1996 ACURA RL KA9 service indicator

Component Locations

ABS CONTROL UNIT

MODULATOR UNIT
SERVICE CHECK CONNECTOR (2P)

ABS INSPECTION CONNECTOR (6P)

RIGHT-REAR WHEEL SENSOR

RIGHT-FRONT WHEEL

SENSOR CONNECTOR

RIGHT-FRONT

WHEEL SENSOR
LEFT-REAR WHEEL

SENSOR CONNECTOR

LEFT-REAR

WHEEL SENSOR

RIGHT-REAR WHEEL

SENSOR CONNECTOR

UNDER-HOOD

RELAY BOX B

UNDER-HOOD

FUSE/RELAY BOX
UNDER-DASH FUSE/RELAY BOX

LEFT-FRONT WHEEL SENSOR

LEFT-FRONT WHEEL

SENSOR CONNECTOR

GAUGE ASSEMBLY:

ABS INDICATOR LIGHT

UNDER-DASH FUSE/RELAY BOX:

METER

(7.5 A) FUSE
ABS B2

(15 A) FUSE

ABS B1

(20 A) FUSE

METER

(15 A) FUSE
BATTERY

(120 A) FUSE

ABS MOTOR (40 A) FUSE

IG SW (50 A) FUSE

UNDER-HOOD RELAY BOX C:

REAR FAIL-SAFE RELAY

METER RELAY

FRONT FAIL-SAFE RELAY
ABS
UNIT

(7.5 A) FUSE
STOP/HORN

(ISA) FUSE
ABS PUMP

MOTOR RELAY
UNDER-HOOD FUSE/RELAY BOX:

ECU

(20 A) FUSE

R/C MIRROR

(7.5 A) FUSEProCarManuals.com

DTC Indication Pattern (When the ABS control unit detected a problem three times.):

Turn the ignition switch ON (II). The ABS indicator light comes on for 2 seconds to check the bulb.

The ABS control unit indicates the DTC 3 times.

If you miscount the blinking frequency or if you recheck the blinking frequency, turn the ignition switch OFF then

turn it ON (II) to cycle the ABS indicator light again.

4. Remove the SCS service connector.

NOTE: The Malfunction Indicator Lamp (MIL) will stay on after the engine is started if the SCS service connector is

connected.

5. Remove the ABS B2 (15 A) fuse in the under-hood fuse/relay box for at least 3 seconds to erase the ABS control unit's

memory.ProCarManuals.com

Component Locations

SERVICE CHECK CONNECTOR (2P)

RIGHT-REAR WHEEL SENSOR

ABS CONTROL UNIT

MODULATOR UNIT

LEFT-REAR

WHEEL SENSOR

RIGHT-FRONT

WHEEL SENSOR

UNDER-HOOD RELAY BOX C
UNDER-DASH FUSE/RELAY BOX

LEFT-FRONT WHEEL SENSOR

GAUGE ASSEMBLY
UNDER-HOOD FUSE/RELAY BOX

ABS INDICATOR

UNDER-DASH FUSE/RELAY BOX

R/C MIRROR

(7.5 A) FUSE

METER

(7.5 A) FUSE
STOP/HORN

(15 A) FUSE

ABS
UNIT

(7.5 A) FUSE

ABS

(20 A) FUSE
ABS PUMP

MOTOR RELAY

METER

(15 A) FUSE
BATTERY

(120 A) FUSE

ABS MOTOR

(40 A) FUSE

IG SW (50 A) FUSE

UNDER-HOOD RELAY BOX C

GAUGE RELAY

FAIL-SAFE RELAY
UNDER-HOOD FUSE/RELAY BOXProCarManuals.com

Component Locations

SERVICE CHECK CONNECTOR (2P)

ABS CONTROL UNIT

ECT SENSOR

TCS CONTROL VALVE

SENSOR

RIGHT-FRONT

WHEEL SENSOR

TCS CONTROL

VALVE ACTUATOR
LEFT-REAR

WHEEL SENSOR

GAUGE ASSEMBLY

ECU (PCM) (20 A) FUSE

UNDER-HOOD FUSE/RELAY BOX

BATTERY (120 A) FUSE
UNDER-HOOD RELAY BOX C

FAIL-SAFE RELAY

IG SW (50 A) FUSE

METER (15 A) FUSE
METER RELAY
TCS (15 A) FUSE
STOP/HORN

'96 - 98 models: (15 A) FUSE

'99 model: (20 A) FUSE
UNDER-HOOD FUSE/RELAY BOX
UNDER-HOOD RELAY BOX C

LEFT-FRONT WHEEL SENSOR
POWERTRAIN

CONTROL MODULE (PCM)
STEERING ANGLE SENSOR

RIGHT-REAR WHEEL SENSOR

TCS CONTROL UNIT

TCS/CRUISE SWITCH

UNDER-DASH FUSE/RELAY BOX

UNDER-DASH FUSE/RELAY BOX

METER (7.5 A) FUSE

TCS INDICATOR LIGHTProCarManuals.com

TCS CONTROL UNIT 20P CONNECTOR

Wire side of female terminals

VB: Battery Voltage

Terminal

number

1

2

4

5

6

9

10

11

12

13

14

15

16

17

20
Wire

color

BLK/YEL

GRN/RED

BLU

PNK/BLU

BLK/WHT

BLK

BRN/WHT

GRN/WHT

BLU

GRN/ORN

BLK/ORN

BRN/BLK

WHT/BLU

BLU/GRY

GRN

BRN
Terminal sign

(Terminal name)

IG1

(Ignition 1)

