1996 ACURA RL KA9 relay

Car Status

This screen is used to confirm that navigation unit is

properly receiving input signals. Signals equal to (0) are

OFF, and signals equal to (1) are ON.If the value on the

display does not match the actual vehicle status, then

check the wire carrying the signal.

• CHG and CHG(CAN) are not used for this model.

• VSP-Vehicle Speed Pulse from PCM

(Pin 6 of C-connector)

a) OFF (0) when vehicle is not moving

b) ON (1) when vehicle is moving

The VSP comes from the PCM as a dedicated signal.

Internally, the navigation unit compares the actual VP on

the map against street data to adjust the pulse to speed

scaling factor. As this scaling factor becomes more

accurate, the "Level" gradually increases from 0 to 10

(see the Tire Calibrate diagnostic screen).

• BACK-Reverse indication from reverse relay

(Pin 5 of C-connector)

a) OFF (0) when shift lever is in any position other

than reverse

b) ON (1) when shift lever is in reverse

The Back signal is used by the navigation unit to allow

the map screen to show the VP moving backwards when

in reverse. This signal is needed because the Speed

Pulse has no direction indication.
• ILL-lllumination Indication

(Pin 5 of navigation unit A-connector)

a) OFF (0) when parking lights, or headlights are off

b) ON (1) when parking lights, or headlights are on

This signal is used by the navigation unit to determine

whether to put the navigation screen into the Day or

Night brightness mode. (Setup screen 1)

• DVD Lid-senses if DVD door is open

a) (Close) when door is closed

b) (Open) when door is open

The navigation unit has a micro switch to detect this. If

open is indicated when the door is closed, replace the

navigation unit.

• PC Card Lid-Senses if PC Card door is open

a) (Close) when door is closed

b) (Open) when door is open

The navigation unit has a micro switch to detect this. If

open is indicated when the door is slid shut, then

replace the navigation unit. This slot is for insertion of

PC Flash memory cards for gathering diagnostic infor-

mation. This is for factory use only.ProCarManuals.com

Starting Syste m
Componen t Locatio n Inde x
STARTE R CU T RELA YWire colors : BLK/WHT ,
BLK/WHT , BLK/WH T an d WHT/RE D
UNDER-DAS HFUSE/RELAY BO X
STARTE RTest, pag e 4- 5
Replacement , pag e 4- 6
Overhaul , pag e 4- 8
Solenoi d Test , pag e 4- 9Reassembly , pag e 4-1 4
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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 :
Use a starte r syste m tester .
Connec t an d operat e th e equipmen t i n accordanc e
wit h th e manufacturer' s instructions .
Tes t an d troubleshoo t a s described .
Alternat e Procedure :
Use followin g equipment :
— Ammeter , 0 - 40 0 A
— Voltmeter , 0 - 2 0 V (accurat e withi n 0. 1 volt )
— Tachometer , 0 - 1,20 0 rp m
Hoo k u p a voltmete r an d ammete r a s shown .
NEGATIV E
TERMINA L
NOTE: Afte r thi s test , o r an y subsequen t repair , rese t
th e PC M to clea r an y code s (se e sectio n 11 ).
Chec k th e Starte r Engagemen t
1 . Disconnec t th e 8 P an d 6 P connecto r fro m th e ICM .
6P CONNECTO R
ICM
8P CONNECTO R
2.
3.
Wit h th e shif t leve r i n o r , turn th e ignitio n
switc h to STAR T (III) .
Th e starte r shoul d cran k th e engine . I f th e starte r
doe s no t cran k th e engine , g o t o ste p 3 .
I f i t crank s th e engin e erraticall y o r to o slowly , g o
t o "Chec k fo r Wea r an d Damage " o n th e nex t
page .
Chec k th e battery , batter y positiv e cable , ground ,
starte r cu t relay , an d th e wir e connection s fo r loose -
nes s an d corrosion . Tes t again . I f th e starte r stil l doe s
no t cran k th e engine , g o to ste p 4 .
Unplu g th e connecto r (BLK/WH T wire ) fro m th e
starter . Mak e sur e th e shif t leve r i s i n o r , then
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 .
S (SOLENOID )
TERMINA L
BLK/WH T
WIRE
If th e starte r stil l doe s no t cran k th e engine , remov e
it , an d diagnos e it s interna l problem .
I f th e starte r crank s th e engine , g o t o ste p 5 an d
continu e th e test .
5 . Chec k th e ignitio n switch .
6 . Chec k th e starte r cu t relay .
7. Chec k fo r a n ope n i n th e wir e betwee n th e ignitio n
switch an d starter .
8 . Chec k th e immobilize r syste m (se e sectio n 23 ).
4 .
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Cruise Control

