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DTC Troubleshooting Index

DTC TROUBLESHOOTING CHART

DTC Detection Item Note
11-01 Low/High IG1-terminal Voltage (Initial Diagnosis) (see DTC TROUBLESHOOTING )
11-02 Low/High IG1-terminal Voltage (Regular Diagnosis) (see DTC TROUBLESHOOTING )
12-01 Low/High VBU Voltage (Regular Diagnosis) (see DTC 12-01: LOW/HIGH VBU VOLTAGE (REGULAR DIAGNOSIS) )
21-01 Excessive Change of the Vehicle Speed Signal (Regular Diagnosis) (see DTC 21-01: EXCESSIVE CHANGE OF THE VEHICLE SPEED SIGNAL (REGULAR DIAGNOSIS); DTC 21-02: COMPARISON BETWEEN THE VEHICLE SPEED AND THE ENGINE SPEED SIGNAL (REGULAR DIAGNOSIS) )
21-02 Comparison between the Vehicle Speed and the Engine Speed Signal (Regular Diagnosis) (see DTC 21-01: EXCESSIVE CHANGE OF THE VEHICLE SPEED SIGNAL (REGULAR DIAGNOSIS); DTC 21-02: COMPARISON BETWEEN THE VEHICLE SPEED AND THE ENGINE SPEED SIGNAL (REGULAR DIAGNOSIS) )
22-01 Engine Speed Signal (Initial Diagnosis) (see DTC 22-01: ENGINE SPEED SIGNAL (INITIAL DIAGNOSIS) )
31-01 Torque Sensor Neutral Position Not Memorized (Initial Diagnosis) (see DTC 31-01; TORQUE SENSOR NEUTRAL POSITION NOT MEMORIZED (INITIAL DIAGNOSIS) )
32-01 EPS Control Unit Internal Circuit (Current Sensor) (Initial Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
32-02 EPS Control Unit Internal Circuit (Current Sensor) (Regular Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
32-07 EPS Control Unit Internal Circuit (Current Sensor) (Steering Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
32-08 Current Sensor (Regular Diagnosis) (see DTC 32-08: CURRENT SENSOR (REGULAR DIAGNOSIS); DTC 32-09: CURRENT SENSOR (INITIAL DIAGNOSIS) )
32-09 Current Sensor (Initial Diagnosis) (see DTC 32-08: CURRENT SENSOR (REGULAR DIAGNOSIS); DTC 32-09: CURRENT SENSOR (INITIAL DIAGNOSIS) )
33-01 Lower FET Stuck ON (Initial Diagnosis) (see DTC 33-01: LOWER FET STUCK ON (INITIAL DIAGNOSIS); DTC 33-06: LOWER FET STUCK ON (REGULAR DIAGNOSIS) )
33-02 Upper FET Stuck ON (Initial Diagnosis) (see DTC 33-02: UPPER FET STUCK ON (INITIAL DIAGNOSIS); DTC 33-07: UPPER FET STUCK ON (REGULAR DIAGNOSIS) )
33-06 Lower FET Stuck ON (Regular Diagnosis) (see DTC 33-01: LOWER FET STUCK ON (INITIAL DIAGNOSIS); DTC 33-06: LOWER FET STUCK ON (REGULAR DIAGNOSIS) )
33-07 Upper FET Stuck ON (Regular Diagnosis) (see DTC 33-02: UPPER FET STUCK ON (INITIAL DIAGNOSIS); DTC 33-07: UPPER FET STUCK ON (REGULAR DIAGNOSIS) )
34-01 Power Relay Stuck ON (Ignition Switch is in LOCK (0)) (see DTC 34-01: POWER RELAY STUCK ON (IGNITION SWITCH IS IN LOCK (0)) )
34-02 Fail-safe Relay Stuck ON (Initial Diagnosis) (see DTC 34-02: FAIL-SAFE RELAY STUCK ON (INITIAL DIAGNOSIS) )
35-01 EPS Control Unit Internal Circuit (CPU) (Initial Diagnosis/Regular Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
35-02 EPS Control Unit Internal Circuit (EEPROM) (Initial Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
35-04 EPS Control Unit Internal Circuit (CPU Communication) (Regular Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
35-05 EPS Control Unit Internal Circuit (EPS Motor/EPS CPU) (Initial Diagnosis) (see DTC 35-05: EPS CONTROL UNIT INTERNAL CIRCUIT (EPS MOTOR/EPS CPU) (INITIAL DIAGNOSIS) )
35-07 EPS Control Unit Internal Circuit (INHL/INHR Ports) (Initial Diagnosis/Regular Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
36-02 EPS Control Unit Internal Circuit (INH Output Circuit) (Initial Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
