2000 HONDA CIVIC Interlock

Starting System
Component Location Index
A/T GEAR POSITION SW|TCHTest, page 23'154Replacement, page 23-155
STARTER CUT RELAY (M/T}
Test, page 23-86, 87
oo
ool
CLUTCH INTERLOCK
swlTcH
BATTERYTest, page 23-91
STARTERTest, page 23'95Solenoid Test, Page 23 96
Replacement, Page 23-100
Performance Test, Page 23-101
23-93

-Starter Test
NOTE; The air temoerature must be between 59 and
100'F (15 and 38"C) before testing.
Recommended Procedure:
. Use a staner system tester.
. Connect and operate the equipment in accordance
with the manufacturer's instructions.
. Test and troubleshoot as described,
Alternate Procedurg:
. Use the following equipment:- Ammeter, 0 - 400 A
- Voltmeter, 0 - 20 V (accurate within 0.1 volt)
- Tachometer, 0 - 1,200 rpm
. Hook up a voltmeter and ammeter as shown.
NEGATIVETERMINAL
NOTE: After this test, or any subsequent repair. reset
the ECM/PCM to clear any codes (see section l1)
Check the Start€r Engagemont:
1. Remove the No. 44 (15 A) fuse from the under-hood
fuse/relay box,
2. Turn the ignition switch to START (llll with the shift
lever in E or E position (rVT) or with the clutch pedal
depressed {M/T). The starter should crank the engine.
. lf the starter does not crank the engine, go to
step 3.
. lf itcranksthe engineerraticallyortooslowly, go
to "Check for Wear and Damage" on the next
page.
Check the battery. battery positive cable, ground,
starter cut relay, and the wire connections for loose-
ness and corrosion, Test again.
lf the starter still does not crank the engine, go to
step 4,
Unplug the connector (BLK,/WHT wire and solenoid
terminal) from the starter,
Connect a jumper wire from the battery positive (+)
terminal to the solenoid terminal.
The starter should crank the engine.
. lf the starter still does not crank the engine,
remove it, and diagnose its internal problem
. lf the startercranksthe engine, goto step 6.
Check the ignition switch (see page 23-891.
Check the starter cut relay and clutch interlock switch
(see page 23-86,87).
Check the A/f gear position switch (see page 23-154).
Check for an open in the wire between the ignition
switch and starter.
7.
(cont'd)
23-95
9.

Interlock System
Component Location Index
INTERI.OCK
UNITInput Test, page 23-'146
KEY INTEBLOCK SOLENOIDrnd KEY INTERLOCK SWITCH(ln the steering lock assemblylTest, page 23-147
PARK PIN SWITCHTest, page 23-148
SHIFT LOCK SOLENOIDTest, page 23-147
23-144

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

- Under-dash Fuse/Relay Box (cont'd)
Fuse/Relay I nformation
Fuse
NumberFuse NameAmps
(P/W RELAY)
(S/R RELAY)
FR WIPER
FR WASHER
LO
Page
10-7 |
I
Component or Clrcuit Protected
i Power window relay, Moonrool
Front wioer/washer
CIGARETTE
LIGHTER
ACC SOCKET
10-7Accessory power socket
I RAD|O CLOCK
I
110 115)l
tl
1O-7 |
I
Stereo radio tuner ('96198 models), Audio unit ('99100
model)
Not used
i 7.5i 114 iDash & console lights
I srnnrensrorunl | 7.slzl , zt -t , ! eCU-n main retay, PCM/ECM, Integrated controt unit
I ot 21-2 t
I LICENSE LIGHTS I 7.5
I rerr uesls I
Parking lights, License plate lights, Tail lights| 1oo-1 |
tl
| (f NTERLOCK UNIT) | 7.5 | 10-12 I Interlock system
* = '98 models
6-2