1991 ACURA NSX jump cable

Transmission Assembl y
Removal
Make sur e lift s ar e place d properly , an d
hois t bracket s ar e attache d t o correc t position s (se e
sectio n 1 ).
CAUTION : Us e fende r cover s t o avoi d damagin g
painte d surfaces .
1 . Chec k an d recor d th e rea r whee l alignmen t (se e
sectio n 18 ).
2 . Disconnec t th e batter y negativ e (- ) an d positiv e (+ )
cable s fro m th e battery .
3 . Drai n transmissio n oil . Reinstal l th e drai n plu g wit h
a ne w washer .
Corrosio n resistan t bolt/nu t
4. Remov e th e stru t bar .
5 . Remov e th e ai r cleane r assembly .
6 . Remov e th e connector s fro m th e contro l box , an d
remov e th e contro l box .
CAUTION : D o no t remov e th e vacuu m tube s fro m
th e contro l box .
7 . Remov e th e wir e harnes s holder , jumpe r connecto r
an d transmissio n ground cable.
8 . Disconnec t th e back-u p ligh t switch , neutra l posi -
tio n switch , differentia l spee d sensor , an d vehicl e
speed senso r (VSS ) connectors .
9. Disconnec t th e starte r moto r cables , the n remov e
th e starte r motor .
10 . Remov e th e transmissio n mount .
11 . Remov e th e tw o transmissio n housin g bolts .
TRANSMISSIO N
HOUSIN G BOLT S
CONTROL BO X
BACK-U PLIGHT SWITC H
CONNECTO R
WIR E HARNES S HOLDE R
STARTER MOTOR
CABLES
NEUTRA L
POSITIO N
SWITCHCONNECTO R
DIFFERENTIA L
SPEE D SENSO R
VEHICL E SPEE D
SENSO R (VSS )
CONNECTO R
JUMPERCONNECTO R
TRANSMISSIO N
MOUNTING BOLT S
TRANSMISSIO NHANGER
STARTE RMOTOR MOUNTIN
G TRANSMISSIO N
BOLT S MOUN T
TRANSMISSIO
N
GROUN D
CABLE
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28. Instal l th e transmissio n moun t an d tw o transmissio n
housin g mountin g bolts .
29 . Instal l th e starte r motor , an d connec t th e starte r
motor cables .
NOTE: Whe n installin g th e starte r moto r cable ,
mak e sur e tha t th e crimpe d sid e o f th e rin g termi -
nal s facin g ou t (se e sectio n 23 ).
30 . Instal l th e transmissio n groun d cabl e an d jumpe r con -
nector , an d connec t th e back-u p ligh t switch , neu -
tra l positio n switch , differentia l spee d sensor , an d
vehicl e spee d senso r (VSS ) connector . 31
. Instal l th e contro l box , an d connec t th e contro l bo x
connectors .
32. Instal l th e ai r cleane r assembly .
33. Instal l th e stru t bar .
34 . Refil l th e transmissio n wit h oi l (se e pag e 13-3 ).
35 . Connec t th e batter y positiv e ( + ) an d negativ e (- )
cable s t o th e battery .
36 . Inspec t th e rea r cambe r (se e sectio n 18 ).
37 . Chec k th e clutc h operation .
38 . Shif t th e transmission , an d chec k fo r smoot h opera -
tion.
Corrosio n resistan t bolt/nu tTRANSMISSIO N HOUSIN GMOUNTING BOLT S12 x 1.2 5 mm65 N- m (6. 5 kg-m , 4 7 Ib-ft )
CONTROL BO X
BACK-U P LIGH TSWITC HCONNECTO R
WIR E
HARNES S
HOLDE R
NEUTRA L
POSITIONSWITCHCONNECTO R
STARTE R
MOTORCABLE S DIFFERENTIA
L
SPEE D SENSO R
VSSCONNECTO R
JUMPE R
CONNECTO R
TRANSMISSIO N MOUNTIN GBOLT
TRANSMISSIO N MOUNTIN GBOLTS10 x 1.2 5 mm60 N- m (6. 0 kg-m , 4 3 Ib-ft )
12 x 1.2 5 mm95 N- m (9. 5 kg-m . 6 9 Ib-ft )
12 x 1.2 5 mm75 N- m (7. 5 kg-m , 5 4 Ib-ft )
12 x 1.2 5 mm75 N- m (7. 5 kg-m , 5 4 Ib-ft )
TRANSMISSIO NGROUND CABL E
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Diagnostic Trouble Code (DTC):

1. Stop the engine.

2. Disconnect the service check connector from the connector cover located under the glove box.

Connect the two terminals of the service check connector with a jumper wire.

