brake sensor SSANGYONG MUSSO 2003 User Guide

FrontRear
Front Rear
SECTION 4F
ANTILOCK BRAKE SYSTEM
TABLE OF CONTENTS
Caution: Disconnect the negative battery cable before removing or installing any electrical unit or when a tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting thiscable will help prevent personal injury and damage to the vehicle. The ignition must also be in LOCKunless otherwise noted.
SPECIFICATIONS
GENERAL SPECIFICATIONS
Application Model
ECUNumber of Pins
Operating TemperatureMotor Operating CurrentSolenoid Coil Resistance External Resistance Air Gap
Number of teeth Description
ABS 5.3 31
-40 ~ +120 °C
Below MAX 40A
1.28K - 1.92K
0.35 - 1.60 mm 0.15 - 1.20 mm 52 52 ABS/ABD 5.3
83
-40 ~ +85 °C
Below MAX 45A
8.04 - 9.04 except AV,
HSV 4.04 - 4.54
1.28K - 1.92K
0.35 - 1.60 mm 0.15 - 1.20 mm
52 52
Hydraulic System
Wheel Speed Sensor Impulse Ring
Specifications . . . . . . . . . . . . . . . . . . . . . . . . 4F-1
General Specifications . . . . . . . . . . . . . . . . . . 4F-1
Schematic and Routing Diagrams . . . . . . . . 4F-2 ABS 5.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-2
ABS/ABD 5.0 . . . . . . . . . . . . . . . . . . . . . . . . . 4F-3
ABS 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-4
ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . 4F-5
Component Locator . . . . . . . . . . . . . . . . . . . 4F-6 ABS, ABS/ABD . . . . . . . . . . . . . . . . . . . . . . . . 4F-6
ABD System Description . . . . . . . . . . . . . . . 4F-7 Self Diagnosis . . . . . . . . . . . . . . . . . . . . . . . 4F-9
ABS, ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . 4F-9
ABS, ABS/ABD 5.0 . . . . . . . . . . . . . . . . . . . . 4F-11
Defect Codes . . . . . . . . . . . . . . . . . . . . . . . . 4F-13
Maintenance and Repair . . . . . . . . . . . . . . 4F-19
On-Vehicle Service . . . . . . . . . . . . . . . . . . . . 4F-19
Wheel Speed Sensor . . . . . . . . . . . . . . . . . . 4F-19
Hydraulic Circuit . . . . . . . . . . . . . . . . . . . . 4F-21 ABS 5.3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4F-21
ABS/ABD 5.3 . . . . . . . . . . . . . . . . . . . . . . . . 4F-24

4F-6 ANTILOCK BRAKE SYSTEM
ABS,ABS/ABD
COMPONENT LOCATOR
1 ABS Hydraulic Unit
2 ABS/ABD Hydraulic Unit
3 Diagnosis Socket
4 Front Wheel Speed Sensor
5 Front Impulse Ring 6 Rear Wheel Speed Sensor
7 Rear Impulse Ring
8 ABS Warning Indicator Light
9 TCS Indicator Light
1 0 ABS/ABD ECU

ANTILOCK BRAKE SYSTEM 4F-13
DEFECT CODES
Description
- Replace the ECU
Check resistance of the wheel speed sensor :1.280K - 1.920K
Check wire for ground and open.
Replace the sensor.
Check resistance of the wheel speed sensor :1.280K - 1.920K
Check wire for ground and open.
Replace the sensor.
Check resistance of the wheel speed sensor :1.280K - 1.920K
Check wire for ground and open.
Replace the sensor.
Check resistance of the wheel speed sensor : 1.280K - 1.920K
Check wire for ground and open.
Replace the sensor.
Check wire for ground and open.
Check connection of the wheel speed sensor connec-
tor and ECU side connector.
Measure air gap between wheel teeth and wheel speed sensor and check installation of wheel tooth.(Standard air gap : 0.35 - 1.60 mm)
Check output voltage of the sensor by rotating the wheel 1/2 - 1 revolution per second and shaking sen- sor wire.
- When measured by multi - meter (AC) :
output voltage > 70 mV
- When measured in oscilloscope :
output voltage 120 mV/P-P
Replace the sensor.
Check wire for ground and open.
Check connection of the wheel speed sensor. con-
nector and ECU side connector.
Measure the air gap between wheel teeth and wheelspeed sensor and check installation of wheel tooth.(Standard air gap : 0.35 - 1.60 mm)
Check output voltage of the sensor by rotating thewheel 1/2 - 1 revolution per second and shaking sen- sor wire.
Defect Code
01 0203 0405 06 07 08 Application
Normal Defective ECUFront/left Wheel SpeedSensor (Wire) Front/right Wheel Speed Sensor (Wire) Rear/left Wheel Speed Sensor (Wire) Rear/right Wheel Speed Sensor (Wire) Front/left Wheel Speed Sensor (Signal) Front/right Wheel Speed Sensor (Signal)

