2013 Subaru Outback Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE

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). >
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