Control Unit Input Test (cont'd)

Cavity Wire
Test condition
Test: Desired result

Possible cause if result is not obtained

3

13

7

6

14

12

2

5

10

9

11

1
BLK

LT GRN

LT GRN/BLK

LT GRN/RED

PNK

BLU/WHT

GRY

GRN/WHT

BLU/YEL

BRN

BRN/BLK

BRN/WHT
Under all conditions

Ignition switch ON (II) and

main switch ON

Resume button pushed

Cancel button pushed

Set button pushed

Cancel button pushed

Shift lever in , or

Ignition switch ON (II), and

main switch ON; raise the

front of the vehicle, and rotate

one wheel slowly while

holding the other wheel.

Ignition switch ON (II), main

switch ON; brake pedal

pressed, then released

Brake pedal pressed then

released

Ignition switch ON (II)

Under all conditions

Under all conditions

Under all conditions
Check for continuity to ground:

There should be continuity.

Check for voltage to ground:

There should be battery voltage.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 7, there

should be no voltage on terminal No. 6.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 7, there

should be voltage on terminal No. 6.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 6, there

should be no voltage on terminal No. 7.

Check for voltage to ground:

There should be battery voltage.

When testing terminal No. 6, there

should be voltage on terminal No. 7.

Check for continuity to ground:

There should be continuity.

NOTE: There should be no continuity

when the shift lever is in other positions.

Check for voltage between the

BLU/ WHT and BLK terminals:

There should be cycle 0 - 5 V or

battery voltage.

Check for voltage to ground:

There should be 0 V with the pedal

pressed, and battery voltage with

the pedal released.

Check for voltage to ground:

There should be battery voltage with

the pedal pressed, and 0 V with the

pedal released.

Attach to ground:

The cruise light in the gauge assembly

should come on.

Check for resistance to ground:

There should be 80 -120

Check for resistance to ground:

There should be 70 -110

Check for resistance to ground:

There should be 40 - 60
• Poor ground (G401, G402)

• An open in the wire

• Blown No. 20 (20 A) fuse in the

under-dash fuse/relay box

• Faulty main switch

• An open in the wire

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Short between LT GRN/BLK and

LT GRN/RED wires

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Short between LT GRN/BLK and

LT GRN/RED wires

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty horn relay

• Faulty set/resume/cancel switch

• Faulty cable reel

• An open in the wire

• Faulty A/T gear position switch

• Poor ground (G401, G402)

• An open in the wire

• Faulty vehicle speed sensor (VSS)

