service indicator ACURA RL KA9 1996 Service User Guide
[x] Cancel search | Manufacturer: ACURA, Model Year: 1996, Model line: RL KA9, Model: ACURA RL KA9 1996Pages: 1954, PDF Size: 61.44 MB
Page 1151 of 1954
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
Page 1190 of 1954
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
Page 1196 of 1954
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
Page 1199 of 1954
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
Page 1234 of 1954
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
Page 1306 of 1954
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
Page 1792 of 1954
Description
SRS Airbag System - '96 - 98 Models
The SRS is a safety device which, when used in conjunction with the seat belt, is designed to help protect the driver and
front passenger in a frontal impact exceeding a certain set limit. The system consists of the SRS unit (including safing sen-
sor and impact sensor), the cable reel, the driver's airbag, and front passenger's airbag.
Seat Belt Tensioner
The seat belt tensioner is linked with the SRS airbags to further increase the effectiveness of the seat belt. In a front-end
collision, the tensioner instantly retracts the belt firmly to secure the occupants in their seats.
Operation
The main circuit in the SRS unit senses and judges the force of impact and, if necessary, ignites the inflator charges. If battery
voltage is too low or power is disconnected due to the impact, the back-up power circuit will keep voltage at a constant level.
For the SRS to operate:
(1) The impact sensor and safing sensor must activate and send electric signals to the microprocessor.
(2) The microprocessor must compute the signals and send signals to the airbag inflators and seat belt tensioners.
(3) The inflators must ignite and deploy the airbags and activate the tensioners.
Self-diagnosis System
A self-diagnosis circuit is built into the SRS unit; when the ignition switch is turned ON (II), the SRS indicator light comes
on and goes off after about 6 seconds if the system is operating normally.
If the light does not come on, or does not go off after 6 seconds, or if it comes on while driving, it indicates an abnormality
in the system. The system must be inspected and repaired as soon as possible.
For better serviceability, the memory will store the cause of the malfunction, and the data link circuit passes on the infor-
mation from the memory to the data link connector (DLC). This information can be read with the Honda PGM Tester con-
nected to the DLC (16P).ProCarManuals.com