2000 SUZUKI SWIFT warning light

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

5E-8 ANTILOCK BRAKE SYSTEM (ABS)
DIAGNOSIS
To ensure that the trouble diagnosis is done accurately and
smoothly, observe “PRECAUTIONS IN DIAGNOSING TROU-
BLES” and follow “ABS DIAGNOSTIC FLOW TABLE”.
PRECAUTION IN DIAGNOSING TROUBLES
If the vehicles was operated in any of the following ways,
ABS warning lamp may light momentarily but this does not
indicate anything abnormal in ABS.
–The vehicle was driven with parking brake pulled.
–The vehicle was driven with brake dragging.
–The vehicle was stuck in mud, sand, etc.
–Wheel spin occurred while driving.
–Wheel(s) was rotated while the vehicle was jacked up.
Be sure to read “PRECAUTIONS FOR ELECTRONIC CIR-
CUIT SERVICE” in Section 0A before inspection and
observe what is written there.
Be sure to use the trouble diagnosis procedure as described
in the flow table. Failure to follow the flow table may result in
incorrect diagnosis. (Some other diagnosis trouble code may
be stored by mistake in the memory of ABS control module
during inspection.)
When disconnecting ABS hydraulic unit/control module con-
nector (1), pull up lock (2) of connector.
When connecting, set the connector on ABS hydraulic unit/
control module assembly and push the lock (2) down.
D : Disconnect
C : Connect

ANTILOCK BRAKE SYSTEM (ABS) 5E-11
c) Diagnostic Trouble Code (DTC) Check, Record and Clearance
Perform “DIAGNOSTIC TROUBLE CODE CHECK” procedure in this section, record it and then clear it
referring to “DIAGNOSTIC TROUBLE CODE CLEARANCE” in this section.
If the malfunction DTC which was once displayed and then cleared cannot be detected (indicated) again
when the ignition switch is turned ON, attempt to diagnose the trouble based on the DTC recorded in this
step may mislead the diagnosis or make diagnosing difficult. Proceed to Step 2) to check control module
for proper self-diagnosis function.
If the malfunction DTC which was once displayed and then cleared can be detected (indicated) again when
ignition switch is turned ON, proceed to Step 3).
2) DRIVING TEST
Test drive the vehicle at 40 km/h for more than a minute and check if any trouble symptom (such as abnor-
mal lighting of ABS warning light) exists.
If the malfunction DTC is confirmed again at ignition switch ON, driving test as described in above is not nec-
essary. Proceed to Step 3).
3) DIAGNOSTIC TROUBLE CODE CHECK
Recheck diagnostic trouble code referring to “DTC CHECK” as shown in the following page.
4) DIAGNOSTIC TROUBLE CODE FLOW TABLE
According to Diagnostic flow table for the diagnostic trouble code confirmation in Step 3), locate the cause of
the trouble, namely in a sensor, switch, wire harness, connector, actuator assembly or other part and repair
or replace faulty parts.
5)“DIAGNOSIS” IN “BRAKES” SECTION
Check the parts or system suspected as a possible cause referring to “DIAGNOSIS” in “BRAKES” section
and based on symptoms appearing on the vehicle (symptom obtained through Steps 1)-a, 1)-b and 2) and
repair or replace faulty parts, if any).
6) CHECK FOR INTERMITTENT PROBLEM
Check parts where an intermittent trouble is easy to occur (e.g., wire harness, connector, etc.), referring to
“INTERMITTENT TROUBLE” in “GENERAL INFORMATION” section and related circuit of trouble code
recorded in Step 1)-c.
7) FINAL CONFIRMATION TEST
Confirm that the problem symptom has gone and the ABS is free from any abnormal conditions. If what has
been repaired is related to the malfunction DTC, clear the DTC once and perform test driving and confirm
that no DTC is indicated.

ANTILOCK BRAKE SYSTEM (ABS) 5E-13
TABLE – A ABS WARNING LAMP CIRCUIT CHECK – LAMP DOES NOT COME
“ON” AT IGNITION SWITCH ON
CIRCUIT DESCRIPTION
Operation (ON/OFF) of ABS warning lamp is controlled by ABS control module through lamp driver module in
combination meter.
If the Antilock brake system is in good condition, ABS control module turns ABS warning lamp ON at the ignition
switch ON, keeps it ON for 2 seconds and then turns it OFF. If an abnormality in the system is detected, ABS
warning lamp is turned ON continuously by ABS control module. Also, it is turned ON continuously by lamp
driver module when the connector of ABS control module is disconnected.
INSPECTION
1. Main fuse 5. ABS warning lamp 9. Brake fluid level switch
2. Ignition switch 6. Brake warning lamp 10. ABS hydraulic unit/control module assembly
3. Circuit fuse 7. Lamp driver module 11. ABS hydraulic unit/control module connector
4. Combination meter 8. Parking brake switch
Step Action Yes No
1 1) Turn ignition switch ON.
Do other warning lamp come ON?Go to Step 2. Go to Step 4.
2 1) Disconnect ABS hydraulic unit/control mod-
ule connector.
Does ABS warning lamp light with ignition
switch ON?Substitute a known-good ABS
hydraulic unit/control module
assembly and recheck.Go to Step 3.
3 1) Remove combination meter.
Is bulb of ABS warning lamp in good condition?“RED/BLU” circuit shorted to
ground. If OK, replace combina-
tion meter (lamp driver module).Replace bulb.
4 Is IG fuse in good condition? Open in “BLK/WHT” wire to
combination meter or poor con-
nection.Repair and replace.