4F-14 ANTILOCK BRAKE SYSTEM
Description
- When measured by multi - meter (AC) : output voltage > 70 mV
- When measured in oscilloscope :
output voltage 120 mV/P-P
Replace the sensor.
Check wire for ground and open.
Check connection of the wheel speed sensor con-
nector and ECU side connector.(Standard air gap : 0.15 - 1.20 mm)
Check output voltage of the sensor by rotating the wheel 1/2 - 1 revolution per second and shaking sen- sor wire.
- When measured by multi - meter (AC) :
output voltage > 70 mV
- When measured in oscilloscope :
output voltage 120 mV/P-P
Replace the sensor.
Check wire for ground and open.
Check connection of the wheel speed sensor con-
nector and ECU side connector.
Measure air gap between wheel teeth and wheelspeed sensor and check installation of wheel tooth.(Standard air gap : 0.15 - 1.20 mm)
Check output voltage of the sensor by rotating thewheel 1/2 - 1 revolution per second and shaking sen- sor wire.
- When measured by multi - meter (AC) :
output voltage > 70 mV
- When measured in oscilloscope : output voltage 120 mV/P-P
Replace the sensor.
Check number of teeth on the wheel rotor and itscondition.
- Number of teeth : 52
Check valve relay voltage.
Check connection of connector and terminals in the
ECU and hydraulic modulator.
Check ground.
Check terminals for open or short.(When connector is removed)
Replace the hydraulic modulator.
Defect Code
09 10
11
12 Application
Rear/left Wheel Speed Sensor (Signal) Rear/right Wheel Speed Sensor (Signal) Wheel Rotor
Valve Relay

4F-16 ANTILOCK BRAKE SYSTEM
Description
Check terminals for open or short. (When connector is removed)
Replace the hydraulic modulator.
Check each valve by using SCANNER's solenoid valve overriding function.
Check connection of connector and terminals in the
ECU hydraulic modulator.
Check terminals for open or short. (When connector is removed)
Replace the hydraulic modulator
Check solenoid internal resistance of the prime(ASV) valve and pilot valve(USV) : 8.04 - 9.04
Check each valve by using SCANNER's solenoid valve overriding function.
Check connection of connector and terminals in the
ECU and hydraulic modulator.
Check terminals for open or short.(When connector is removed)
Replace the hydraulic modulator
Check solenoid internal resistance of the prime(ASV)valve and pilot valve(USV) : 8.04 - 9.04
Check each valve by using SCANNER's solenoid valveoverriding function.
Check connection of connector and terminals in the
ECU and hydraulic modulator.
Check terminals for open or short.(When connector is removed)
Replace the hydraulic modulator
Check each valve by using SCANNER's pump motoroverriding function.
Check resistance between pump motor ground ter-minal and battery negative terminal : total resistanceshould be less than 15 m
Check body ground location.
Check relay supply voltage : IGN on : 11 - 14 V
Relay coil internal resistance : 70 - 80
Replace the hydraulic modulator
Check by using SCANNER's stop lamp switch diag-nosing function from sensor value output function.
Check connection of ECU connector side stop lamp switch terminal.
Check resistance of the stop lamp, switch.
- Each end resistance value of the switch
Application
Rear / Right OUTLET Valve Function and Response of The
Valve Function and Response of The
Valve Motor Relay / Circulation Pump Stop Lamp SwitchDefect Code
20 21 2224 27

ANTILOCK BRAKE SYSTEM 4F-17
Application
Power Voltage
Residual Temperature Measurement (ABD only) Acceleration Sensor Signal (wire)Defect Code
28 29 42Description
when switch knob (planger) is pressed by 3mm :
- Each ends resistance value of the switch when switch knob(plunger) is not pressed : less than 200 m
When brake is applied :
ECU (ABS:No.14, ABD:No.48) terminal 11 - 14 V
or VBattery.When brake is released : ECU (ABS:No.14, ABD:No.48) terminal 0 V
Check battery voltage.
Resistance between ECU (ABD:No.28 & 29,
ABS:No.19) pins and battery negative terminal :
less than 20 m
Resistance between ECU No.1 (ABS:NO.15) pin and
ignition terminal : less than 60 m
Check that normal voltage is applied to ECU
(ABD:No.1, ABS:No.15) pin when ignition switch is turned to "ON" or "OFF".
Check ABS fuses of 15A and 80A.
Replace the ECU.
Check wire (ECU No.50) for open or loose contact.
Check connection between connectors.
Check relevant wires for open or short.(When connector is removed)
Check voltage between ECU side ground (ABD:No.1,
ABS:No.15 pin) and acceleration sensor side ground(ABD:No.1, ABS:No.15 pin / ECU side ABD:No.39, ABS:No.30 pin)
(When connector is installed and power is applied)
- Voltage : less than 0.25 V
Check voltage among related terminals.(When connector is installed and power is applied)
- Voltage between ECU (ABD:No.43, ABS:No.28 pin
and ABD:No.39, ABS:No.30 pin) : 4.75 - 5.25 V
- Signal voltage between ECU (ABD:No.51, ABS:No.10) pin and (ABD:No.39, ABS:No.30) pin : 1.95 V - 3.45 V
(Measure it by laying acceleration sensor horizon- tally and without external force)

