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Home >> Suzuki >> 2006 >> Verona Luxury >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Brakes - Abs >> Diagnostic Information and Procedures >> DTC C1203: Right Front Wheel Speed Sensor Circuit Open or Shorted >> DTC Troubleshooting
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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action Value(s) Yes No
1 Was the diagnostic circuit check performed? - Go to Step 3 Go to Step 2
2 Perform the DIAGNOSTIC CIRCUIT CHECK .
Did you find problem?		 - Go to Step 3 System OK
3
  1. Ignition switch "OFF".
  2. Inspect the right front wheel speed sensor and jumper harness for other physical damage.

Is any physical damage noted?		 - Go to Step 4 Go to Step 5
4 Repair the damage to the right front wheel speed sensor, jumper harness.
Is the repair completed?		 - System OK -
5 Test-drive vehicle at various speeds and over various road surfaces.
Did C1203 reset?		 - Go to Step 7 Go to Step 6
6 DTC C1203 is intermittent. Refer to DIAGNOSTIC AIDS . - System OK -
7
  1. Ignition switch "OFF", vehicle in park.
  2. Raise and suitably support the vehicle.
  3. Disconnect the right front jumper harness from the right front wheel speed sensor.
  4. Connect an ohmmeter to terminals 2 and 1 of the right front wheel speed sensor.

Is the resistance with in specified range?.		 800 - 1,600 Ω (Resistance will vary with temperature) Go to Step 9 Go to Step 8
8 Replace the right front wheel speed sensor. - System OK -
9
  1. Right front jumper harness still disconnected from the speed sensor.
  2. Connect an ohmmeter to terminal 1 of the right front wheel speed sensor and then to body ground.

Is the resistance within the specified range?		 OL (open circuit) Go to Step 10 Go to Step 8
10
  1. Disconnect the EBCM harness from the EBCM.
  2. Disconnect the right front jumper harness from the wheel speed sensor.
  3. Connect an ohmmeter to EBCM harness terminal 2 and then the wheel speed sensor terminal 2.

Is the resistance within the specified range?		 Less than 2 Ω Go to Step 12 Go to Step 11
11 Repair the open or high resistance between terminals 2 and 2. - System OK -
12
  1. EBCM harness still disconnected from the EBCM.
  2. Right front jumper harness still disconnected from the wheel speed sensor.
  3. Connect an ohmmeter to EBCM harness terminal 1 and then to wheel speed sensor terminal 1.

Is the resistance within the specified range?		 Less than 2 Ω Go to Step 4 Go to Step 13
13 Repair the open or high resistance between terminals 1 and 1. - System OK -
14
  1. EBCM harness still disconnected from the EBCM.
  2. Right front jumper harness still disconnected from the wheel speed sensor.
  3. Connect a voltmeter to EBCM harness terminal 2 and then to body ground.

Is the voltage within the specified range?		 Less than 1 V Go to Step 16 Go to Step 15
15 Repair the short to voltage between terminals 2 and 1. - System OK -
16
  1. EBCM harness still disconnected from the EBCM.
  2. Right front jumper harness still disconnected from the wheel speed sensor.
  3. Connect a voltmeter to EBCM harness terminal 1 and then to body ground.

Is the voltage within the specified range?		 Less than 1 V Go to Step 18 Go to Step 17
17 Repair the short to voltage between terminals 1 and 2. - System OK -
18
  1. EBCM harness still disconnected from the EBCM.
  2. Right front jumper harness still disconnected from the wheel speed sensor.
  3. Connect an ohmmeter to EBCM harness terminal 2 and then to body ground.

Is the resistance within the specified range?		 OL (open circuit) Go to Step 20 Go to Step 19
19 Repair the short to ground between terminals 2 and 1 - System OK -
20
  1. EBCM harness still disconnected from the EBCM.
  2. Right front jumper harness still disconnected from the wheel speed sensor.
  3. Connect an ohmmeter to EBCM harness terminal 1 and then to body ground.

Is the resistance within the specified range?		 OL (open circuit) Go to Step 22 Go to Step 21
21 Repair the short to ground between terminals 1 and 2. - System OK -
22
  1. EBCM harness still disconnected from the EBCM.
  2. Right front jumper harness still disconnected from the wheel speed sensor.
  3. Connect an ohmmeter to EBCM harness terminal 1 and 2.

Is the resistance within the specified range?		 OL (open circuit) Go to Step 24 Go to Step 23
23 Repair the short between the 2 circuits. - System OK -
24
  1. Replace the right front wheel speed sensor Jumper Harness.
  2. Test-drive the vehicle at various speeds and various road surfaces.

Did C1203 reset?		 - Go to Step 25 System OK
25 Replace the EBCM. - System OK -
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