2000 SUZUKI SWIFT ignition

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.

5E-12 ANTILOCK BRAKE SYSTEM (ABS)
ABS WARNING LAMP CHECK
1) Turn ignition switch ON.
2) Check that ABS warning lamp (1) comes ON for about 2 sec-
onds and then goes off.
If any faulty condition is found, advance to Diagnostic Flow
Table-A, B, C or D.
EBD WARNING LAMP (BRAKE WARNING
LAMP) CHECK
1) Turn ignition switch ON with parking brake applied.
2) Check that EBD warning lamp (brake warning lamp) (1) is
turned ON.
3) Release parking brake with ignition switch ON and check
that EBD warning lamp (brake warning lamp) goes off.
If it doesn’t go off, go to “TABLE-E” in this section.
NOTE:
Perform this check on a level place.

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.

ANTILOCK BRAKE SYSTEM (ABS) 5E-15
TABLE – C ABS WARNING LAMP CIRCUIT CHECK – THE LAMP FLASHES
CONTINUOUSLY WHILE IGNITION SWITCH IS ON
CIRCUIT DESCRIPTION
When diagnosis switch terminal is shorted or connected to the ground with ignition switch ON, diagnosis trouble
code (DTC) is indicated by flashing of ABS warning lamp only in the following cases.
Normal DTC (12) is indicated if no malfunction DTC is detected in the ABS.
A history malfunction DTC is indicated by flashing of the lamp if a current malfunction DTC is not detected at
that point although a history malfunction DTC is stored in memory.
INSPECTION
1.“ABS” warning lamp in combination meter 3. Diagnosis monitor coupler 3-2. Diagnosis ground terminal
2. ABS hydraulic unit/control module assembly 3-1. Diagnosis switch terminal 4. ABS hydraulic unit/control module connector
Step Action Yes No
1 Is diagnosis switch terminal connected to
ground via service wire?Go to Step 3. Go to Step 2.
2 1) Ignition switch ON.
2) Measure voltage between diagnosis switch
terminal and ground.
Is it 10 – 14 V?Substitute a known-good
ABS hydraulic unit/con-
trol module assembly and
recheck.“PNK” wire circuit shorted
to ground.
3 1) Ignition switch ON.
2) Does flashing of ABS warning lamp indicate
DTC?Go to Step 7 of “ABS
DIAGNOSTIC FLOW
TABLE” in this section.Substitute a known-good
ABS hydraulic unit/con-
trol module assembly and
recheck.

5E-16 ANTILOCK BRAKE SYSTEM (ABS)
TABLE – D CODE (DTC) IS NOT OUTPUTTED EVEN WITH DIAGNOSIS
SWITCH TERMINAL CONNECTED TO GROUND
CIRCUIT DESCRIPTION
When diagnosis switch terminal is connected to ground with ignition switch turned ON, the ABS control module
outputs diagnostic trouble code by flashing ABS warning lamp.
INSPECTION
1. ABS warning lamp in combination meter 3. Diagnosis monitor coupler 3-2. Diagnosis ground terminal
2. ABS hydraulic unit/control module assembly 3-1. Diagnosis switch terminal 4. ABS hydraulic unit/control module connector
Step Action Yes No
1 Is it shorted diagnosis switch terminal and
ground terminal by service wire properly?Go to Step 2. Connect service wire
securely.
2 1) Disconnect service wire.
2) Disconnect ABS hydraulic unit/control mod-
ule connector.
3) Measure resistance between diagnosis
switch terminal and connector terminal
“E19-12”.
Is it infinite (∞)?“PNK” circuit open. Go to Step 3.
3 1) Measure resistance between ground termi-
nal of monitor coupler and body ground.
Is continuity indicated?Go to Step 4.“BLK” circuit open or poor
connection.
4 1) Check for proper connection to ABS
hydraulic unit/control module at terminal
“E19-12”.
2) If OK, then check ABS warning lamp circuit
referring to TABLE A, B and C.
Is it in good condition?Substitute a known-good
ABS hydraulic with/control
module assembly and
recheck.Repair “ABS” warning
lamp circuit.

5E-18 ANTILOCK BRAKE SYSTEM (ABS)
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
(USING ABS WARNING LAMP)
1) Perform ABS WARNING LAMP CHECK described above.
2) Using service wire (4), connect diagnosis switch terminal (2)
of monitor coupler (1) to ground (3).
3) Turn ignition switch ON.
4) Read flashing of ABS warning lamp which represents DTC
as shown in example below and write it down. When more
than 2 DTCs are stored in memory, flashing for each DTC is
repeated three times starting with the smallest DTC number
in increasing order.
For details of DTC, refer to “DTC TABLE”.
Example : When right-front wheel speed sensor circuit opens (DTC 21)
5) After completing the check, turn ignition switch off, discon-
nect service wire from monitor coupler.
3 11
2
4

ANTILOCK BRAKE SYSTEM (ABS) 5E-19
DIAGNOSTIC TROUBLE CODE (DTC) CHECK
(USING SUZUKI SCAN TOOL)
1) After setting cartridge for ABS to SUZUKI scan tool, connect
SUZUKI scan tool to data link connector.
Special tool
(A) : 09931-76011 (SUZUKI scan tool)
(B) : Mass storage cartridge
(C) : 09931-76030 (16/14 pin DLC cable)
2) Turn ignition switch ON.
3) Read DTC according to instructions displayed on SUZUKI
scan tool and print it or write it down. Refer to SUZUKI scan
tool operator’s manual for further details.
4) After completing the check, turn ignition switch off and dis-
connect SUZUKI scan tool from DLC.
DIAGNOSTIC TROUBLE CODE (DTC) CLEAR-
ANCE
After repair or replace malfunction part(s), clear all DTCs by per-
forming the following procedure.
1) Turn ignition switch OFF.
2) Using service wire (4), connect diagnosis switch terminal (2)
of diagnosis monitor coupler (1) to ground terminal (3).
3) With connection described in above Step 2) maintained, turn
ignition switch ON.
(A)
(B) (C)
WARNING:
When performing a driving test, select a safe place where
there is neither any traffic nor any traffic accident possi-
bility and be very careful during testing to avoid occur-
rence of an accident.
3 11
2
4