Acura Integra 1998 Service Manual page 1206

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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.
Wire Test condition
Test: Desired result
Possible causs it result is not obtained
Test: Dcsired lesult
Possible cause it result is not obtainsd
INTERLOCK CONTROL UNIT
GRN/wHT2
1
WHT/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
( T C M )
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.
t
GRN/WHT'
Shift lever in position
E
Check tor continuity to ground:
There should be continuity.
Faulty A/T gear position switch
P o o r g r o u n d { G 2 0 ' 1 , G 4 0 1 )
An open in the wire
3
YEL/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:
BLK
Under all conditions
Check lor continuity to ground:
There should be continuitY.
. P o o r g r o u n d ( G 2 0 1 , G 4 0 1 )
. 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
P o o r g r o u n d { G 2 O 1 , G 4 0 1 }
An open in the wire
3
WHT/YEL
lgnition 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 wire
WHT/BLU
4
WHT/BLK
Shift lever in position
E and push button
pressed
Check for continuity to ground:
There should be continuity.
Faulty pafking pin switch
P o o r g r o u n d ( G 2 O 1 , G 4 O 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