turn SUZUKI JIMNY 2005 3.G Service Repair Manual

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-7
1) MALFUNCTION ANALYSIS
a) Customer Complaint Analysis
Record details of the problem (failure, complaint) and how it occurred as described by the customer.
For this purpose, use of such a questionnaire form as shown below will facilitate collecting information to
the point required for proper analysis and diagnosis.
CUSTOMER QUESTIONNAIRE (EXAMPLE)
b) Problem Symptom Confirmation
Check if what the customer claimed in “Customer Questionnaire” is actually found in the vehicle and if the
symptom is found, determine whether it is identified as a failure. (This step should be shared with the cus-
tomer if possible.) When “ABS” warning lamp is not operating correctly, proceed to “Diagnostic Flow Table-
A, B or C” in this section.
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 ABS control mod-
ule 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.

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-9
“ABS” Warning Lamp Check
Turn ignition switch ON and check that “ABS” warning lamp
comes ON for about 2 seconds and then goes OFF. If any faulty
condition is found, advance to Diagnostic Flow Table-A, B or C.
Diagnostic Trouble Code (DTC) Check
1) Test drive vehicle at 40 km/h for more than a minute.
2) Stop vehicle and while IG switch OFF, connect diagnosis
switch terminal (3) and ground terminal (2) of monitor con-
nector (1) with service wire (4).
3) Turn IG switch ON, read the flashing “ABS” warning lamp
which represents DTC as shown in example below and write
it down. When more than 2 DTC’s 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)
4) After completing the check, turn ignition switch off, discon-
nect service wire from monitor connector.
NOTE:
“ABS” warning lamp indicates only following DTCs, DTC
12 which means that no malfunction DTC is stored and
history DTC which indicates history trouble area. When
there is current trouble, “ABS” warning lamp remains ON
and therefore DTC is not indicated.

Downloaded from www.Manualslib.com manuals search engine 5E-10 ANTILOCK BRAKE SYSTEM (ABS)
DTC Check (Using SUZUKI Scan Tool)
1) Connect SUZUKI scan tool to data link connector after set-
ting cartridge for ABS to it.
Special tool
(A) : SUZUKI scan tool
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) Clearance
After repair or replace malfunction part(s), clear all DTC’s by pre-
forming the following procedure.
1) Turn ignition switch OFF.
2) Using service wire (4), connect diag. switch terminal (3) of
monitor connector (1) to ground terminal (2).
3) With connection described in above step 2) maintained, turn
ignition switch ON.
4) Repeat ON/OFF operation of service wire (4) at ground ter-
minal (2) at least 5 times within 10 seconds.
5) Turn ignition switch OFF and disconnect service wire (4)
from monitor connector (1).
6) Perform “DRIVING TEST” (Step 2 of “ABS Diagnostic Flow
Table”) and “DTC CHECK” and confirm that normal DTC
(DTC 12) is displayed.
WARNING:
When preforming 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.
NOTE:
Service wire ON time must be for 0.1 second and more.
NOTE:
It is also possible to clear DTC by using SUZUKI scan
tool. Refer to Cartridge Manual for procedure to clear
DTC.

Downloaded from www.Manualslib.com manuals search engine 5E-14 ANTILOCK BRAKE SYSTEM (ABS)
Table – A “ABS” Warning Lamp Circuit Check – Lamp Does Not Come “ON” at
Ignition Switch ON
CIRCUIT DESCRIPTION
Operation (ON / OFF) of the “ABS” warning lamp is controlled by the ABS control module and ABS lamp driver
module.
If the Antilock brake system is in good condition, the ABS control module turns the “ABS” warning lamp ON at
the ignition switch ON, keeps it ON for 2 seconds only and then turns it OFF. If an abnormality in the system is
detected, the lamp is turned ON by ABS control module. Also, it is turned ON by ABS lamp driver module when
the connector of the ABS control module was disconnected.
INSPECTION
1. Main fuse 6. Monitor connector (Blue) 8. ABS hydraulic unit / control module connector of harness
2. Ignition switch 6-1. Diag. switch terminal 8-1. Lock position
3. IG fuse 6-2. Diag. ground terminal 8-2. Unlock position
4.“ABS” warning lamp in combination meter 7. Combination meter
5. ABS hydraulic unit / control module assembly 7-1. ABS lamp driver module
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
module connector.
Does ABS warning lamp light with ignition
switch ON?Replace ABS hydraulic unit /
control module assembly.Go to step 3.

