2000 SUZUKI SWIFT relay

1B-36 AIR CONDITIONING (OPTIONAL)
A/C SWITCH
REMOVAL AND INSTALLATION
Refer to “HEATER CONTROL ASSEMBLY” in Section 1A.
INSPECTION
Press A/C switch button and check if there is continuity
between terminals “A” and “B”.
Connect battery voltage (+) to terminal “C” and (–) to termi-
nal “A”, and then press A/C Switch button and check if indi-
cator lamp lights.
RADIATOR/CONDENSER COOLING FAN
MOTOR RELAY No.1, No.2 and No.3
INSPECTION
Refer to “RADIATOR FAN RELAY” in Section 6B.
COMPRESSOR
REMOVAL
1) Run engine at idle speed with air conditioning ON for 10 min-
utes. After that stop the engine.
2) Disconnect negative (–) cable at battery.
3) Recover refrigerant from refrigeration system by referring to
“RECOVERY” in this section.
4) Remove front bumper by referring to “FRONT BUMPER” in
Section 8.
5) Remove engine food cover (1) from vehicle body.
NOTE:
The amount of removed compressor oil must be mea-
sured for replenishing compressor oil.

5E-2 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1015 (DTC 15) – G SENSOR
CIRCUIT .................................................... 5E-22
DTC C1021 (DTC 21), DTC C1022
(DTC 22) – RIGHT-FRONT WHEEL
SPEED SENSOR CIRCUIT OR SENSOR
RING .......................................................... 5E-24
DTC C1025 (DTC 25), DTC C1026
(DTC 26) – LEFT-FRONT WHEEL
SPEED SENSOR CIRCUIT OR SENSOR
RING .......................................................... 5E-24
DTC C1031 (DTC 31), DTC C1032
(DTC 32) – RIGHT-REAR WHEEL
SPEED SENSOR CIRCUIT OR SENSOR
RING .......................................................... 5E-24
DTC C1035 (DTC 35), DTC C1036
(DTC 36) – LEFT-REAR WHEEL SPEED
SENSOR CIRCUIT OR SENSOR RING.... 5E-24
DTC C1041 (DTC 41) – RIGHT-FRONT
INLET SOLENOID CIRCUIT...................... 5E-26
DTC C1045 (DTC 45) – LEFT-FRONT
INLET SOLENOID CIRCUIT...................... 5E-26
DTC C1051 (DTC 51) – RIGHT-REAR
INLET SOLENOID CIRCUIT...................... 5E-26
DTC C1055 (DTC 55) – LEFT-REAR
INLET SOLENOID CIRCUIT...................... 5E-26
DTC C1042 (DTC 42) – RIGHT-FRONT
OUTLET SOLENOID CIRCUIT.................. 5E-26
DTC C1046 (DTC 46) – LEFT-FRONT
OUTLET SOLENOID CIRCUIT.................. 5E-26
DTC C1052 (DTC 52) – RIGHT-REAR
OUTLET SOLENOID CIRCUIT.................. 5E-26DTC C1056 (DTC 56) – LEFT-REAR
OUTLET SOLENOID CIRCUIT ................. 5E-26
DTC C1057 (DTC 57) – POWER
SOURCE CIRCUIT .................................... 5E-27
DTC C1061 (DTC 61) – ABS PUMP
MOTOR CIRCUIT ...................................... 5E-28
DTC C1063 (DTC 63) – ABS FAIL-SAFE
RELAY CIRCUIT ....................................... 5E-29
DTC C1071 (DTC 71) – ABS CONTROL
MODULE ................................................... 5E-30
ON-VEHICLE SERVICE................................ 5E-31
PRECAUTIONS ......................................... 5E-31
ABS HYDRAULIC UNIT OPERATION
CHECK (USING SUZUKI SCAN TOOL) ... 5E-31
ABS HYDRAULIC UNIT OPERATION
CHECK (NOT USING SUZUKI SCAN
TOOL) ........................................................ 5E-31
ABS HYDRAULIC UNIT/CONTROL
MODULE ASSEMBLY ............................... 5E-33
FRONT WHEEL SPEED SENSOR ........... 5E-35
FRONT WHEEL SPEED SENSOR
RING .......................................................... 5E-37
REAR WHEEL SPEED SENSOR.............. 5E-38
REAR WHEEL SPEED SENSOR
RING (FOR 2WD VEHICLE) ..................... 5E-41
REAR WHEEL SPEED SENSOR
RING(FOR 4WD VEHICLE) ...................... 5E-42
G SENSOR (FOR 4WD VEHICLE
ONLY) ........................................................ 5E-43
SPECIAL TOOL ............................................ 5E-44

