DTC Troubleshooting

C1033: SYMPTOM TROUBLESHOOTING REFERENCE CHART

Step	Action	YES	NO
1	Was "Electronic Stability Program Check" performed?	Go to Step 2.	Go to ELECTRONIC STABILITY PROGRAM CHECK .
2	Check DTC for ESP® Connect SUZUKI scan tool to DLC with ignition switch turned OFF. 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.
3	Check tire condition Check that tire pressure is specifications. Are they in good condition?	Go to Step 3.	Replace tire or adjust tire pressure and recheck DTC.
4	Wheel speed sensor circuit check Disconnect ESP® hydraulic unit/control module connector and all wheel speed sensor connectors with ignition switch turned OFF. Check for proper connection to ESP® hydraulic unit/control module connector and terminals of wheel speed sensor. 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.
5	Wheel speed sensor check 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.
6	Wheel speed sensor encoder check 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.
7	Wheel speed sensor signal check 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.