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Table – B “ABS” Warning Lamp Circuit Check – Lamp Comes “ON” Steady
Refer to TABLE – A for System Circuit Diagram and Circuit Description.
INSPECTION
3 1) Remove combination meter.
Is bulb of ABS warning lamp in good condition?“R/Bl” circuit shorted to ground.
If OK, replace ABS warning cir-
cuit (lamp driver module).Replace bulb.
4 Is IG fuse in good condition? Open in “B/W” wire to combina-
tion meter or poor connection.Repair and replace. Step Action Yes No
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 Is malfunction DTC (other than code No.12)
exists at step 1?Go to step 7 of ABS diag-
nostic flow table in this
section.Go to step 3.
3 1) Disconnect ABS hydraulic unit / control
module connector.
2) Check for proper connection to ABS hydrau-
lic unit / control module connector at termi-
nals “A14” and “A18”.
3) If OK, turn ignition switch “ON” and mea-
sure voltage at terminal “A18” of connector.
Is it 10 – 14 V?Go to step 4.“B/W” circuit open.
4 1) With ABS control module connector discon-
nected, turn ignition switch ON and light
ABS warning lamp.
2) Connect terminal “A14” of disconnected
connector to ground using service wire.
Does “ABS warning lamp” turn off?Go to step 5.“R/Bl” circuit open.
If wire and connection are
OK, replace ABS lamp
driver module.
5 1) Measure resistance from connector termi-
nal “A24” to body ground.
Is continuity indicated?Substitute a known-good
ABS hydraulic unit / con-
trol module assembly and
recheck.“B” circuit open.

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Table – D Code (DTC) is Not Outputted Even With Diag. Switch Terminal Con-
nected to Ground.
CIRCUIT DESCRIPTION
When the diag. switch terminal is connected to the ground with the ignition switch turned ON, the ABS control
module outputs a diagnostic trouble code by flashing “ABS” warning lamp.
INSPECTION
1.“ABS” warning lamp in combination meter 3-1. Diag. switch terminal 4-1. Lock position
2. ABS hydraulic unit / control module assembly 3-2. Diag. ground terminal 4-2. Unlock position
3. Monitor connector 4. ABS hydraulic unit / control module connector of harness
Step Action Yes No
1 Is it shorted diag. 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
module connector.
3) Measure resistance between diag. switch
terminal and connector terminal “A12”.
Is it infinite (∞)?“P/B” circuit open. Go to step 3.
3 1) Measure resistance between ground termi-
nal of monitor connector and body ground.
Is continuity indicated?Go to step 4.“B” circuit open or poor
connection.
4 1) Check for proper connection to ABS hydrau-
lic unit / control module at terminal “A12”
and “A24”.
2) If OK, then check “ABS” warning lamp cir-
cuit referring to TABLE A, B and C.
Is it in good condition?Substitute a known-good
ABS hydraulic unit / con-
trol module assembly and
recheck.Repair “ABS” warning
lamp circuit.

Downloaded from www.Manualslib.com manuals search engine 5E-18 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1015 (DTC 15) – G Sensor Circuit
DESCRIPTION
While a vehicle is at stop or running, if the potential difference between the sensor signal terminal “A11” and the
sensor ground terminal “A13” is not within the specified voltage value, or if the signal voltage while at a stop
does not vary from that while running, this DTC is set.
Therefore, this DTC may be set when a vehicle is lifted up and its wheel(s) is turned. In such case, clear the
DTC and check again.
1. Ignition switch 3. ABS hydraulic unit / control module assembly
2. G sensor 4. ABS hydraulic unit / control module connector of harness

