DTC Troubleshooting

2013 Suzuki SX4 Crossover, Automatic CVT TransSECTION DTC Troubleshooting
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
C1033: SYMPTOM TROUBLESHOOTING REFERENCE CHART

Step Action YES NO
Was "Electronic Stability Program Check" performed?  Go to Step 2. Go to ELECTRONIC STABILITY PROGRAM CHECK .
Check DTC for ESP® 
  1. Connect SUZUKI scan tool to DLC with ignition switch turned OFF.
  2. Turn ignition switch ON and check DTC for ESP®.

Is DTC C1021, C1022, C1025, C1026, C1031, C1032, C1035 and/or C1036 detected together? 
Go to DTC C1021/C1022/C1025/C1026/C1031/C1032/C1035/C1036: WHEEL SPEED SENSOR CIRCUIT FAILURE/RANGE/PERFORMANCE  and recheck. Go to Step 3.
Check tire condition 
  1. Check that tire pressure is specifications.

Are they in good condition? 
Go to Step 3. Replace tire or adjust tire pressure and recheck.
Wheel speed sensor circuit check 
  1. Disconnect ESP® hydraulic unit/control module connector and all wheel speed sensor connectors with ignition switch turned OFF.
  2. Check for proper connection to ESP® hydraulic unit/control module connector and terminals of wheel speed sensor.
  3. If OK then check all wheel speed sensors circuit for open, short and high resistance.

Are wheel speed sensor circuits in good condition? 
Go to Step 5. Repair circuit and recheck.
Wheel speed sensor check 
  1. Inspection all wheel speed sensors referring to FRONT/REAR WHEEL SPEED SENSOR INSPECTION .

Are they in good condition? 
Go to Step 6. Clean or replace.
Wheel speed sensor encoder check 
  1. Inspection all wheel speed sensor encoders referring to FRONT WHEEL SPEED SENSOR ENCODER ON-VEHICLE INSPECTION  and/or REAR WHEEL SPEED SENSOR ENCODER ON-VEHICLE INSPECTION .

Are they in good condition? 
Go to Step 7. Clean or replace wheel hub assembly.
Wheel speed sensor signal check 
  1. Inspection all wheel speed sensors referring to FRONT/REAR WHEEL SPEED SENSOR ON-VEHICLE INSPECTION .

Are they in good condition? 
Substitute a known-good wheel hub assembly and recheck. If DTC detected, substitute a known-good ESP® hydraulic unit/control module and recheck. Replace wheel speed sensor and recheck.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.