3. Turn the ignition switch on, but do not start the engine.

4. Record the blinking frequency of the ABS indicator light.

The blinking frequency indicates the diagnostic trouble code (DTC).

CAUTION: Before starting the engine, disconnect the jumper wire from the service check connector, or else the

Malfunction Indicator Lamp (MIL) will stay on with the engine running.

NOTE:

• The ABS control unit can indicate three DTCs (one, two or three problems).

• If the ABS indicator light does not light, see Troubleshooting of ABS Indicator Light Circuit page 19-44.

• If you miscount the blinking frequency, turn the ignition switch off, then turn on to blink the ABS indicator light

again.

• After the repair is completed, disconnect the ABS 2,3 (20A) fuse for at least three seconds to erase the ABS

control unit's memory. Then turn the ignition key on again and recheck.

• The memory is erased if the connector is disconnected from the ABS control unit or the ABS control unit is re-

moved from the body.

• After recording the main and sub-code (if applicable), refer to the Symptom-to-System Chart.ProCarManuals.com

Starting Syste m
Starter Tes t
NOTE : Th e ai r temperatur e mus t b e betwee n 5 9 an d
100° F (1 5 an d 38°C ) befor e testing .
Recommende d Procedure :
• Us e a starte r syste m tester .
• Connec t an d operat e th e equipmen t i n accor -
danc e wit h manufacturer' s instructions .
Alternate Procedure :
• Us e th e followin g equipment :
- Ammeter, 0-400 A
- Voltmeter , 0-2 0 V (accurat e withi n 0. 1
volt )
- Tachometer , 0—120 0 rp m
• Hoo k u p voltmete r an d ammete r as shown .
NEGATIV E CABL E
POSITIV ECABLE
1. Disconnec t th e No . 1 3 (3 0 A ) fus e fro m th e engin e
compartmen t fuse/rela y box .
No. 1 3 (3 0 A )FUS E
2. Chec k th e starte r engagement :
Depres s th e clutc h peda l al l th e wa y (M/T ) o r shif t
to positio n (A/T) , an d tur n th e ignitio n
switch to "Star t (III)" . Th e starte r shoul d cran k th e
engine .
NOTE : O n car s equippe d wit h manua l transmis -
sion , th e engin e wil l no t cran k unles s th e clutc h
peda l i s full y depressed .
• I f th e starte r stil l doe s no t cran k th e engine ,
chec k th e battery , batter y positiv e cable ,
groun d an d th e wir e connection s fo r loosenes s
o r corrosion .
• Tes t again .
I f th e starte r stil l doe s no t cran k th e engine ,
bypas s th e ignitio n switc h circui t a s follows :
Unplu g th e connecto r (BLK/WH T wire ) fro m th e
starter . Connec t a jumpe r wir e fro m th e batter y
positiv e (+ ) termina l t o th e solenoi d terminal .
Th e starte r shoul d cran k th e engine .
SOLENOI D TERMINA L
BLK/WHTWIRE
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Charging System

Troubleshooting

Alternator/Regulator Test

Use the SUN VAT-40 (or equivalent) tester.
2. Attach the negative tester cable and the voltmeter

negative lead to the top of the intake manifold.

LOAD ADJUSTER

(CARBON PILE)
FULL FIELD

LEAD (BLU)

VOLTMETER

NEGATIVE

LEAD (BLK)

VOLT

SELECTOR

FIELD

SELECTOR

INDUCTIVE

PICK-UP

(GRN)
POSITIVE

CABLE (RED)
NEGATIVE

CABLE (BLK)
VOLTMETER

POSITIVE

LEAD (RED)

1. Attach the positive tester cable and the voltmeter

positive lead to the jump start terminal in the

engine compartment fuse/relay box.

POSITIVE CABLE

VOLTMETER

POSITIVE LEAD

JUMP

START

TERMINAL

- ENGINE COMPARTMENT

FUSE/RELAY BOX
VOLTMETER

NEGATIVE LEAD
NEGATIVE CABLE

NEGATIVE MARK

3. Attach the inductive pick-up to the B terminal wire

of the alternator with its arrow pointing away from

the terminal.

NOTE: The arrow must point away from the B

terminal.