GENERAL DESCRIPTION
COMPONENTS/PARTS LOCATION AND BRAKE HOSE/PIPE ROUTING
The ABS (Antilock Brake System) controls the fluid pressure applied to the Wheel cylinder of each brake from
the master cylinder so that each wheel is not locked even when hard braking is applied.
This ABS has also the following function.
While braking is applied, but before ABS control becomes effective, braking force is distributed between the front
and rear so as to prevent the rear wheels from being locked too early for better stability of the vehicle.

ANTILOCK BRAKE SYSTEM (ABS) 5E-3
The main component parts of this ABS include the following parts in addition to those of the conventional brake
system.
Wheel speed sensor which senses revolution speed of each wheel and outputs its signal.
ABS warning lamp which lights to inform abnormality when system fails to operate properly.
ABS hydraulic unit/control module assembly is incorporated ABS control module, ABS hydraulic unit (actua-
tor assembly), fail-safe relay and pump motor relay.
–ABS control module which sends operation signal to ABS hydraulic unit to control fluid pressure applied to
each wheel cylinder based on signal from each wheel speed sensor so as to prevent wheel from locking.
–ABS hydraulic unit which operates according to signal from ABS control module to control fluid pressure
applied to wheel cylinder of each 4 wheels.
–Fail-safe relay (solenoid valve) relay which supplies power to solenoid valve in ABS hydraulic unit and
pump motor relay.
–Pump motor relay which supplies power to pump motor in ABS hydraulic unit.
G sensor which detects body deceleration speed. (For 4WD model only)]
This ABS is equipped with Electronic Brake force Distribution (EBD) system that controls a fluid pressure of rear
wheels to best condition, which is the same function as that of proportioning valve, by the signal from wheel sen-
sor independently of change of load due to load capacity and so on. And if the EBD system fails to operate prop-
erly, the brake warning lamp lights to inform abnormality.
[A] : RH steering vehicle shown 4. Stop lamp switch
1. ABS hydraulic unit/control module assembly 5. ABS warning lamp
2. G sensor (For 4WD vehicle only) 6. EBD warning lamp (Brake warning lamp)
3. Wheel speed sensors
156
2 4
33
[A]
NOTE:
As for the difference of RH steering vehicle and LH steering vehicle, the location of the combination
meter and the brake master cylinder assembly only changes.

5E-4 ANTILOCK BRAKE SYSTEM (ABS)
SYSTEM SCHEMATIC
1. ABS hydraulic unit/control module assembly 7.“ABS” warning lamp 13. Wheel speed sensor (Right-front)
2. ABS control module 8.“EBD” warning lamp (Brake warning lamp) 14. Wheel speed sensor (Left-front)
3. ABS hydraulic unit 9. Lamp driver module 15. Wheel speed sensor (Right-rear)
4. Fail safe relay 10. ECM 16. Wheel speed sensor (Left-rear)
5. Pump motor relay 11. Data link connector 17. G sensor (For 4WD vehicle only)
6. Stop lamp switch 12. Monitor coupler
INPUT OUTPUT
ABS control
module Wheel speed sensor (LF)
Wheel speed sensor (LR)
Wheel speed sensor (RF)
Wheel speed sensor (RR)
Stop lamp switch
Diag. switch terminal
Battery Voltage
G sensor (for 4WD vehicle only)
Pump motor
relay
Fail-safe
relay
Hydraulic unit
Pump motor
LF inlet solenoid
LF outlet solenoid
LR inlet solenoid
LR outlet solenoid
RF inlet solenoid
RF outlet solenoid
RR inlet solenoid
RR outlet solenoid
“ABS” warning lamp
ECM
EBD warning lamp
(Brake warning lamp)
Data link connector
ABS hydraulic unit/control
module assembly

