Dtc C1021, C1022 / C1025, C1026 / C1031, C1032 / C1035, C1036: Right-Front / Left-Front / Right-Rear / Left-Rear Wheel Speed Sensor Circuit Or Encoder - Suzuki GRAND VITARA Owner's Manual

4E-20 ABS:
DTC C1021, C1022 / C1025, C1026 / C1031, C1032 / C1035, C1036: Right-Front / Left-Front / Right-
Rear / Left-Rear Wheel Speed Sensor Circuit or Encoder
Wiring Diagram
WHT
6
BLK
WHT
5
BLK
WHT
4
BLK
WHT
3
BLK
[A]: ABS hydraulic unit / control module connector
(viewed from terminal side)
1. Ignition switch
2. Circuit fuse (in junction block assembly)
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
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?
2
1
BLK/YEL GRN/ORN
BLU
BLU/BLK
GRN
GRN/BLK
YEL
YEL/BLK
LT GRN
LT GRN/BLK
3. Right-rear wheel speed sensor
4. Left-rear wheel speed sensor
5. Right-front wheel speed sensor
Action
12V
E03-7
12V
E03-22
E03-21
12V
7
E03-18
E03-19
12V
E03-16
E03-15
12V
E03-24
E03-25
Go to Step 2.
Go to Step 4.
[A]
E03
14 1
15 2
16 3
17 4
18
5
19
6
20
7
21
8
22
9
23
10
24
11
25 12
26 13
6. Left-front wheel speed sensor
7. ABS hydraulic unit / control module assembly
Yes
Go to "ABS Check: ".
ABS wheel speed
sensor circuit shorted to
power.
S5JB0A4504013
I5JB0A450013-03
No