• An open in the wire

• Short to ground

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty brake switch

• An open in the wire

• Blown No. 39 (15 A) fuse in the

under-hood fuse/relay box

• Faulty brake switch

• An open in the wire

• Blown bulb

• Faulty gauge circuit

• An open in the wire

• Faulty actuator solenoid

• An open in the wireProCarManuals.com

12. Remov e th e vacuu m hose , the n remov e th e clam p
fro m th e under-hoo d fuse/rela y box .
VACUU MHOSE CLAM
P
13. Remov e th e alternato r an d batter y cable s fro m th e
under-hoo d fuse/rela y box , the n remov e th e under -
hoo d fuse/rela y box .
ALTERNATO RCABLE
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
BATTER YCABLE
UNDER-HOO DFUSE/RELAYBOX
14. Disconnec t th e engin e wir e harnes s connecto r o n
th e lef t sid e o f th e engin e compartment .
15 . Remov e th e connecto r an d engin e wir e harnes s
clamp .
CONNECTO R
ENGINE WIR E
HARNES S
CONNECTO R
CLAMP
6 x 1. 0 m m12 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
16. Reliev e fue l pressur e b y loosenin g th e servic e bol t
o n th e fue l filte r abou t on e tur n (se e sectio n 11 ).
D o no t smok e whil e workin g o n th e
fue l system . Kee p ope n flam e an d spark s awa y fro m
th e wor k area . Drai n fue l onl y int o a n approve d
container.
17. Remov e th e fue l fee d hos e an d fue l retur n hose .
SERVIC E BOL T
1 2 N- m (1. 2 kgf-m , 8. 7 Ibf-ft )
WASHE R
Replace .27 N- m (2. 8 kgf-m ,20 Ibf-ft )
WASHER S
Replace .
FUE L FEE D
HOS E
FUEL RETUR N
HOS E
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12. Remov e th e vacuu m hoses , the n remov e th e clam p
fro m th e under-hoo d fuse/rela y bo x (se e pag e 5-5 ).
13 . Remov e th e batter y cable s fro m th e under-hoo d
fuse/rela y box , the n remov e th e under-hoo d fuse /
rela y box .
UNDER-HOO DFUSE/RELAYBOX
14. Reliev e fue l pressur e b y loosenin g th e servic e bol t
o n th e fue l filte r abou t on e tur n (se e sectio n 11 ).
D o no t smok e whil e workin g o n th efue l system . Kee p ope n flam e an d spark s awa y fro m
th e wor k area . Drai n fue l onl y int o a n approve d
container.
15. Remov e th e fue l fee d hos e an d fue l retur n hose .
FUEL RETUR NHOSEFUEL FEE D
HOS E
FUE L PULSATIO N
DAMPE R
2 2 N- m (2. 2 kgf-m , 1 6 Ibf-ft )
WASHER SReplace.
16. Remov e th e evaporativ e emissio n (EVAP ) caniste r
hos e an d brak e booste r vacuu m hose .
BRAK E BOOSTE RVACUUM HOS E
EVA P CONTRO L
CANISTE R HOS E
17. Disconnec t th e connector , the n remov e th e contro l
box.
6 x 1. 0 m m12 N- m (1. 2 kgf-m ,
8. 7 Ibf-ft )
CONNECTO R CONTRO
L
BOX
BATTER YCABLE
BATTER YCABLE6 x 1. 0 m m12 N- m (1. 2 kgf-m ,8.7 Ibf-ft )
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Fan Controls

Troubleshooting

NOTE: The numbers in the table show the troubleshooting sequence.

G301

G302

G301

G302

G402

G402

Fan Control Module Terminals

FAN CONTROL

MODULE
Terminal Wire
Connects to

1

2

3

4

5

6

7

8

9

10

11

12
GRN/RED

BLK

RED/WHT

LT GRN/BLK

GRN/BLK

BLK/YEL

PNK

BLU/ORN

BLU/GRN
A/C pressure switch

Not used

Ground

A/C pressure switch

Radiator fan relay (Coil )

Radiator fan control sensor

IG2 (Main power supply)

PCM

Not used

Condenser fan relay (Coil )

Not used

Radiator fan control sensor
PCMProCarManuals.com

PGM-FI Syste m
MIL Circui t Troubleshootin g (cont'd )
(From pag e 11-63 )
I s th e fus e OK ?
NO
Is th e fus e OK ?
YES
Chec k fo r a n ope n i n th e wire s
(IG P lines) :
1 . Disconnec t th e fue l injecto r
an d IA C valv e connectors .
2 . Tur n th e ignitio n switc h O N (II) .
3 . Measur e voltag e betwee n
bod y groun d an d th e PC M
connecto r terminal s A1 3 an d
B1 individually .
Is ther e batter y voltage ?NO
YE S
— Repai r shor t i n th e wir e
betwee n No . 6 EC U (PCM ) (2 0
A ) fus e an d PGM-F I mai n
relay.— Repai r shor t i n th e wir e
betwee n PGM-F I mai n rela y
an d th e PCM , fue l injectors ,
o r IA C valve .
— Repai r shor t i n th e wir e
betwee n fue l injector s an d
IA C valve .
— Replac e No . 6 EC U (PCM ) (2 0
A) fuse .
— Repai r shor t i n th e wir e
betwee n No . 2 5 IG COI L (3 0 A )
fus e an d PGM-F I mai n relay .
— Replac e No . 2 5 IG COI L (3 0 A )
fuse .PCM CONNECTOR SA (26P)
— Repai r ope n i n th e wire(s )
betwee n th e PC M (A13 , B9 )
an d PGM-F I mai n relay .
— Chec k fo r a poo r connectio n
o r loos e wire s a t th e PGM-F I
mai n relay .
— Tes t th e PGM-F I mai n rela y
(se e pag e 11-146 ).
— Repai r shor t o r ope n i n th e
wir e betwee n th e immobilize r
uni t an d PCM . Wir
e sid e o f femal e terminal s
(T o pag e 11-65 )
NO
YE S
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