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-19
INSPECTION
Step Action Yes No
1 Is G sensor installed floor securely? Go to step 2. Tighten sensor or bracket
screw securely. If not, use
new screw.
2 1) Ignition switch OFF.
2) Remove G sensor with bracket.
3) Check for proper connection to G sensor.
4) If OK, then check G sensor referring to “G
Sensor” in this section.
Is it in good condition?Go to step 3. Replace G sensor.
3 1) Disconnect connectors from ABS hydraulic
unit / control module assembly (See [A])
and G sensor.
2) Check for proper connection to ABS control
module at terminals “A11” and “A13”.
3) If OK, then turn ignition switch ON and mea-
sure voltage between “B/W” terminal of sen-
sor connector and body ground.
Is it 10 – 14 V?Go to step 4.“B/W” circuit open.
4 Measure voltage between “R/W” terminal of
sensor connector and body ground.
Is it 0 V?Go to step 5.“R/W” circuit shorted to
power circuit.
5 1) Ignition switch OFF.
2) Check that “R/W” circuit is free from open or
short to ground and “Or/B” circuit. (See [B])
Is it in good condition?“Or/B” circuit open.
If circuit is OK, substitute
a known-good ABS
hydraulic unit / control
module assembly.“R/W” circuit open or
shorted to ground or “Or/
B” circuit.
1. ABS hydraulic unit / control module connector
2. Lock position
3. Unlock position

Downloaded from www.Manualslib.com manuals search engine 5E-20 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1016 (DTC 16) – Stop Lamp Circuit
DESCRIPTION
The ABS control module monitors the voltage at the stop lamp while the ignition switch is ON. When the voltage
is without the specified range at terminal “A2”, a DTC will be set.
INSPECTION
1. Main fuse 4. IG fuse 7. ABS hydraulic unit / control module assembly
2. Ignition switch 5. Stop lamp switch 8. ABS hydraulic unit / control module connector of harness
3. Tail stop fuse 6. Stop lamp
Step Action Yes No
1 1) Turn IG switch OFF.
2) Disconnect connectors from ABS hydraulic
unit / control module assembly.
3) Depress the brake pedal.
4) Measure the voltage between the stop lamp
terminal “A2” and body ground.
Is it 10 – 14 V?Check for proper connection to
ABS control module at terminal
“A2”. If OK, substitute a known-
good ABS control module and
recheck.“G/W” circuit open.

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-21
DTC C1021 (DTC 21), DTC C1022 (DTC 22) – Right Front Wheel Speed Sensor
Circuit
DTC C1025 (DTC 25), DTC C1026 (DTC 26) – Left Front Wheel Speed Sensor
Circuit
DTC C1031 (DTC 31), DTC C1032 (DTC 32) – Right Rear Wheel Speed Sensor
Circuit
DTC C1035 (DTC 35), DTC C1036 (DTC 36) – Left Rear Wheel Speed Sensor
Circuit
DESCRIPTION
The ABS control module monitors the voltage at the positive (+) terminal of each sensor while the ignition switch
is ON. When the voltage is not within the specified range, an applicable DTC will be set. Also, when no sensor
signal is inputted at starting or while running, an applicable DTC will be set.
1. Ignition switch 4. Right front wheel speed sensor 7. ABS hydraulic unit / control module connector of harness
2. ABS hydraulic unit / control module assembly 5. Left rear wheel speed sensor
3. Left front wheel speed sensor 6. Right rear wheel speed sensor
NOTE:
When the vehicle was operated in any of the following ways, one of these DTC’s may be set even when
the sensor is in good condition. If such possibility is suspected, repair the trouble (dragging of brake,
etc.) of the vehicle, clear DTC once and then after performing the driving test as described in Step 2 of
“ABS DIAG. FLOW TABLE” in this section, check whether or not any abnormality exists.
The vehicle was driven with parking brake pulled.
The vehicle was driven with brake dragging.
Wheel spin occurred while driving.
Wheel(s) was turned while the vehicle was jacked up.
The vehicle was stuck.