Honda Prelude 1993 Service Manual page 1225

1
BLK Under all conditions.
Check Jor continuity to ground:
There should be continuitY.
. Poor ground {G401, G4o2, G404).
. An ooen in the wire.
Y E L I
lgnition switch ON.
Check tor voltage to ground:
There should be bsttery
voltage.
. B l o w n N o . 1 ( 1 O A ) f u s e .
(ln ths under-dash fuse/relay boxl
. An open in the wi,8.
GRN/WHT Shift lever in E.
NOTE: Don't push the
brake pedal.
Check for continuity to ground;
There should be continuity.
NOTE: There should be no
continuity in any other
position,
Faulty An gear position switch.
Poor ground (G4O1, G4O2, G4041.
An ooen in tho wire.
GRN/RED Shift lever in @.
G R N
Shift lever in [.
GRN/BLU Shift lever in E.
GRN/YEL Shift lever in @.
LT GRN/
W H T
Shift lever in [.
4
RED and
RED/BLK
Combination light switch
ON and dash lights
brightness control dial or
full bright.
Check for voltage between
RED/BLK and RED terminals:
There should be battery
voltage.
. Faulty dash lights brightness con-
trol system.
. An open in the wire.
GBN/ORN lgnition switch ON and
shift lever in any Posi-
tion except @.
Check for voltage to ground:
There should be bsttery
voltage fof two seconds after
the ignition switch is tutned
ON, and less than 1 V two
seconds later.
. F8ulty transmission control module
( T C M ) .
. An open in the wire.
6
YE L'
lgnition switch ON and
shift lever in any posa-
tion except E.
Check for voltage to ground:
There should be less than 1 V
tor two seconds after the igni-
tion switch is turned ON, 8nd
more than 5 V two seconds
later.
. Fsulty TCM.
. An open in the wire.
7 LT GRN
lgnition switch ON.
Check for voltage to ground:
There should be more than
1 1 V .
. Faulty ECM or TCM.
. An open in the wire.
Test condition
Tost: Desiled result
Possiblo caus€ il rosult is not obtainod
23-147