CHECK CHART FOR DIAGNOSIS CODES




Code No.
Diagnosis item
Reference Page
B1400*2
Driver’s air bag module (squib) system (short-circuited between terminals of the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1401*2
Driver’s air bag module (squib) system (open-circuited in the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1402*2
Driver’s air bag module (squib) system (short-circuited to the earth)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1403*2
Driver’s air bag module (squib) system (short-circuited to the power supply)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1404*3
Driver’s air bag module (squib ignition drive circuit) system detected short circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1405*3
Driver’s air bag module (squib ignition drive circuit) system detected open circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1410*2
Passenger’s (front) air bag module (squib) system (short-circuited between terminals of the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1411*2
Passenger’s (front) air bag module (squib) system (open-circuited in the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1412*2
Passenger’s (front) air bag module (squib) system (short-circuited to the earth)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1413*2
Passenger’s (front) air bag module (squib) system (short-circuited to the power supply)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1414*3
Passenger’s (front) air bag module (squib ignition drive circuit) system detected short circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1415*3
Passenger’s (front) air bag module (squib ignition drive circuit) system detected open circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1420*2
Side-airbag module (RH) (squib) system (short-circuit between terminals of the squib circuit)

B1421*2
Side-airbag module (RH) (squib) system (open-circuited in the squib circuit)

B1422*2
Side-airbag module (RH) (squib) system (short-circuited to the earth)

B1423*2
Side-airbag module (RH) (squib) system (short-circuited to the power supply)

B1424*3
Side-airbag module (RH) (squib ignition drive circuit) system detected short circuit

B1425*3
Side-airbag module (RH) (squib ignition drive circuit) system detected open circuit

B1426*3
G-sensor of side impact sensor (RH) failure

B1427*2
Side impact sensor (RH) voltage error

B1428*2
Side impact sensor (RH) communication error

B1429*2
Side impact sensor (RH) communication impossible

B1430*2
Side-airbag module (LH) (squib) system (short-circuit between terminals of the squib circuit)

B1431*2
Side-airbag module (LH) (squib) system (open-circuited in the squib circuit)

B1432*2
Side-airbag module (LH) (squib) system (short-circuited to the earth)

B1433*2
Side-airbag module (LH) (squib) system (short-circuited to the power supply)

B1434*3
Side-airbag module (LH) (squib ignition drive circuit) system detected short circuit

B1435*3
Side-airbag module (LH) (squib ignition drive circuit) system detected open circuit

B1436*3
G-sensor of side impact sensor (LH) failure

B1437*2
Side impact sensor (LH) voltage error

B1438*2
Side impact sensor (LH) communication error

B1439*2
Side impact sensor (LH) communication impossible

B1440*2
Curtain air bag module (RH) (squib) system (short-circuited between terminals of the squib circuit)

B1441*2
Curtain air bag module (RH) (squib) system (open-circuited in the squib circuit)

B1442*2
Curtain air bag module (RH) (squib) system (short-circuited to the earth)

B1443*2
Curtain air bag module (RH) (squib) system (short-circuited to the power supply)

B1444*3
Curtain air bag module (RH) (squib ignition drive circuit) system detected open circuit

B1445*3
Curtain air bag module (RH) (squib ignition drive circuit) system (short-circuit between terminals of the squib circuit)

B1450*2
Curtain air bag module (LH) (squib) system (short-circuited between terminals of the squib circuit)

B1451*2
Curtain air bag module (LH) (squib) system (open-circuited in the squib circuit)

B1452*2
Curtain air bag module (LH) (squib) system (short-circuited to the earth)

B1453*2
Curtain air bag module (LH) (squib) system (short-circuited to the power supply)

B1454*3
Curtain air bag module (LH) (squib ignition drive circuit) system detected short circuit

B1455*3
Curtain air bag module (LH) (passenger’s side) (squib ignition drive circuit) system detected open circuit

B1466*3
Analogue G-sensor system in the SRS-ECU (front air bag)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1467*3
Safing G-sensor open circuit (front air bag)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1468*3
Safing G-sensor short circuit (front air bag)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1469*3
Analogue G-sensor system in the SRS-ECU (side air bag)

B1476*1
Power supply voltage (IG1 (A) voltage) drops abnormally.
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1477*1
Power supply voltage (IG1 (B) voltage) drops abnormally.
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1478*3
SRS-ECU capacitor circuit voltage too high
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1479*3
SRS-ECU capacitor circuit voltage too low
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1496*3
SRS-ECU non-volatile memory (EEPROM)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1497*3
SRS-ECU application specific integrated circuit (for frontal activation)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1498*3
SRS-ECU ROM or RAM
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1499*3
Collision decision
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1509*1
Incorrect installation of SRS-ECU
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1519*2
SRS-ECU connector lock out of order
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1550*3
SRS warning lamp drive circuit malfunction
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1551*2
SRS warning lamp circuit malfunction

Lamp does not illuminate
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
Lamp does not switch off
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1557*3
SRS-ECU application specific integrated circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1595*2
Front impact sensor (RH) system
Short circuit in the sensor
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1596*2
Open circuit in the sensor
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1597*2
Short circuit in the earth
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1598*2
Short circuit in the power supply
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1599*2
Front impact sensor (LH) system
Short circuit in the sensor
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1600*2
Open circuit in the sensor
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1601*2
Short circuit in the earth
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1602*2
Short circuit in the power supply
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1603*2
Seat belt pre-tensioner (driver’s side) (squib) system (short-circuited between terminals of the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1604*2
Seat belt pre-tensioner (driver’s side) (squib) system (open-circuited in the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1605*2
Seat belt pre-tensioner (driver’s side) (squib) system (short-circuited to the earth)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1606*2
Seat belt pre-tensioner (driver’s side) (squib) system (short-circuited to the power supply)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1607*3
Seat belt pre-tensioner (driver’s side) (squib ignition drive circuit) system detected short circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1608*3
Seat belt pre-tensioner (driver’s side) (squib ignition drive circuit) system detected open circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1609*2
Seat belt pre-tensioner (passenger’s side) (squib) system (short-circuit between terminals of the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1610*2
Seat belt pre-tensioner (passenger’s side) (squib) system (open-circuited in the squib circuit)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1611*2
Seat belt pre-tensioner (passenger’s side) (squib) system (short-circuited to the earth)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1612*2
Seat belt pre-tensioner (passenger’s side) (squib) system (short-circuited to the power supply)
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1613*3
Seat belt pre-tensioner (passenger’s side) (squib ignition drive circuit) system detected short circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
B1614*3
Seat belt pre-tensioner (passenger’s side) (squib ignition drive circuit) system detected open circuit
<vehicles without side-airbag and curtain air bag>, <vehicles with side-airbag and curtain air bag>
note
  • *1: This diagnosis code will remain in memory and the SRS warning lamp will be switched off when the system returns to normal condition.
  • *2: This diagnosis code will remain in memory and the SRS warning lamp will be switched on even if the system returns to normal condition.
  • *3: This diagnosis code cannot be erased by "Erase diagnosis codes" function.