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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.
  1. DTCS FOR SUPPLEMENTAL RESTRAINT SYSTEM 

    If a malfunction code is displayed during the DTC check, check the circuit listed for the code in the table below (Proceed to the page listed for that circuit).

    HINT:

    • When the SRS warning light remains on and the DTC output is the normal system code, a voltage source drop is likely to occur. This malfunction is not stored in memory by the center airbag sensor assembly. If the power source voltage returns to normal, the SRS warning light will automatically go off.
    • When 2 or more codes are indicated, the code with the lower number appears first.
    • If a code is not listed on the display chart, the center airbag sensor assembly may have failed.
    • In the case of any malfunction concerning an open circuit, short to ground, or short to B+ due to a squib, other trouble codes may not be detected. In this case, repair the malfunction currently indicated and then perform malfunction diagnosis again.
    • When DTC B1150/23 is detected as a result of troubleshooting for the Supplemental Restraint System, perform troubleshooting for the occupant detection system as shown in the chart below.

    AIRBAG SYSTEM 

    DTC INDEX REFERENCE

    DTC No. Detection Item Trouble Area SRS Warning Light
    B0100/13  Short in Driver Side Squib Circuit
    1. Steering pad (Driver side squib)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B0101/14  Open in Driver Side Squib Circuit
    1. Steering pad (Driver side squib)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B0102/11  Short to GND in Driver Side Squib Circuit
    1. Steering pad (Driver side squib)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B0103/12  Short to B+ in Driver Side Squib Circuit
    1. Steering pad (Driver side squib)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B0105/53  Short in Front Passenger Side Squib Circuit
    1. Front passenger airbag assembly (Front passenger side squib)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B0106/54  Open in Front Passenger Side Squib Circuit
    1. Front passenger airbag assembly (Front passenger side squib)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B0107/51  Short to GND in Front Passenger Side Squib Circuit
    1. Front passenger airbag assembly (Front passenger side squib)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B0108/52  Short to B+ in Front Passenger Side Squib Circuit
    1. Front passenger airbag assembly (Front passenger side squib)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B0110/43  Short in Side Squib RH Circuit
    1. Front seat airbag assembly RH (Side squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0111/44  Open in Side Squib RH Circuit
    1. Front seat airbag assembly RH (Side squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0112/41  Short to GND in Side Squib RH Circuit
    1. Front seat airbag assembly RH (Side squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0113/42  Short to B+ in Side Squib RH Circuit
    1. Front seat airbag assembly RH (Side squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0115/47  Short in Side Squib LH Circuit
    1. Front seat airbag assembly LH (Side squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0116/48  Open in Side Squib LH Circuit
    1. Front seat airbag assembly LH (Side squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0117/45  Short to GND in Side Squib LH Circuit
    1. Front seat airbag assembly LH (Side squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0118/46  Short to B+ in Side Squib LH Circuit
    1. Front seat airbag assembly LH (Side squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0126/27  Seat Belt Buckle Switch LH Circuit Malfunction
    1. Front seat inner belt assembly LH (Seat belt buckle switch LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 ON
    B0130/63  Short in Front Pretensioner Squib RH Circuit
    1. Front seat outer belt assembly RH (Front pretensioner squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0131/64  Open in Front Pretensioner Squib RH Circuit
    1. Front seat outer belt assembly RH (Front pretensioner squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0132/61  Short to GND in Front Pretensioner Squib RH Circuit
    1. Front seat outer belt assembly RH (Front pretensioner squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0133/62  Short to B+ in Front Pretensioner Squib RH Circuit
    1. Front seat outer belt assembly RH (Front pretensioner squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B0135/73  Short in Front Pretensioner Squib LH Circuit
    1. Front seat outer belt assembly LH (Front pretensioner squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0136/74  Open in Front Pretensioner Squib LH Circuit
    1. Front seat outer belt assembly LH (Front pretensioner squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0137/71  Short to GND in Front Pretensioner Squib LH Circuit
    1. Front seat outer belt assembly LH (Front pretensioner squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B0138/72  Short to B+ in Front Pretensioner Squib LH Circuit
    1. Front seat outer belt assembly LH (Front pretensioner squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1100/31  Center Airbag Sensor Assembly Malfunction
    1. Center airbag sensor assembly
    2. Engine room main wire
    3. Instrument panel wire
    		 ON
    B1135/24  Half Connection in Center Airbag Sensor Assembly Connectors
