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PRE-CRASH SAFETY SYSTEM, Diagnostic DTC:B2015, B2016, B2020, B2021, B2025, B2026, B2027, B2030, B2031, B2032, B2035, B2040, B2041, B2043, B2047

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DTC Code DTC Name
B2015 Open in Right Side Upper MOS
B2016 Open in Right Side Lower MOS
B2020 Open in Left Side Upper MOS
B2021 Open in Left Side Lower MOS
B2025 Right Side Current Detection Circuit Malfunction Hi
B2026 Right Side Current Detection Circuit Malfunction Lo
B2027 Right Side Over-Current Malfunction
B2030 Left Side Current Detection Circuit Malfunction Hi
B2031 Left Side Current Detection Circuit Malfunction Lo
B2032 Left Side Over-Current Malfunction
B2035 Power Supply Relay Adherence Malfunction
B2040 EEPROM Malfunction
B2041 Fall of Raised Voltage
B2043 Fall of B+ Voltage
B2047 Seat Belt Control ECU Inner Circuit Malfunction
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DESCRIPTION

The DTCs above are stored during the self diagnosis of the seat belt control ECU.

DTC Code DTC Detection Condition Trouble Area
B2015 Open in the right side upper MOS. Seat belt control ECU
B2016 Open in the right side lower MOS. Seat belt control ECU
B2020 Open in the left side upper MOS. Seat belt control ECU
B2021 Open in the left side lower MOS. Seat belt control ECU
B2025 Malfunction in the right side current detection HI circuit. Seat belt control ECU
B2026 Malfunction in the right side current detection LO circuit. Seat belt control ECU
B2027 Overcurrent in the right side circuit. Seat belt control ECU
B2030 Malfunction in the left side current detection HI circuit. Seat belt control ECU
B2031 Malfunction in the left side current detection LO circuit. Seat belt control ECU
B2032 Overcurrent in the left side circuit. Seat belt control ECU
B2035 Adherence malfunction in the power supply relay. Seat belt control ECU
B2040 EEPROM malfunction. Seat belt control ECU
B2041 Decline in raised voltage. Seat belt control ECU
B2043 Decline in B+ voltage. Seat belt control ECU
B2047 Malfunction in the inner circuit of the seat belt control ECU. Seat belt control ECU
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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    CHECK DTC (PRE-CRASH SAFETY SYSTEM)


    1. Using the intelligent tester, enter the following menus: Body / Pre-Crash / Trouble Code.

    2. Clear the DTCs (Click here).

    3. Check for DTCs (Click here).

      Table 1. Result
      Result Proceed to

      OK

      (DTC is not output)

      		 A

      NG

      (for LHD)

      		 B

      NG

      (for RHD

      		 C

  2. Click here

    USE SIMULATION METHOD TO CHECKClick here

  3. Click here

    REPLACE SEAT BELT CONTROL ECUClick here

  4. Click here

    REPLACE SEAT BELT CONTROL ECUClick here