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Keyless Access DTCS

KEYLESS ACCESS DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC DESCRIPTION Reference
U0073 Detected when CAN line abnormality is detected. < Refer to DTC U0073 CONTROL MODULE COMMUNICATION BUS "A" OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
U0140 Detected when CAN data from BIU does not arrive. < Refer to DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
U0422 Detected when CAN data from BIU is abnormal. < Refer to DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B1242 When short circuit occurs in harness between keyless access CM and receiver. < Refer to DTC B1242 WIRELESS TUNER ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2271
  • When malfunction is detected in IG1 and IG2 drive circuits in the keyless access CM.
  • When malfunction is detected in IG hold circuit in the keyless access CM.
< Refer to DTC B2271 IGN FUSE BLOWN OR IGN CIRCUIT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2274 When malfunction is detected in ACC relay drive circuit in the keyless access CM or external circuit. < Refer to DTC B2274 ACC MONITOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2275
  • When malfunction is detected in engine start permission signal output circuit in the keyless access CM.
  • When malfunction is detected in external engine start permission signal circuit.
< Refer to DTC B2275 STSW CIRCUIT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2276 When input error occurs in accessory relay cut input signal of keyless access CM. < Refer to DTC B2276 ACCR SIGNAL ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2277 When the water-submersion detection circuit integrated into the keyless access CM detects the water submersion. < Refer to DTC B2277 SUBMERGING CIRCUIT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2282 When the vehicle speed signal transmitted from the combination meter via solid line and the vehicle speed signal transmitted via CAN communication line do not match. < Refer to DTC B2282 VEHICLE SPEED SIGNAL ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2283 Either of the following malfunctions is detected. (Vehicle speed sensor failure is detected.)
  • Vehicle speed signal failure detection

  1. Excessive deceleration detection
    • Vehicle speed signal failure detection
  2. Engine speed interlock detection
< Refer to DTC B2283 VEHICLE SPEED SENSOR FAULT DETECTION , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2284 When the brake signal transmitted via solid line and the brake signal transmitted via CAN communication line do not match. < Refer to DTC B2284 BRAKE SIGNAL (CABLE-INFORMATION DOES NOT MATCH TO BEAN-INFORMATION) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2285 When the steering lock position signal transmitted from the steering lock CM via solid line and the steering lock position signal transmitted via LIN communication system do not match. < Refer to DTC B2285 STEERING LOCK POSITION SIGNAL ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2286 When the engine speed signal transmitted from the ECM via solid line and the engine speed signal transmitted via CAN communication line do not match. < Refer to DTC B2286 DRIVING POSSIBLE SIGNAL ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2779 When the keyless access CM does not respond to engine start even when the remote control engine starter is ON, or when there is a code mismatch. < Refer to DTC B2779 REMOTE CONTROL ENGINE STARTER COMMUNICATION COLLATION NG , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2781
  • When malfunction is detected in lock/unlock position detection sensor.
  • When the open or short circuit in the steering lock motor drive circuit is detected.
< Refer to DTC B2781 STEERING LOCK ECU OPEN/SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2782 When the open or short circuit in the steering lock motor power supply circuit is detected. < Refer to DTC B2782 STEERING LOCK POWER SUPPLY CIRCUIT ABNORMAL (SMART ECU-SIDE ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2784 When open or short circuit occurs in the antenna coil. < Refer to DTC B2784 ANTENNA COIL FAULT , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2785 When the keyless access CM detects the collation system LIN bus communication error three times in a row. < Refer to DTC B2785 LIN COMMUNICATION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2786 When communication between keyless access CM and steering lock CM is interrupted for a set amount of time. < Refer to DTC B2786 NO RESPONSE FROM STEERING LOCK ECU , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2788 When mismatch occurs in the IG1 input of the steering lock CM between LIN communication line input and solid line input. < Refer to DTC B2788 IGN1 INPUT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2789
  • When communication between keyless access CM and ID code box is interrupted for a set amount of time.
  • Open or short circuit in the wiring harness between keyless access CM and ID code box
< Refer to DTC B2789 ID CODE BOX NO RESPONSE , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B278A When the power supply circuit of the push button ignition switch is shorted to ground. < Refer to DTC B278A ABNORMAL IMMOBILIZER POWER SUPPLY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B278D
  • When ID code box ON input is detected while the ID code box setting is set to OFF.
  • When ID code box LIN signal is received while the ID code box setting is set to OFF.
< Refer to DTC B278D ID CODE BOX RECOGNITION JUDGMENT ABNORMAL , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B2790 An error has occurred inside the ID code box. < Refer to DTC B2790 ID CODE BOX ABNORMAL (EEPROM ABNORMAL) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B27A5 When open circuit occurs in the harness between keyless access CM and front interior antenna. < Refer to DTC B27A5 FRONT INTERNAL ANTENNA OUTPUT STAGE OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B27A6 When open circuit occurs in the harness between keyless access CM and rear interior antenna. < Refer to DTC B27A6 REAR INTERNAL ANTENNA OUTPUT STAGE OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B27A7 When open circuit occurs in the harness between keyless access CM and rear interior antenna. < Refer to DTC B27A7 TRUNK/REAR GATE INTERNAL ANTENNA OUTPUT STAGE OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B27A8 When open circuit occurs in the harness between keyless access CM and rear exterior antenna. < Refer to DTC B27A8 TRUNK/REAR GATE EXTERNAL ANTENNA OUTPUT STAGE OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
ECM DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC DESCRIPTION Reference
B1571 Reference code incompatibility between keyless access CM and ECM < Refer to DTC B1571 REFERENCE CODE INCOMPATIBILITY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B1572 Communication error between keyless access CM and ECM < Refer to DTC B1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B1576 ECM malfunctioning < Refer to DTC B1576 EGI CONTROL MODULE EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
B1577 Keyless access CM malfunctioning < Refer to DTC B1577 IMM CONTROL MODULE EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
P1571 Reference code incompatibility between keyless access CM and ECM < Refer to DTC P1571 REFERENCE CODE INCOMPATIBILITY , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
P1572 Communication error between keyless access CM and ECM < Refer to DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
P1576 ECM malfunctioning < Refer to DTC P1576 EGI CONTROL MODULE EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >
P1577 Keyless access CM malfunctioning < Refer to DTC P1577 IMM CONTROL MODULE EEPROM , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >