1994 HONDA INTEGRA transmission

UNOER_HOOD FUSE / REI.AY 8OX
Circuit Diagram
IGNITIONswrTcHUNOER-OASHFUSSREI-AY 8OX
No.19ll0A)FUSE
TMI{SMrSSr0r,lc0IJTRori.IODULEITCMI
fitMritc-;-CANCEL lgll
tlYELTWHT GRN/8L|(
D4
II._l
TRANSMISSIONMODU|.! [TCM}
t
INTERLOCKcoMtRotUNJ]_
IGRT'IMHTo*nn,o_yTT
pr{x/cR1 -J
IGR €|-U -l
GRiITYEt
LT GNNiW{T
No.19 {lFUSE
V
I
I
DASH I-IGHTSBRIGHTNESSCONTROI.IERG2o lG401
I
G201G40t
/-?t ftrt*lwHT/BLX +wHT+ CH- Bl.x/Y€t -+<.\-o+!
y "l
IYEL
lln tho gtugo 8ls€mbvl
AN GEAR POSITION INDICATOR DIMMING CIRCUIT
A/T GEANPOStTt0NcoNsot-ELIGHT0.4w)
M GEARPosrTroN swncH
23-133

CONNECTOR "D": Visw from wire side ot femals
tetminals
No.WilaTest condition
CONNECTOR "8": View from wire sid6 of fem.l6
i6lminals
No.WileTost condition
CONNECTOR "C": Vi3w lrom wire sido of temale
t6rminals
Test condition
Test: D€sirod rasultPossible cause if result is not obtainod
Tost: D€sir6d resultPossiblo cause if result is not obtained
GRNA HTGRNITELYELAA'HTGRN/BLK
Tost: Desirod r6sult Possible cause it result is not obtainedNo.
BLKUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G2O1, G4O1). An open in the wire
2YEL
lgnition switch ON { ll}Check for voltage to ground:
There should be battery voltage.
. Blown No. 15 (1O A) tuse in the
under-dash fuse box. An open in the wire
RED/BLK
1
RED/BLK
ano
RED
Combination light
switch ON and dash
lights brighlness control
dial on full bright
Check for voltage between
RED/BLK and RED terminals:
There should be baftery voltage.
. Faulty dash lights b.ightness control
system. An open in the wire
GRN^^/HT
Shift lever in position @NOTE: Don't push the
brake pedal.
Check for continuity to ground:
There should be continuitv.
NOTE: There should be no
continuity in any other position.
Faulty A/T gear position switch
Poor ground
An open in the wire
GRN/REDShift lever in position @
GRNShift lever in position S
GRN/BLUShitr lever in position @
GRN/YELShitt lever in position f2 ]
LT-
GRNMHTShift lever in position E
2GRN/BLK
lgnition switch ON (ll)
and shift lever in anyposition except @
Check for voltage to ground:
There should be battery voltage
for two seconds after the
ignition switch is turned ON,
and less than 1 V two seconds
later.
. Faulty t,ansmission control module(TCM)
. An open in the wire
3YEL/vVHT
lgnition switch ON (ll)
and shitt lever in anyposition except @
Check for voltage to ground:
There should be less than 'l V
tor two seconds after the
ignition switch is turned ON
and more than 5 V two
seconds later.
. Faulty transmission control modute(TCMI
. An open in the wire
4LT.
GRN/BLK
lgnition swirch ON {ll}Check for voltage to ground:
There should be mofe than 5 V
. Faulty transmission control module
ITCM) or ECM. An open in the wire
23-135