    1. Electrical connection check mechanism
    2. Center airbag sensor assembly
    		 ON
    B1140/32  Side Airbag Sensor Assembly RH Circuit Malfunction
    1. Side airbag sensor RH
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B1141/33  Side Airbag Sensor Assembly LH Circuit Malfunction
    1. Side airbag sensor LH
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1148/36  Front Airbag Sensor RH Circuit Malfunction
    1. Front airbag sensor RH
    2. Center airbag sensor assembly
    3. Engine room main wire
    4. Instrument panel wire
    		 ON
    B1149/37  Front Airbag Sensor LH Circuit Malfunction
    1. Front airbag sensor LH
    2. Center airbag sensor assembly
    3. Engine room main wire
    4. Instrument panel wire
    		 ON
    B1150/23  Occupant Classification System Malfunction
    1. Occupant classification ECU
    2. Center airbag sensor assembly
    3. Floor wire
    4. Front seat wire RH
    		 ON
    B1152/28  Passenger Airbag ON/OFF Indicator Circuit Malfunction
    1. Center cluster integration switch assembly (w/o LEXUS Navigation system)
    2. Multi-display assembly (w/ LEXUS Navigation system)
    3. Center airbag sensor assembly
    4. Instrument panel wire
    5. Instrument panel wire No.2
    		 ON
    B1153/25  Seat Position Airbag Sensor Circuit Malfunction
    1. Seat position sensor
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 ON
    B1154/38  Rear Airbag Sensor RH Circuit Malfunction
    1. Rear airbag sensor RH
    2. Center airbag sensor assembly
    3. Floor wire
    		 Blink
    B1155/39  Rear Airbag Sensor LH Circuit Malfunction
    1. Rear airbag sensor LH
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1160/83  Short in Curtain Shield Squib RH Circuit
    1. Curtain shield airbag assembly RH (Curtain shield squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    4. Roof wire No.2
    		 Blink
    B1161/84  Open in Curtain Shield Squib RH Circuit
    1. Curtain shield airbag assembly RH (Curtain shield squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    4. Roof wire No.2
    		 Blink
    B1162/81  Short to GND in Curtain Shield Squib RH Circuit
    1. Curtain shield airbag assembly RH (Curtain shield squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    4. Roof wire No.2
    		 Blink
    B1163/82  Short to B+ in Curtain Shield Squib RH Circuit
    1. Curtain shield airbag assembly RH (Curtain shield squib RH)
    2. Center airbag sensor assembly
    3. Floor wire
    4. Roof wire No.2
    		 Blink
    B1165/87  Short in Curtain Shield Squib LH Circuit
    1. Curtain shield airbag assembly LH (Curtain shield squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1166/88  Open in Curtain Shield Squib LH Circuit
    1. Curtain shield airbag assembly LH (Curtain shield squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1167/85  Short to GND in Curtain Shield Squib LH Circuit
    1. Curtain shield airbag assembly LH (Curtain shield squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1168/86  Short to B+ in Curtain Shield Squib LH Circuit
    1. Curtain shield airbag assembly LH (Curtain shield squib LH)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 Blink
    B1180/17  Short in Driver Side Squib 2nd Step Circuit
    1. Steering pad (Driver side squib 2nd step)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B1181/18  Open in Driver Side Squib 2nd Step Circuit
    1. Steering pad (Driver side squib 2nd step)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B1182/19  Short to GND in Driver Side Squib 2nd Step Circuit
    1. Steering pad (Driver side squib 2nd step)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B1183/22  Short to B+ in Driver Side Squib 2nd Step Circuit
    1. Steering pad (Driver side squib 2nd step)
    2. Spiral cable
    3. Center airbag sensor assembly
    4. Instrument panel wire
    		 ON
    B1185/57  Short in Front Passenger Side Squib 2nd Step Circuit
    1. Front passenger airbag assembly (Front passenger side squib 2nd step)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B1186/58  Open in Front Passenger Side Squib 2nd Step Circuit
    1. Front passenger airbag assembly (Front passenger side squib 2nd step)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B1187/55  Short to GND in Front Passenger Side Squib 2nd Step Circuit
    1. Front passenger airbag assembly (Front passenger side squib 2nd step)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B1188/56  Short to B+ in Front Passenger Side Squib 2nd Step Circuit
    1. Front passenger airbag assembly (Front passenger side squib 2nd step)
    2. Center airbag sensor assembly
    3. Instrument panel wire
    		 ON
    B1650/49  Short in Driver Side Knee Airbag Squib Circuit
    1. Driver side knee airbag assembly (Driver side knee airbag squib)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 ON
    B1651/49  Open in Driver Side Knee Airbag Squib Circuit
    1. Driver side knee airbag assembly (Driver side knee airbag squib)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 ON
    B1652/49  Short to GND in Driver Side Knee Airbag Squib Circuit
    1. Driver side knee airbag assembly (Driver side knee airbag squib)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 ON
    B1653/49  Short to B+ in Driver Side Knee Airbag Squib Circuit
    1. Driver side knee airbag assembly (Driver side knee airbag squib)
    2. Center airbag sensor assembly
    3. Floor wire No.2
    		 ON
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