ANTILOCK BRAKE SYSTEM (ABS) 5E-5
ABS HYDRAULIC UNIT/CONTROL MODULE
ASSEMBLY
ABS control module is a component of ABS hydraulic unit/control
module assembly and has the following functions.
SELF-DIAGNOSIS FUNCTION
ABS control module diagnoses conditions of the system compo-
nent parts (whether or not there is any abnormality) all the time
and indicates the results (warning of abnormality occurrence and
DTC) through the ABS warning lamp as described below.
1) When ignition switch is turned ON, ABS warning lamp lights
for 2 seconds to check its bulb and circuit.
2) When no abnormality has been detected (the system is in
good condition), ABS warning lamp turns OFF after 2 sec-
onds.
3) When an abnormality in the system is detected, ABS warn-
ing lamp lights and the area where that abnormality lies is
stored in the memory of EEPROM in ABS control module.
4) When Diag. switch terminal (2) of diagnosis connector (1)
(monitor connector) is grounded, the abnormal area is output
as DTC. It is indicated by flashing of ABS warning lamp.
(Refer to the table below.)
5) For procedure to clear all DTC’s, refer to “DIAGNOSTIC
TROUBLE CODE CLEARANCE” in this section.
Also ABS control module turns ON EBD warning lamp (brake
warning lamp) depending on the trouble that detected by the
module and EBD warning lamp does not indicate DTC as well as
ABS warning lamp.
FAIL-SAFE FUNCTION
When an abnormality occurs (an abnormal DTC is detected),
ABS control module turns OFF the fail-safe relay which supplies
power to ABS hydraulic unit. Thus, with ABS not operating,
brakes function just like the brake system of the vehicle without
ABS.
SYSTEM CONDITIONABS WARNING LAMP
Diag. switch
terminal is
not groundedDiag. switch
terminal is
grounded
In good
condition
at presentNo trouble in the past OFF DTC 12
Trouble occurred in
the pastOFF History DTC
Abnormal-
ity exists
at presentNo trouble in the past ON Current DTC
Trouble occurred in
the pastONCurrent and
history DTCs
3. Ground terminal
4. Service wire
3 11
2
4

ANTILOCK BRAKE SYSTEM (ABS) 5E-7
1. Battery 9. ABS hydraulic unit/control module assembly 17. Left-rear wheel speed sensor
2. Main fuses 10. Terminal arrangement of connector E19 for ABS
hydraulic unit/control module assembly18. Right-front wheel speed sensor
3. Ignition switch 11. ABS fail-safe relay (Solenoid valve relay) 19. Left-front wheel speed sensor
4. Circuit fuses 12. ABS pump motor relay 20. Data link connector
5. Combination meter 13. Pump motor 21. To ECM, SDM and EPS controller (if equipped)
6. ABS warning lamp 14. Solenoid valves 22. Stop lamp
7. Brake warning lamp (“EBD” warning lamp) 15. Diagnosis monitor coupler 23. Stop lamp switch
8. Warning lamp driver module (for ABS) 16. Right-rear wheel speed sensor 24. G sensor (For 4WD vehicle only)
Wire color
BLK : Black LT GRN/BLK : Light Green/Black RED/BLU : Red/Blue
BLK/ORN : Black/Orange LT GRN/RED : Light Green/Red WHT : White
BLK/YEL : Black/Yellow ORN : Orange WHT/BLK : White/Black
BLU : Blue PNK : Pink WHT/BLU : White/Blue
BRN : Brown PNK/BLU Pink/Blue WHT/RED : White/Red
GRN : Green RED : Red YEL : Yellow
GRN/ORN : Green/Orange RED/BLK : Red/Black
TERMINAL CIRCUIT
E191–
2 Stop lamp switch
3 Right-front wheel speed sensor (+)
4 Right-front wheel speed sensor (–)
5–
6 Right-rear wheel speed sensor (–)
7 Right-rear wheel speed sensor (+)
8–
9–
10 Brake warning lamp (EBD warning lamp)
11 G sensor (For 4WD vehicle only)
12 Diagnosis switch terminal
13 Ground (For G sensor) (For 4WD vehicle only)
14 ABS warning lamp
15 Left-front wheel speed sensor (+)
16 Left-front wheel speed sensor (–)
17–
18 Ignition switch
19 Left-rear wheel speed sensor (+)
20 Left-rear wheel speed sensor (–)
21 Data link connector
22 Ground (for ABS pump motor)
23 ABS pump motor relay
24 Ground (for ABS control module)
25 ABS fail-safe relay