INDUCTIVE PICK-UP

ARROW
ALTERNATOR

B TERMINAL

ALTERNATOR
TEST SELECTOR

SWITCHProCarManuals.com

Transmission Assembly

Removal

CAUTION: Use fender covers to avoid damaging

painted surfaces.
1. Check and record the rear wheel alignment (see section 18).
2. Disconnect the battery negative (—), and positive (+) cables from the battery.
3. Drain transmission oil. Reinstall the drain plug with a new washer.
Corrosion resistant bolt/nut 4. Remove the strut bar.
5. Remove the air cleaner assembly.
6. Remove the connectors from the control box and remove the control box.
CAUTION: Do not remove the vacuum tubes from
the control box.
7. Remove the wire harness holder, jumper connector and transmission ground cable.
8. Disconnect the switch connectors, then remove the back-up light switch and neutral positionswitch.
9. Disconnect the starter motor cables, then remove the starter motor.
10. Remove the transmission mount.
11. Remove the two transmission housing bolts.
TRANSMISSION HOUSING BOLTS

BACK-UP

LIGHT SWITCH

CONNECTOR

WIRE HARNESS HOLDER

STARTER MOTOR

CABLES
NEUTRAL

POSITION
SWITCH

CONNECTOR

STARTER
MOTOR
TRANSMISSION

GROUND

CABLE

TRANSMISSION
MOUNT
MOUNTING

BOLTS
TRANSMISSION

HANGER
TRANSMISSION
MOUNTING BOLTS
JUMPER

CONNECTOR

VEHICLE SPEED

SENSOR (VSS)

CONNECTOR

CONTROL BOX

Make sure lifts are placed properly, and

hoist brackets are attached to correct position (see sec-

tion 1).ProCarManuals.com

28. Install the transmission mount and two trans-

mission housing mounting bolts.

29. Install the starter motor and connect the starter
motor cables.NOTE: When installing the starter motor cable,
make sure that the crimped side of the ring ter-
minals facing out (see section 23).
30. Install the transmission ground cable and jumper
connector, and connect the back-up light switch,
neutral position switch and vehicle speed sensor
(VSS) connectors.
Corrosion resistant bolt/nut

TRANSMISSION HOUSING
MOUNTING BOLTS12 x 1.25mm

65 N
.
m (6.5 kg-m, 46 Ib-ft)

BACK-UP LIGHT

SWITCH

CONNECTOR

WIRE
HARNESS

HOLDER

NEUTRAL

POSITION

SWITCH
CONNECTOR

STARTER
MOTOR

CABLES

12 x
1.25
mm

95 N
.
m (9.5 kg-m, 69 Ib-ft)

12 x
1.25
mm

75 N
.
m (7.5 kg-m, 54 Ib-ft)
12 x
1.25
mm

75 N .
m (7.5 kg-m, 54 Ib-ft)

TRANSMISSION

GROUND CABLE
TRANSMISSION MOUNTING

BOLTS

10 x
1.25
mm

60 N .
m (6.0 kg-m, 43 Ib-ft)

JUMPER

CONNECTOR
VSS

CONNECTOR

CONTROL BOX

31. Install the control box and connect the control box
connectors.
32. Install the air cleaner assembly.

33. Install the strut bar.

34. Refill the transmission with oil (see page 13-3).
35. Connect the battery positive (+) and negative (-) cables to the battery.
36. Inspect the rear camber (see section 18).
37. Check the clutch operation.
38. Shift the transmission and check for smooth operation.
TRANSMISSION MOUNTING
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Transmission Assembly

Removal
Make sure lifts are placed properly, and

hoist brackets are attached to correct position, (see

page 1-6).

CAUTION: Use fender covers to avoid damaging

painted surfaces.

1. Check and record the rear camber.
(see section 18).
2. Disconnect the battery negative (-), and positive (+) cables from the battery.
3. Drain transmission oil. Reinstall the drain plug with a new washer.

Corrosion resistant bolt/nut
TRANSMISSION
HOUSING BOLT

BACK-UP

LIGHT SWITCH

CONNECTOR

HARNESS HOLDER

STARTER MOTOR

CABLES

NEUTRAL SWITCH
CONNECTOR

STARTER
MOTOR
MOUNTING

BOLTS

TRANSMISSION

MOUNT

GROUND

CABLE

TRANSMISSION

HANGER
TRANSMISSION

MOUNTING BOLTS
JUMPER

CONNECTOR

CONTROL BOX

SPEED SENSOR

CONNECTOR
4. Remove the strut bar.

5. Remove the air cleaner case.

6. Remove the connectors from the control box and remove the control box.
CAUTION: Do not remove the vacuum tubes from
the control box.
7. Remove the wire harness holder, jumper connector and transmission ground cable.
8. Disconnect the switch connectors, then remove the back-up light switch and neutral switch.
9. Disconnect the starter motor cables, then remove the starter motor.
10. Remove the transmission housing bolts.ProCarManuals.com