Honda Prelude 1993 Service Manual page 1337

Disconnect the 1
No. Wile
connecto? from the control unit.
Test condition Test: Dosi?ad result
Reconnect the 18-P connector to the control unit.
No. wiro Test condition
Tost: Dosirod te8ult
Possibli caus6 it rosult is not obtainod
PosEiblo causs if result is not obtainsd
1
BLK
Under all conditions.
Check tor continuity to ground:
There should be continuitv.
. Poor ground (G401 , G4O2, G4O4).
. An ooen in the wire.
WHT/RED
ancl
YEL/RED
connect the YEL/RED
terminal to the WHT
terminal, and the
WHT/RED terminal to
the BLK termlnal
momentarily.
Check door lock operation:
All doors should unlock.
. Fauly actuator.
. An open in the wire.
Connect the wHT/
RED terminal to the
WHT terminal, and
the YEL/RED terminal
to the BLK terminal
momentarily.
Check door lock ooeration:
All doors should lock.
W H T
Under all conditions.
Chsck tor voltage to ground:
There should be battery
vo|tage.
. Blown No. 44 (1 5 Al fuse.
(ln the under-hood tuse/felay boxl
. An open in the wire.
4 GRN/WHT Driver's door lock
switch in LOCK.
Check for voltage to ground:
There should be 1 V or less.
Faulty driver's door lock switch.
Poor ground (G4O1, G402, G404).
An ooen in the wire.
G R N / R E D T
Driver's door lock
switch in UNLOCK.
BLKi RED
Passenger's door lock
switch in LOCK.
Check for voltage to gfound:
There should be 1 V or less.
Faulty passenger's door lock switch.
Poor ground (G4O1, G402, G4O4).
An open in the wire.
BLK/WHT Passenger's door lock
switch in UNLOCK.
6 BLU/WHTI Driver's door lock
knob in LOCK.
Check Jor voltage to ground:
There should be 1 V or less.
Faulty driver's door lock actuator.
Poor ground (G4O1 , G402, G4O4).
An oDen in the wire.
BLUi RED
Driver's door lock
k n o b i n U N L O C K .
7
GRN/BLU Driver's door open.
Check for voltage to ground:
There should be 1 V or less.
NOTE: Before testing, remove
No. 46 (1 5 A) tuse in the
under-hood fuse/relav box.
Faulty door switch.
Poor ground.
An open in the wire.
G R N / R E D ' Passenger's door
open.
8
BLU/WHT' lgnition key is in the
ignition switch.
Check for voltage to ground:
There should be 1 V or less.
Faulty ignition key switch.
Poor ground (G4O1 , G4O2, G4O4).
An open in the wire.
9 BLKi RED
Passenger's door key
cylinder in LOCK.
Check tor voltage to ground:
There should be I V or less as
the switch is turned.
Faulty passenger's door cylinder.
Poor ground (G4O1 , G402, G404).
An oDen in the wire.
BLK/WHT Passenger's door key
cylinder in UNLOCK.
To prevent damago to the motol, apply battefy voltago only mom€ntarily.
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