37-01 EPS Control Unit Internal Circuit (Step-up Circuit) (Initial Diagnosis) (see DTC 32-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (INITIAL DIAGNOSIS); DTC 32-02: EPS CONTROL UNIT INTERNAL CIRCUIT (CURRENT SENSOR) (REGULAR DIAGNOSIS); DTC 35-01: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 35-02: EPS CONTROL UNIT INTERNAL CIRCUIT (EEPROM) (INITIAL DIAGNOSIS); DTC 35-04: EPS CONTROL UNIT INTERNAL CIRCUIT (CPU COMMUNICATION) (REGULAR DIAGNOSIS); DTC 35-07: EPS CONTROL UNIT INTERNAL CIRCUIT (INHL/INHR PORTS) (INITIAL DIAGNOSIS/REGULAR DIAGNOSIS); DTC 36-02: EPS CONTROL UNIT INTERNAL CIRCUIT (INH OUTPUT CIRCUIT) (INITIAL DIAGNOSIS); DTC 37-01: EPS CONTROL UNIT INTERNAL CIRCUIT (STEP-UP CIRCUIT) (INITIAL DIAGNOSIS) )
51-01 Low/High Voltage for the Torque Sensor (VT1 and VT2) (Regular Diagnosis) (see DTC 35-05: EPS CONTROL UNIT INTERNAL CIRCUIT (EPS MOTOR/EPS CPU) (INITIAL DIAGNOSIS) )
51-02 Torque Sensor (VT3 Differential-amplification Function) (Regular Diagnosis) (see DTC 51-02: TORQUE SENSOR (VT3 DIFFERENTIAL-AMPLIFICATION FUNCTION) (REGULAR DIAGNOSIS); DTC 51-03: TORQUE SENSOR (VT1, VT2 RAPID CHANGE) (REGULAR DIAGNOSIS); DTC 51-06: TORQUE SENSOR (VT1, VT2 AVERAGE) (REGULAR DIAGNOSIS); DTC 51-07: TORQUE SENSOR (VT1, VT2 INITIAL CHECK) (INITIAL DIAGNOSIS) )
51-03 Torque Sensor (VT1, VT2 Rapid Change) (Regular Diagnosis) (see DTC 51-02: TORQUE SENSOR (VT3 DIFFERENTIAL-AMPLIFICATION FUNCTION) (REGULAR DIAGNOSIS); DTC 51-03: TORQUE SENSOR (VT1, VT2 RAPID CHANGE) (REGULAR DIAGNOSIS); DTC 51-06: TORQUE SENSOR (VT1, VT2 AVERAGE) (REGULAR DIAGNOSIS); DTC 51-07: TORQUE SENSOR (VT1, VT2 INITIAL CHECK) (INITIAL DIAGNOSIS) )
51-06 Torque Sensor (VT1, VT2 Average) (Regular Diagnosis) (see DTC 51-02: TORQUE SENSOR (VT3 DIFFERENTIAL-AMPLIFICATION FUNCTION) (REGULAR DIAGNOSIS); DTC 51-03: TORQUE SENSOR (VT1, VT2 RAPID CHANGE) (REGULAR DIAGNOSIS); DTC 51-06: TORQUE SENSOR (VT1, VT2 AVERAGE) (REGULAR DIAGNOSIS); DTC 51-07: TORQUE SENSOR (VT1, VT2 INITIAL CHECK) (INITIAL DIAGNOSIS) )
51-07 Torque Sensor (VT1, VT2 Initial Check) (Initial Diagnosis) (see DTC 51-02: TORQUE SENSOR (VT3 DIFFERENTIAL-AMPLIFICATION FUNCTION) (REGULAR DIAGNOSIS); DTC 51-03: TORQUE SENSOR (VT1, VT2 RAPID CHANGE) (REGULAR DIAGNOSIS); DTC 51-06: TORQUE SENSOR (VT1, VT2 AVERAGE) (REGULAR DIAGNOSIS); DTC 51-07: TORQUE SENSOR (VT1, VT2 INITIAL CHECK) (INITIAL DIAGNOSIS) )
61-04 Open/Short in the EPS Motor Harness (Steering Diagnosis) (see DTC 61-04: OPEN/SHORT IN THE EPS MOTOR HARNESS (STEERING DIAGNOSIS) )
71-01 EPS Motor Angle Sensor (SIN/COS Signals) (Steering Diagnosis) (see DTC 71-01: EPS MOTOR ANGLE SENSOR (SIN/COS SIGNALS) (STEERING DIAGNOSIS); DTC 71-02: EPS MOTOR ANGLE SENSOR (NEUTRAL POSITION LEARNING OF SIN/COS) (INITIAL DIAGNOSIS); DTC 71-03: EPS MOTOR ANGLE SENSOR (SIN/COS SIGNALS) (STEERING DIAGNOSIS) )
71-02 EPS Motor Angle Sensor (Neutral Position Learning of SIN/COS) (Initial Diagnosis) (see DTC 71-01: EPS MOTOR ANGLE SENSOR (SIN/COS SIGNALS) (STEERING DIAGNOSIS); DTC 71-02: EPS MOTOR ANGLE SENSOR (NEUTRAL POSITION LEARNING OF SIN/COS) (INITIAL DIAGNOSIS); DTC 71-03: EPS MOTOR ANGLE SENSOR (SIN/COS SIGNALS) (STEERING DIAGNOSIS) )
71-03 EPS Motor Angle Sensor (SIN/COS Signals) (Steering Diagnosis) (see DTC 71-01: EPS MOTOR ANGLE SENSOR (SIN/COS SIGNALS) (STEERING DIAGNOSIS); DTC 71-02: EPS MOTOR ANGLE SENSOR (NEUTRAL POSITION LEARNING OF SIN/COS) (INITIAL DIAGNOSIS); DTC 71-03: EPS MOTOR ANGLE SENSOR (SIN/COS SIGNALS) (STEERING DIAGNOSIS) )
71-04 EPS Motor Angle Sensor (Check Signals) (Regular Diagnosis) (see DTC 71-04: EPS MOTOR ANGLE SENSOR (CHECK SIGNALS) (REGULAR DIAGNOSIS) )
NOTE:
  • Initial diagnosis Done right after the engine starts and until the EPS indicator goes off
  • Regular diagnosis Done right after the initial diagnosis until the ignition switch is turned to LOCK (0), or press the engine start/stop button to select the OFF mode
  • Steering diagnosis Done during regular diagnosis while turning the steering wheel
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