2005 SUZUKI JIMNY Brake

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.

Downloaded from www.Manualslib.com manuals search engine 5E-22 ANTILOCK BRAKE SYSTEM (ABS)
INSPECTION
Step Action Yes No
1 1) Disconnect the applicable sensor connector with ignition
switch OFF.
2) Measure resistance between sensor terminals.
Resistance of wheel speed sensor: 1.4 – 1.8 kΩ (at
20°C, 68°F)
3) Measure resistance between each terminal and body
ground.
Insulation resistance: 1MΩ or higher
Were measured resistance values in step 2) and 3) as spec-
ified? (See [A])Go to step 2. Replace sensor.
2 1) Ignition switch OFF.
2) Disconnect connector from ABS hydraulic unit / control
module assembly. (See [B])
3) Check for proper connection to ABS hydraulic unit / con-
trol module assembly at each sensor terminal.
4) If OK, then turn ignition switch ON and measure voltage
between sensor positive terminal of module connector
and body ground.
Is it 0V?Go to step 3. Sensor positive cir-
cuit shorted to
power.
3 1) Ignition switch OFF.
2) Connect connector to sensor.
3) Measure resistance between sensor terminals at mod-
ule connector.
4) Measure resistance between sensor positive terminal
and negative terminal of module connector, between
positive terminal and body ground.
Are measured resistance values within each specified range
described in above step 1?Go to step 4. Circuit open or
shorted to ground.
4 1) Remove wheel speed sensor.
2) Check sensor for damage or foreign material being
attached.
Is it in good condition? (See [C])Go to step 5. Clean or replace
sensor.
5 Check visually through wheel speed sensor installation hole
for following.
Ring serration (teeth) neither missing or damaged.
No foreign material being attached.
Ring not being eccentric.
Wheel bearing free from excessive play.
Are they in good condition? (See [D])Go to step 6. Clean, repair or
replace.
6 1) Install sensor to knuckle or axle housing.
2) Tighten sensor bolt to specified torque and check that
there is not any clearance between sensor and knuckle
or axle housing. (See [E])
Replace sensor if any.
Referring to “Front Wheel Speed Sensor” in this section,
check output voltage or waveform of sensor. Is proper out-
put voltage or waveform obtained?Substitute a known-
good ABS hydraulic
unit / control module
assembly and
recheck.Replace sensor and
recheck.

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-23
1. ABS hydraulic unit / control module connector
2. Lock position
3. Unlock position

Downloaded from www.Manualslib.com manuals search engine 5E-24 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1041 (DTC 41), DTC C1042 (DTC 42) – Right Front Solenoid Circuit
DTC C1045 (DTC 45), DTC C1046 (DTC 46) – Left Front Solenoid Circuit
DTC C1055 (DTC 55), DTC C1056 (DTC 56) – Rear Solenoid Circuit
DESCRIPTION
The ABS control module monitors the voltage of the terminal of the solenoid circuit constantly with the ignition
switch turned ON. It sets this DTC when the terminal voltage does not become low / high for the ON / OFF com-
mand to the solenoid or the voltage difference between solenoid circuit terminals exceeds the specified value
with the solenoid turned OFF.
INSPECTION
1. ABS hydraulic unit / control module assembly 2-1. Lock position
2. ABS hydraulic unit / control module connector of harness 2-2. Unlock position
Step Action Yes No
1 1) Check solenoid referring to “ABS Hydraulic Unit
Operation Check” in this section.
Is it in good condition?Check terminals “A25” and
“A23” connection.
If connections OK, substitute
a known-good ABS hydraulic
unit / control module assem-
bly and recheck.Go to step 2.
2 1) Ignition switch OFF.
2) Disconnect ABS hydraulic unit / control module
connector.
3) Check for proper connection to ABS hydraulic unit
/ control module connector at terminal “A25”.
4) If OK, then measure voltage between terminal
“A25” of module connector and body ground.
Is it 10 – 14 V?Substitute a known-good
ABS hydraulic unit / control
module assembly and
recheck.“W/Bl” circuit
open.