5E-14 ANTILOCK BRAKE SYSTEM (ABS)
TABLE – B ABS WARNING LAMP CIRCUIT CHECK – LAMP COMES “ON”
STEADY
Refer to TABLE – A for System Circuit Diagram and Circuit Description.
INSPECTION
Step Action Yes No
1 Perform diagnostic trouble code check. Is there
any DTC (including code No.12, NO CODES on
SUZUKI scan tool) exists?Go to Step 2. Go to Step 3.
2 Does malfunction DTC (other than code No.12)
exist at Step 1?Go to Step 7 of “ABS
DIAGNOSTIC FLOW
TABLE” in this section.Go to Step 3.
3 1) Disconnect ABS hydraulic unit/control mod-
ule connector.
2) Check for proper connection to ABS
hydraulic unit/control module connector at
terminals “E19-14”, “E19-18” and “E19-24”.
3) If OK then ignition switch ON and measure
voltage at terminal “E19-18” of connector.
Is it 10 – 14 V?Go to Step 4.“GRN/ORN” circuit open.
4 1) With ABS hydraulic unit/control module con-
nector disconnected, turn ignition switch ON
and light ABS warning lamp.
2) Connect terminal “E19-14” of disconnected
connector to ground using service wire.
Does ABS warning lamp turn off?Go to Step 5.“RED/BLU” circuit open.
If wire and connection are
OK, replace combination
meter (lamp driver mod-
ule).
5 1) Measure resistance from connector terminal
“E19-24” to body ground.
Is continuity indicated?Substitute a known-good
ABS hydraulic unit/con-
trol module assembly and
recheck.“BLK” circuit open.

6-32 ENGINE GENERAL INFORMATION AND DIAGNOSIS
✱THROTTLE POS
(ABSOLUTE THROTTLE
POSITION)Ignition switch
ON/engine
stoppedThrottle valve fully closed 7 – 18%
Throttle valve fully open 70 – 90%
✱O2S B1 S1
(HEATED OXYGEN SEN-
SOR-1)At specified idle speed after warming up 0.01 – 0.95 V
∆✱O2S B1 S2
(HEATED OXYGEN SEN-
SOR-2)When engine is running at 2000 r/min. for 3
min or longer after warming up.0.01 – 0.95 V
∆✱O2S FT B1 S1 At specified idle speed after warning up– 20 – +20%
∆✱DIS. WITH MIL ON––
DESIRED IDLE
(DESIRED IDLE SPEED)At idling with no load after warming up, M/T
at neutral, A/T at “P” rangeM/T 700 r/min
A/T 750 r/min
TP SENSOR VOLT
(THROTTLE POSITION
SENSOR OUTPUT VOLT-
AGE)Ignition switch
ON/engine
stoppedThrottle valve fully closed More than 0.2 V
Throttle valve fully open Less than 4.8 V
INJ PULSE WIDTH
(FUEL INJECTION PULSE
WIDTH)At specified idle speed with no load after
warming up2.0 – 3.6 msec.
At 2500 r/min with no load after warming up 2.0 – 3.6 msec.
IAC FLOW DUTY
(IDLE AIR CONTROL
FLOW DUTY)At idling with no load after warming up 5 – 25%
TOTAL FUEL TRIM At specified idle speed after warming up– 35 – +35%
BATTERY VOLTAGE Ignition switch ON/engine stop 12 – 14 V
CANIST PRG DUTY
(EVAP CANISTER PURGE
FLOW DUTY)–0 – 100%
CLOSED THROT POS
(CLOSED THROTTLE
POSITION)Throttle valve at idle position ON
Throttle valve opens larger than idle posi-
tionOFF
FUEL CUT When engine is at fuel cut condition ON
Other than fuel cut condition OFF
RADIATOR FAN
(RADIATOR FAN CON-
TROL RELAY)Ignition switch
ONEngine coolant temp. :
Lower than 95°C (203°F)OFF
Engine coolant temp. :
97.5°C (208°F) or higherON
ELECTRIC LOAD Ignition switch ON/Headlight, small light
and rear window defogger all turned OFFOFF
Ignition switch ON/Headlight, small light or
rear window defogger turned ONON
A/C SWITCH Engine running after warming up, A/C not
operatingOFF
Engine running after warming up, A/C oper-
atingON SCAN TOOL DATA VEHICLE CONDITION NORMAL CONDITION/
REFERENCE VALUES