4F-18 ANTILOCK BRAKE SYSTEMApplication
Defect Code Description
Check connection between connectors.
Check relevant wires for open or short. (When connector is removed)
Check and replace the acceleration sensor.
Replace the ECU.
Check voltage between ECU side ground (ABD:No.1,ABS:No.15 pin) and acceleration sensor side ground(ABD:No.1, ABS:No.15 pin / ECU side ABD:No.39,ABS:No.30 pin) (When connector is installed and power is applied)
- Voltage : less than 0.25 V
Check voltage among related terminals.(When connector is installed and power is applied)
- Voltage between ECU (ABD:No.51, ABS:No.10
pin and ABD:No39, ABS:No.30) pin: 4.75 - 5.25 V
- Signal voltage between ECU (ABD:No.51, ABS:No.10 pin and ABD:No39, ABS:No.30) pin: 1.95 V - 3.45 V (Measure it by laying acceleration sensor horizon tally and without external force)
43
Acceleration Sensor Signal (Signal)

ANTILOCK BRAKE SYSTEM 4F-19
MAINTENANCE AND REPAIRON-VEHICLE SERVICE
WHEEL SPEED SENSOR
1 Bolt
2 Front Wheel Speed Sensor
3 Knuckle 4 Bolt
5 Rear Wheel Speed Sensor
6 Rear Axle

AUTOMATIC TRANSMISSION 5A-77
Action
Check cable for open / short.
Check connection of other connectors.
Check voltage between terminal 4 and 11 of TCU.
- Standard value : when the A/C compressor is ON : 12V
when the A/C compressor is OFF : 0V
Check cable for open / short,
Check connection of other connectors.
Check voltage between terminal 1 and 12 of TCU.
- Standard value : when the kick down switch is ON : 12V
when the kick down switch is OFF : 0V
Fully depress accelerator pedal for 5 seconds(ignition key is ON).
Release accelerator pedal.
Depress brake pedal and start the engine in ‘P’ position.
Depress brake pedal and idle the engine for 5 seconds in ‘D’
position.
Shift into ‘D’ position and determine fault code for throttle initial-
ization.
Complete the initialization.
Check cable for open / short.
Check connection of other connectors.
Check resistance between terminal 1 and 34 of TCU(when theconnector is disconnected).
- Standard value : 26 - 30
Check solenoid.
Check cable for open / short.
Check connection of other connectors,
Check resistance between terminal 1 and 40 of TCU (when theconnector is disconnected).
- Standard value : 26 - 30
Check solenoid.
Check cable for open / short.
Check connection of other connectors.
Check resistance between terminal 1 and 41 of TCU (when theconnector is disconnected).
- Standard value : 26 - 30
Check solenoid.
Check cable for open / short.
Check connection of other connectors.
Check resistance between terminal 1 and 33 of TCU (when theconnector is disconnected),
- Standard value : 26 - 30
Possible Cause
Air conditioner switch
Kick down switch Pedal
Vehicle ID
VPS offset
Throttle position sensor
initialization
Solenoid 1 Solenoid 2Solenoid 3Solenoid 4
Symptom
P1710 P1712P1713 P1714P1715P1716 P1733 P1734P1735 P1736

5D2-6 TRANSFER CASE (TOD) Input/Output diagram TOD control unit and main wiring harness is linked by 30 pin
connector. Each pin joins with switche and actuator whosedetails refer to the below diagram.
Battery Power
Ignition ON/OFF
Position Encoder 1
Position Encoder 2
Position Encoder 3
Position Encoder 4
4H / 4L Switch Signal
A/T “N” Position Signal
Speed / TPS Supply
Front Speed Sensor Input
Rear Speed Sensor Input
ABS Operation Signal
Brake Switch Signal
4 5271028309241611292526
19 CAN H
CAN L
Shift Motor output port (LO-HI)
Shift Motor output port (HI-LO)
EMC
'4L' Indicator
Position Return
'4WD CHECK' IND
TPS/speed Sensor Ground (Speed / TPS Return)
2 13216713
1514
K-Line
20
22
23
17 18