Suzuki SWIFT RS415 2017, Service Manual

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ABS: 4E-18
DTC C1021, C1022 / C1025, C1026 / C1031, C1032 / C1035, C1036: Right-Front / Left-Front / Right-
Rear / Left-Rear Wheel Speed Sensor Circuit or Sensor Ring
S4RS0A4504015
Wiring Diagram
DTC Detecting Condition
The ABS 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: ” 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
I4RS0A450014-
[A]: ABS hydraulic unit / control module connector E03 3. Right-rear wheel speed sensor 6. Left-front wheel speed sensor
1. Ignition switch 4. Left-rear wheel speed sensor 7. ABS hydraulic unit / control module assembly
2. Circuit fuse box 5. Right-front wheel speed sensor
Step Action Yes No
1 Was “ABS Check” performed? Go to Step 2. Go to “ABS Check: ”.
2 1) Disconnect applicable ABS wheel speed sensor coupler
with ignition switch OFF.
2) Measure resistance between terminals of ABS wheel
speed sensor. Refer to “Front Wheel Speed Sensor
Inspection: ” and/or “Rear Wheel Speed Sensor
Inspection: ”.
Is measured resistance value as specified?
Go to Step 3. Replace ABS wheel
speed sensor assembly.