,1L,-N pos r oN II(d].ONSCLEI
lYi:il |
Il--f'-
IRED
I
I
DASH L GHTSBB GHTNESSCONTFOLLER
BLK
I
oio,G402
23-151

A/T Gear Position Indicator
1.
Indicator Input Test
Remove the gauge assembly from the dashboard (see page 23 135), and disconnect the 14p connector from rne gaugeassemblv.
Inspect the connector and socket terminals to be sure they are all making good contact.
. lf the terminals are bent. loose or corroded, repa ir them as necessary, and recheck the system.. lf the terminals look OK, make the following input tests at the 14p connector.- lf a test indicates a problem, find and correct the cause, then recheck the system.- lf all the input tests prove OK, but the indicator is faulty, replace the printed circuit board.
+1: Not used'2: AIT'3i CVT
l{P CONNECTOR "A"
REOBLU8RN
AIMA3A4A6
A8A9A10All412A13414
GRNLTBLK
GAUGE ASSEMBLY
23-152