PARK

(Parking)

SCS

(Service check

signal)

STR-GND

(Steering ground)

AT-SHIFT

(AT shift)

FSR

(Fail-safe relay)

PMG

(Power motor

Ground)

VPM

(Voltage power

motor)

STOP

(Stop)

NEP (Engine

speed pulse)

BARO

(Barometric)

TC-FC

(Traction control

fuel cut)

LG2

(Logic ground 2)

STR-VCC (Steer-

ing power supply)

WARN2

(Warning 2)

SH-MOT

(Shield motor)

MOT +

(Motor +)

MOT-

(Motor -)
Description

Detects ignition switch

IG1 signal

Detects parking brake

switch signal

Detects service check

connector signal

(Diagnostic trouble

code indication)

Ground for the steering

angle sensor

Detects A/T shift posi-

tion signal

Drives fail-safe relay

Power ground for the

TCS control valve

actuator motor

Power source for the

TCS control valve

actuator motor

Detects brake pedal

position switch signal

Detects engine speed

signal

Detects barometric

sensor signal

TCS Fl, Fuel cut

(torque down) signal

Ground for the logic

circuit

Power source for the

steering angle sensor

Drives TCS indicator light

(The indicator light comes

on by the self-bias)

Shield for the TCS con-

trol valve actuator motor

Drives TCS control

valve actuator motor

Drives TCS control

valve actuator motor
Measurement

terminals

1-GND

2

3-GND

4-GND

5-GND

6-GND

9-GND

10-GND

11-GND

12-GND

13-GND

14-GND

15-GND

16-GND

17-GND

19-20

20-19
Voltage

Conditions

(Ignition Switch ON (II))

Depress the parking

brake pedal.

Release the parking

brake pedal.

SCS service connector

connected.

SCS service connector

disconnected.

Shift the transmission

to position, then

start the engine.

Start the engine.

Start the engine.

Brake pedal depressed.

Brake pedal released.

Engine idling

TCS is functioning,

(maximum fuel cut)

TCS is not functioning.

Indicator light ON

Indicator light OFF

TCS is functioning.

TCS is not functioning.

TCS is functioning.

TCS is not functioning.
Output

voltage

VB

Below 0.6 V

VB

0V

5V

Below 0.3V

About 4V

(5V 0V)

VB

1.5V

Below 0.3 V

0V

VB

VB

0V

About 6V

(12V
0V)

About 3 V

About 1.5V

About 4.5 V

(5 V,
PWM)

Below 0.3V

About 5 V

About 2 V

VB

VB

0V

VB

0VProCarManuals.com

Diagnostic Trouble Code (DTC)

DTC Erasure

1. Press the parking brake pedal.

2. Push and hold the TCS switch, then turn the ignition switch ON (II).

3. Hold the TCS switch pushed for 4 to 6 seconds, then release the TCS switch.

4. After 3 seconds, the TCS indicator light should go off and blink 2 times, then stay on. This means that the DTC is

erased.

NOTE:

Always follow these steps exactly. If you connect the SCS service connector and/or release the parking brake pedal dur-

ing these steps, the DTC will not be erased.

If the TCS indicator light blinks repeatedly, replace the TCS control unit.

Standard Indication Pattern

Abnormal Indication Pattern

Light blinks repeatedlyProCarManuals.com

Component Locations

SERVICE CHECK CONNECTOR (2P)

RIGHT-REAR WHEEL SENSOR

VSA CONVERTER UNIT

VSA MODULATOR

CONTROL UNIT

TCS CONTROL

VALVE SENSOR

RIGHT-FRONT

WHEEL SENSOR
PRECHARGE

PUMP MOTOR
STEERING

ANGLE SENSOR

YAW RATE/LATERAL

ACCELERATION SENSOR

TCS CONTROL VALVE

ACTUATOR

UNDER-HOOD

RELAY BOX C
UNDER-HOOD

FUSE/RELAY BOX
VSA OFF SWITCH

UNDER-DASH FUSE/RELAY BOX

LEFT-FRONT WHEEL SENSOR
LEFT-REAR

WHEEL SENSOR

GAUGE ASSEMBLY

ABS INDICATOR

VSA SYSTEM INDICATOR
UNDER-HOOD FUSE/RELAY BOX

STOP/HORN

(20 A) FUSE

BRAKE SYSTEM INDICATOR

VSA ACTIVATION INDICATOR

UNDER-DASH FUSE/RELAY BOX
TCS

(15 A) FUSE

VSA

(20 A) FUSE

METER

(15 A) FUSE

ECU

(20 A) FUSE

METER

(7.5 A) FUSE
BATTERY

(120 A) FUSE

VSA MOTOR (40 A) FUSE

IG SW (50 A) FUSE

UNDER-HOOD RELAY BOX C

FAIL-SAFE RELAY

GAUGE RELAY
PCM

R/C MIRROR

(7.5 A) FUSEProCarManuals.com

Precharge Brake Line Bleeding

1. Connect the SCS service connector to the service check connector (2P) under the glove box.

2. Press the parking brake pedal.

3. Press the VSA off switch, and hold it.

4. Turn the ignition switch ON (II).

5. Release the VSA off switch after the VSA activation indicator goes off twice.

6. Press the VSA off switch after the VSA activation indicator comes on.

7. Release the VSA off switch after the VSA activation indicator goes off.

8. Press the VSA off switch after the VSA activation indicator starts blinking.

9. Release the VSA off switch after the VSA activation indicator stops blinking.

10. Turn the ignition switch OFF, then repeat steps 2 through 10 for 4 times.ProCarManuals.com