Suzuki GRAND VITARA 2005 Service Manual page 360

4E-18 ABS:
DTC Detecting Condition
The ABS (ESP®) control module monitors the voltage at the 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 running, an applicable DTC will be set.
NOTE
When the vehicle was operated in any of the following ways, one of these DTCs may be set even when
the sensor is in good condition. If such possibility is suspected, clear DTC once referring to "DTC
Clearance: in related manual" and then performing the driving test as described in Step 2 of "ABS
Check: ", check whether or not any abnormality exists.
• The vehicle was driven with parking brake pulled.
• Wheel spin occurred while driving.
• Wheel(s) was turned while the vehicle was jacked up.
• The vehicle was stuck.
DTC Troubleshooting
Step
1 Was "ABS Check" performed?
2 1) Turn ignition switch OFF.
2) Disconnect ABS hydraulic unit / control module
connector.
3) Check for proper connection to ABS control module at
each sensor terminal.
4) If OK, then turn ignition switch ON and measure voltage
between applicable sensor terminal of module connector
and vehicle body ground.
Is it 0 V?
3 1) Disconnect applicable wheel speed sensor coupler with
ignition switch OFF.
2) Measure resistance between the following points.
• Both ABS (ESP®) hydraulic unit / control module
connector (1) terminals a pair of applicable sensor
terminals. This check result should be no continuity.
• Between applicable sensor terminal of ABS (ESP®)
hydraulic unit / control module connector and vehicle
body ground. This check result should be no
continuity.
• Between applicable sensor terminal of module
connector and corresponding terminal of ABS wheel
speed sensor connector (2) in main harness (for front
sensor) or floor harness (for rear sensor). This check
result should be continuity.
1
Are each check results OK?
Action
2
I5JB0A450014-02
Yes
Go to Step 2.
Go to Step 4.
Go to Step 4.
No
Go to "ABS Check: ".
ABS wheel speed
sensor circuit shorted to
power.
Circuit open or short to
ground.