Acura NSX 1991 Manual page 858

Main Menu
Back-up Lights
Test
Manual Transmission:
1. If only one back-up right does not go on, check that
bulb in the taillight.
2. If neither back-up light goes on, check the No. 5 (15
A) fuse in the under-dash fuse box.
3. If the fuse and bulbs are OK, disconnect the connec-
tor from the back-up light switch on the transmis-
sion housing.
This washer must
always be replaced
for the switch to
function properly
and to prevent oil
leaks.
B(GRN/BLK)
A(YEL)
4. Check for continuity between the A (YEL) and B
(GRN/BLK) wires with the switch installed. There
should be continuity with the shift lever in reverse.
If there is no continuity, replace the switch.
If there is continuity, but the back-up lights do not
go on, check for:
— Poor ground (G501 '91-'92 Models or
G551 '93-'96 Models)
— An open in the YEL or GRN/BLK wire.
Table of Contents
BACK-UP
LJGHT SWITCH
25 N·m (2.5 kg-m, 18 Ib-ft)
TRANSMISSION HOUSING
Automatic Transmission:
1. If only one back-up light does not go on, check that
bulb in the taillight.
2. If neither back-up light goes on. check the No. 5 (15
A) fuse in the under-dash fuse box.
3. If the fuse and bulbs are OK, disconnect the 12-P
connector from the A/T gear position switch (back-
up light switch).
View from
wire side
A/T GEAR POSITION
SWITCH
4. Check for continuity between the No. 9 and No. 10
terminals. Move the lever back and forth at the
position without touching the push button, and
check for continuity within the range of free play.
If there is no continuity within the range of free
play, adjust the position of the A/T gear position
switch (see page 23-160)
ff there is continuity, but the back-up tights do not
go on, check for:
— Poor ground (G501 '91-'92 Models or
G551 '93-'96 Models )
— An open in the YEL or GRN/BLK wire.
('93-'96) ('91-'92).