Honda Acura NSX 1991 Service Manual page 1141

Test condition
No. Wire
Under all conditions.
1 BLK
Ignition switch ON.
2 YEL
Shift lever position in P.
LT BLU Shift lever position in R.
Shift lever position in N.
GRN
3 Shift lever position in 3.
Shift lever positon in 2.
LT GRNI Shift lever position in 1.
WHT
Shift lever position in D.
4 GRN/BLU
Lighting switch ON and
5 dashlight brightness
and RED
trol dial on full bright.
Ignition switch ON, shift
lever positon in 2 or 3
and D switch ON.
6
Ignition switch ON, shift
lever position in 2 or 3
7 and D switch ON.
Ignition switch ON.
8 LT GRN
Test: desired result
Check for continuity to ground:
should be continuity.
Check for voltage to ground:
should be battery voltage.
Check for continuity to ground:
should be continuity.
Check for continuity to ground:
should be continuity.
Check for voltage between
con-
should be battery voltage.
Check for voltage to ground:
should be about 5 V.
Check for voltage to ground:
should be battery voltage.
Check for voltage to ground:
should be about 5 V.
Possible cause (if result is not obtained)
Poor ground (G401, G402).
l
An open in the wire.
l
Blown No. 5 (IO A) fuse.
l
An open in the wire.
l
Faulty shift position console switch
l
Poor ground (G401, G402).
l
An open in the wire.
l
Faulty shift position console
l
switch.
Faulty A/T control system.
l
Poor ground (G401, G402).
l
An open in the wire.
l
Faulty dashlight brightness control
l
system.
An open in the wire.
l
Faulty D switch.
l
Faulty shift position consle
l
switch.
Faulty A/T control system.
l
An open in the wire.
l
Faulty D switch.
l
Faulty shift position console
l
switch.
Faulty A/T control system.
l
An open in the wire.
l
Faulty PGM-FI ECU and A/T control
l
unit.
An open in the wire.
l