6-46 ENGINE GENERAL INFORMATION AND DIAGNOSIS
TABLE A-1 MALFUNCTION INDICATOR LAMP CIRCUIT CHECK - LAMP DOES
NOT COME “ON” AT IGNITION SWITCH ON (BUT ENGINE AT STOP)
WIRING DIAGRAM
CIRCUIT DESCRIPTION
When the ignition switch is turned ON, ECM causes the main relay to turn ON (close the contact point). Then,
ECM being supplied with the main power, turns ON the malfunction indicator lamp (MIL). When the engine
starts to run and no malfunction is detected in the system, MIL goes OFF but if a malfunction was or is detected,
MIL remains ON even when the engine is running.
INSPECTION
1. BATT fuse 3. IG METER fuse 5. Monitor connector 7. To ignition switch
2. Main fuse box 4. To battery 6. MIL
[A] : Case of TYPE A is shown
(See NOTE)[B] : Case of TYPE B is shown
(See NOTE)
1
12V5V
ECM
23
+BB
DA
C
BLK/WHT
BRN/WHT
BLK/RED
BLK/RED
C42 (31P) C41 (24P) G02 (17P)1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 28 27 29 30 315 6
1 2 3 4 5 6 7
11 12
9 10 11 13 12 14 15 16
16 171 2
7 8
13 14 3 4
9 10
15 17 188
19 20 21 22 23 24
BLK
DN
TS
GNDMON
PPL/WHTC42-27 [A]
C42-16 [A]
PNK/BLUC42-28 [A]
7 4
G02-1 [A]IG1
5
6IG1
WHT/GRN
BLK/WHT
G02-6 [A]
C41-5 C41-6 C41-10 C41-11 [B]C41-14 [B]
C41-15 [B]
C41-8 [B]
G02-9 [B]
PPL/WHT
NOTE:
For TYPE A and TYPE B, refer to NOTE in “ECM VOLTAGE VALUES TABLE” for applicable model.
Step Action Yes No
1 MIL Power Supply Check
1) Turn ignition switch ON.
Do other indicator/warning lights in combination
meter comes ON?Go to Step 2.“IG METER” fuse blown,
main fuse blown, ignition
switch malfunction, “BLK/
WHT” circuit between “IG
METER” fuse and combi-
nation meter or poor cou-
pler connection at
combination meter.
2 ECM Power and Ground Circuit Check
Does engine start?Go to Step 3. Go to TABLE A-5 ECM
POWER AND GROUND
CIRCUIT CHECK.
If engine is not cranked,
go to DIAGNOSIS in Sec-
tion 6G.

CHARGING SYSTEM 6H-9
ON-VEHICLE SERVICE
BATTERY
JUMP STARTING IN CASE OF EMERGENCY
WITH AUXILIARY (BOOSTER) BATTERY
Both booster and discharged battery should be treated carefully when using jumper cables. Follow procedure
outlined below, being careful not to cause sparks.
1) Set parking brake and place automatic transmission in PARK (NEUTRAL on manual transmission). Turn off
ignition, turn off lights and all other electrical loads.
2) Check electrolyte level. If it is below low level line, add distilled water.
3) Attach end of one jumper cable to positive terminal of booster battery and the other end of the same cable to
positive terminal of discharged battery. (Use 12-volt battery only to jump start engine).
4) Attach one end of the remaining negative cable to negative terminal of booster battery, and the other end to
a solid engine ground (such as exhaust manifold) at least 45 cm (18 in.) away from battery of vehicle being
started.
5) Start engine of vehicle with booster battery and turn off electrical accessories. Then Start engine of the vehi-
cle with discharged battery.
6) Disconnect jumper cables in the exact reverse order.
WITH CHARGING EQUIPMENT
CAUTION:
If vehicle is manual transmission model and has a catalytic converter, do not push or tow it to start.
Damage to its emission system and/or to other parts may result.
WARNING:
Departure from these conditions or procedure described below could result in:
–Serious personal injury (particularly to eyes) or property damage from such causes as battery
explosion, battery acid, or electrical burns.
–Damage to electronic components of either vehicle.
Remove rings, watches, and other jewelry. Wear approved eye protection.
Be careful so that metal tools or jumper cables do not contact positive battery terminal (or metal in
contact with it) and any other metal on vehicle, because a short circuit could occur.
WARNING:
Do not connect negative cable directly to negative terminal of dead battery.
CAUTION:
When jump starting engine with charging equipment, be sure equipment used is 12-volt and negative
ground. Do not use 24-volt charging equipment. Using such equipment can cause serious damage to
electrical system or electronic parts.