ANTILOCK BRAKE SYSTEM (ABS) 5E-21
C1022 22 RF
Wheel speed sensor circuit
or sensor ring C1026 26 LF
C1032 32 RR
C1036 36 LR
C1041 41
RFInlet solenoid valve circuit
C1042 42 Outlet solenoid valve circuit
C1045 45
LFInlet solenoid valve circuit
C1046 46 Outlet solenoid valve circuit
C1051 51
RRInlet solenoid valve circuit
C1052 52 Outlet solenoid valve circuit
C1055 55
LRInlet solenoid valve circuit
C1056 56 Outlet solenoid valve circuit
C1057 57 Power source
C1061 61 ABS pump motor and/or motor relay circuit
C1063 63 Fail safe-relay
C1071 71 ABS control moduleDTC
(displayed
on SUZUKI
scan tool)DTC
(indicated by
ABS warning
lamp)ABS warning lamp flashing
patternDIAGNOSTIC ITEMS

5E-26 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1041 (DTC 41) – RIGHT-FRONT INLET SOLENOID CIRCUIT
DTC C1045 (DTC 45) – LEFT-FRONT INLET SOLENOID CIRCUIT
DTC C1051 (DTC 51) – RIGHT-REAR INLET SOLENOID CIRCUIT
DTC C1055 (DTC 55) – LEFT-REAR INLET SOLENOID CIRCUIT
DTC C1042 (DTC 42) – RIGHT-FRONT OUTLET SOLENOID CIRCUIT
DTC C1046 (DTC 46) – LEFT-FRONT OUTLET SOLENOID CIRCUIT
DTC C1052 (DTC 52) – RIGHT-REAR OUTLET SOLENOID CIRCUIT
DTC C1056 (DTC 56) – LEFT-REAR OUTLET SOLENOID CIRCUIT
DESCRIPTION
The ABS control module monitors the output from the valve.
When the output of each valve exceeds the specified value compared with the signal sent from ABS control
module, this DTC is set.
INSPECTION
1. ABS hydraulic unit/control module assembly 3. ABS control module 5. Fail-safe relay
2. ABS hydraulic unit/control module assembly connector 4. Signal
Step Action Yes No
1 1) Check solenoid operation referring to item “ABS
HYDRAULIC UNIT OPERATION CHECK” in this
section.
Is it in good condition?Check terminal “E19-25” con-
nection. If connection is OK,
substitute a known-good ABS
hydraulic unit/control module
assembly and recheck.Go to Step 2.
2 1) Ignition switch OFF.
2) Disconnect ABS hydraulic unit/control module con-
nector.
3) Check for proper connection to ABS hydraulic unit/
control module connector at terminal “E19-25”.
4) If OK, then measure voltage between terminal
“E19-25” of module connector and “E19-24”.
Is it 10 – 14 V?Substitute a known-good
ABS hydraulic unit/control
module assembly and
recheck.“WHT/BLU” or
“BLK” circuit
open.