Control Unit Input Test
Oisconnect the 8-P connector from the interlock control
unit. Check for good contact between the connector and
socket terminals. lf the terminals 8re OK, make Iollow-
ing input tests at the connector. lf all input tests are OK,
but the problem remains, replace the cont.ol unit,
NOTE: lf the shilt lock solenoid clicks when the ignition
switch is ON and the brake pedal is pushed (shift tever
is in lfl position, accelerator is in rest position), the shiftlock system is electronically normal; test the A/T gear
positaon switch as described on page 23- 134.
Shift Lock Sy.tem:
No, Wlr6 Tost condition
Koy Intodock Systam:
No. WireT6st condition
Tost: Dosired resultPossiblo cause if rssuh is not obtainod
T6st: Desiled reaultPossible caure if rosult is not obtainsd
'I
lgnition switch ON (ll)
Brake pedal pushedCheck for voltage to ground:
There should be bsttery voltage
Blown No. 41 (15 A) fuse in the
under-hood fuse/relay box
Faulty transmission control module(TCM}
Faulty ECM
Faultv brake switch
Faulty throftle position lTP) sensor
An oDen in the wire
wn t/hEulgnition switch ON
brske pedal and
accelerator pushed
the same time
I [),
at
Check for voltage to ground:
There should be less than
battery voltage.
GRN^/vHT'
Shift lever in @Check lol continuity to ground:
There should be continuity.
Faulty A/T gear position switch
Poor ground {G201, G401}
An oDen in the wire
YEL/BLK
lgnition witch ON (lllCheck for voltage to ground:
There should be battery voltage
Blown No. 15 (10 A) luse in the
under-dash fuse/relay box
Faulty shift lock solenoid
An oDen in the wire
BLKUnder all conditionsCheck for continuity to ground:
There should be continuitv.
. Poor ground (G2O1, G4O1). An ooen in the wire
2
Shift lever in position
E
Check for continuity to ground;
Ther€ should be continuity.
Faulty A/T gear position swirch
Poor ground (c2O1 , G4O1)
An oDen in the wire
3WHTAYEL
lgnition switch tu.ned
to ACC (ll 8nd the keypushed in
Check for voltage to ground:
There should be battery voltage
Bfown No. 42 l2O Al fuse in the
under-hood tuse/relay box
Faulty steering lock assembly(kev interlock solonoid)
An oDen in the wire
4WHT/BLU
lgnition switch turned
to ACC (ll and the keypushed in
Check tor voltage to ground:
There should be batery voltage,
Bfown No. 42 l2O Al fuse in the
under-hood fuse/relav box
Faulty steering lock assembly(key interlock solenoid)
An oDen in the wire
23-141

Back-up Lights
Manual Transmigsion:
NOTE: Check the No. 1 5 { 1 O A) fuse in the under-dash
fuse/relay box befote testing.
'1. Test the back-up light switch by placing the shift
lever in reverse and turning the ignition switch to ON
(

).
2. It the back-up lights do not go on, check the back-
up light bulbs in the taillight assembly.
3. lf the tuse and bulbs are OK. disconnect the connec-
tor from the back-up light switch.
terminal sade
This washer must
always be replacedtor the switch tolunction properlY
and to ptevent ollteaKs.
4. With the shift lever in reverse. check Jor continuity
between the A and B terminals with the switch in-
stalled.
There should be continuity.
a lf there is no continuity, replace the switch {see
section 13).
a lf there is continuity, but the back-up lights do not
go on, check for:- Poor ground (G5O3)
- An open in the wire
23-180
Automatic Transmission:
NOTE: Check the No. l 5 ( 1 O A) fuse in the under-dash
fuse/relay box belore testing.
1. Test the back-up light switch by shitting the shift
lever to l3l and turning the ignition switch ON (ll).
2. lf the back-up lights do not go on, check the back-
up light bulbs in the taillight assembly.
3. lf the tuse and bulbs are OK, disconnect the 14-P
connector from the A/T gear position switch (back-
up light switch).
Move the lever back and torth at the LBI position
without touching the push button, and check tor
continuitv between th€ C and D terminals. There
should be continuitY within the range of free plsy of
the shift lever.
a lf there is no continuity within the range oJ J.ee
play, adjust the position ot the A/T gear position
switch lsee section 141.
a lt there is continuity, but the back-up lights do not
go on,check {or:- Poor ground {G503)- An oDen in the wire
4.