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-25
DTC C1057 (DTC 57) – Power Source Circuit
DESCRIPTION
The ABS control module monitors the power source voltage at terminal “A18”. When the power source voltage
becomes extremely low, this DTC will be set. As soon as the voltage rises to the specified level, the set DTC will
be cleared.
INSPECTION
1. Ignition switch 3. ABS hydraulic unit / control module assembly 5. ABS hydraulic unit / control module connector
2. Main fuse 4. Circuit fuse
Step Action Yes No
1 Check battery voltage. Is it about 11 V or
higher?Go to step 2. Check charging system
referring to “Under-
charged Battery” in Sec-
tion 6H.
2 Check ABS main fuse, circuit fuse and connec-
tion. Is it in good condition?Go to step 3. Repair and/or replace
fuse.
3 1) Ignition switch OFF.
2) Disconnect ABS hydraulic unit / control
module connector.
3) Check proper connection to ABS hydraulic
unit / control module connector at terminal
“A18”.
4) If OK, then measure voltage between con-
nector terminal “A18” and body ground.
Is it 10 – 14 V?Substitute a known-good
ABS hydraulic unit / con-
trol module assembly and
recheck.“B/W” circuit open.

Downloaded from www.Manualslib.com manuals search engine 5E-26 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1061 (DTC 61) – ABS Pump Motor Circuit
DESCRIPTION
The ABS control module monitors the voltage at the terminal “A23” of the pump motor circuit constantly with the
ignition switch turned ON. It sets this DTC when the voltage at the terminal “A23” does not become high/low
according to ON/OFF commands to the motor transistor of the module.
INSPECTION
1. ABS hydraulic unit / control module assembly 1-3. ABS fail safe transistor 2-2. Unlock position
1-1. ABS pump motor transistor 2. ABS hydraulic unit / control module connector of harness
1-2. ABS pump motor 2-1. Lock position
Step Action Yes No
1 1) Check pump motor referring to “ABS
Hydraulic Unit Operation Check” in this sec-
tion.
Is it in good condition?Check terminal “A23” con-
nection.
If connections OK, substi-
tute 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 connector.
3) Check for proper connection to ABS hydrau-
lic unit / control module connector at termi-
nal “A23”.
4) If OK, then measure voltage between termi-
nal “A23” of module connector and body
ground.
Is it 10 – 14V?Go to step 3.“W/Bl” circuit open.
3 Measure resistance between connector termi-
nal “A22” of ABS hydraulic unit / control module
assembly and body ground.
Is it infinite (∞)?“B” circuit open. Substitute a known-good
ABS hydraulic unit / con-
trol module assembly and
recheck.

Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-27
DTC C1063 (DTC 63) – ABS Fail Safe Circuit
DESCRIPTION
The ABS control module monitors the voltage at the terminal of the solenoid circuit constantly with the ignition
switch turned ON. Also, immediately after the ignition switch is turned “ON”, perform an initial check as follows.
Switch the fail safe transistor in the order of ON → OFF → ON and check if the voltage at 6 solenoid circuit ter-
minals changes to High → Low → High. If anything faulty is found in the initial check and when the voltage at all
solenoid circuit terminals is low with the ignition switch turned ON and ABS not operated, this DTC will be set.
INSPECTION
1. Ignition switch 3-1. Lock position
2. ABS hydraulic unit / control module assembly 3-2. Unlock position
3. ABS hydraulic unit / control module connector of harness
Step Action Yes No
1 Check battery voltage. Is it about 11 V or
higher?Go to step 2. Check charging system
referring to “Under-
charged Battery” in Sec-
tion 6H.
2 Check ABS main fuse and connection.
Is it in good condition?Go to step 3. Repair and / or replace
fuse.
3 1) Ignition switch OFF.
2) Disconnect ABS hydraulic unit / control
module connector.
3) Check proper connection to ABS hydraulic
unit / control module at terminal “A25”.
4) If OK, then measure voltage between con-
nector terminal “A25” and body ground.
Is it 10 – 14 V?Substitute a known-good
ABS hydraulic unit / con-
trol module assembly and
recheck.“W/Bl” circuit open or
short to ground.

Downloaded from www.Manualslib.com manuals search engine 5E-28 ANTILOCK BRAKE SYSTEM (ABS)
DTC C1071 (DTC 71) – ABS Control Module
DESCRIPTION
This DTC will be set when an internal fault is detected in the ABS control module.
INSPECTION
Step Action Yes No
1 1) Ignition switch OFF.
2) Disconnect connectors from ABS control
module.
3) Check for proper connection to ABS control
module at all terminals.
Are they in good condition?Substitute a known-good
ABS control module and
recheck.Repair or replace.