52B-DIAGNOSTIC TROUBLE CODE CHART<SRS-ECU>

CHECK CHART FOR DIAGNOSTIC TROUBLE CODES

caution

During diagnosis, a diagnostic trouble code (DTC) associated with another system may be set when the ignition switch is turned "ON" position with connector(s) disconnected. After completing the repair, confirm all systems for diagnostic trouble code(s). If diagnostic trouble code(s) are set, erase them all.

Inspect according to the inspection chart that is appropriate for the DTC.

Code No.	Diagnostic item	Reference page
B1400^*2	Driver's air bag module (1st squib) system (short circuit between squib circuit terminals)
B1401^*2	Driver's air bag module (1st squib) system (open circuit of squib circuit)
B1402^*2	Driver's air bag module (1st squib) system (shorted to squib circuit ground)
B1403^*2	Driver's air bag module (1st squib) system (shorted to squib circuit power supply)
B1404	Driver's air bag module (1st squib) activating circuit short-circuited
B1405	Driver's air bag module (1st squib) activating circuit open-circuited
B1406^*2	Malfunction of front impact sensor (RH)
B1407^*2	Front impact sensor (RH) voltage error
B1408^*2	Front impact sensor (RH) communication error
B1409^*2	Front impact sensor (RH) communication impossible
B1410^*2	Passenger's (front) air bag module (1st squib) system (short circuit between squib circuit terminals)
B1411^*2	Passenger's (front) air bag module (1st squib) system (open circuit of squib circuit)
B1412^*2	Passenger's (front) air bag module (1st squib) system (shorted to squib circuit ground)
B1413^*2	Passenger's (front) air bag module (1st squib) system (shorted to squib circuit power supply)
B1414	Passenger's (front) air bag module (1st squib) activating circuit short-circuited
B1415	Passenger's (front) air bag module (1st squib) activating circuit open-circuited
B1416^*2	Malfunction of inside front impact sensor (LH)
B1417^*2	Front impact sensor (LH) voltage error
B1418^*2	Front impact sensor (LH) communication error
B1419^*2	Front impact sensor (LH) communication impossible
B1420^*2	Side-airbag module (RH) (squib) system (short circuit between squib circuit terminals)
B1421^*2	Side-airbag module (RH) (squib) system (open circuit of squib circuit)
B1422^*2	Side-airbag module (RH) (squib) system (shorted to squib circuit ground)
B1423^*2	Side-airbag module (RH) (squib) system (shorted to squib circuit power supply)
B1424	Side-airbag module (RH) (squib) activating circuit short-circuited
B1425	Side-airbag module (RH) (squib) activating circuit open-circuited
B1426^*2	Malfunction of side impact sensor (front: RH)
B1427^*2	Side impact sensor (front: RH) voltage error
B1428^*2	Side impact sensor (front: RH) communication error
B1429^*2	Side impact sensor (front: RH) communication impossible
B1430^*2	Side-airbag module (LH) (squib) system (short circuit between squib circuit terminals)
B1431^*2	Side-airbag module (LH) (squib) system (open circuit of squib circuit)
B1432^*2	Side-airbag module (LH) (squib) system (shorted to squib circuit ground)
B1433^*2	Side-airbag module (LH) (squib) system (shorted to squib circuit power supply)
B1434	Side-airbag module (LH) (squib) activating circuit short-circuited
B1435	Side-airbag module (LH) (squib) activating circuit open-circuited
B1436^*2	Malfunction of side impact sensor (front: LH)
B1437^*2	Side impact sensor (front: LH) voltage error
B1438^*2	Side impact sensor (front: LH) communication error
B1439^*2	Side impact sensor (front: LH) communication impossible
B1440^*2	Curtain air bag module (RH) (squib) system (short circuit between squib circuit terminals)
B1441^*2	Curtain air bag module (RH) (squib) system (open circuit of squib circuit)
B1442^*2	Curtain air bag module (RH) (squib) system (shorted to squib circuit ground)
B1443^*2	Curtain air bag module (RH) (squib) system (shorted to squib circuit power supply)
B1444	Curtain air bag module (RH) (squib) activating circuit short-circuited
B1445	Curtain air bag module (RH) (squib) activating circuit open-circuited
B1446^*2	Malfunction of side impact sensor (rear: RH)
B1447^*2	Side impact sensor (rear: RH) voltage error
B1448^*2	Side impact sensor (rear: RH) communication error
B1449^*2	Side impact sensor (rear: RH) communication impossible
B1450^*2	Curtain air bag module (LH) (squib) system (short circuit between squib circuit terminals)
B1451^*2	Curtain air bag module (LH) (squib) system (open circuit of squib circuit)
B1452^*2	Curtain air bag module (LH) (squib) system (shorted to squib circuit ground)
B1453^*2	Curtain air bag module (LH) (squib) system (shorted to squib circuit power supply)
B1454	Curtain air bag module (LH) (squib) activating circuit short-circuited
B1455	Curtain air bag module (LH) (squib) activating circuit open-circuited
B1456^*2	Malfunction of side impact sensor (rear: LH)
B1457^*2	Side impact sensor (rear: LH) voltage error
B1458^*2	Side impact sensor (rear: LH) communication error
B1459^*2	Side impact sensor (rear: LH) communication impossible
B1466^*2	Analog G-sensor system in the SRS-ECU (front air bag)
B1476^*2	IG1 power supply open circuit (Fuse No. 15 circuit)
B1477^*2	IG1 power supply open circuit (Fuse No. 21 circuit)
B1478	SRS-ECU Backup capacitor circuit voltage too High
B1479	SRS-ECU Backup capacitor circuit voltage too Low
B1480^*2	Driver's air bag module (2nd squib) system (short circuit between squib circuit terminals)
B1481^*2	Driver's air bag module (2nd squib) system (open circuit of squib circuit)
B1482^*2	Driver's air bag module (2nd squib) system (shorted to squib circuit ground)
B1483^*2	Driver's air bag module (2nd squib) system (shorted to squib circuit power supply)
B1484	Driver's air bag module (2nd squib ignition drive circuit) system detected short circuit
B1485	Driver's air bag module (2nd squib ignition drive circuit) system detected open circuit
B1488^*2	Passenger's air bag OFF indicator light (short circuit)
B1489^*2	Passenger's air bag OFF indicator light (open circuit)
B1490^*2	Passenger's (front) air bag module (2nd squib) system (short circuit between squib circuit terminals)
B1491^*2	Passenger's (front) air bag module (2nd squib) system (open circuit of squib circuit)
B1492^*2	Passenger's (front) air bag module (2nd squib) system (shorted to squib circuit ground)
B1493^*2	Passenger's (front) air bag module (2nd squib) system (shorted to squib circuit power supply)
B1494	Passenger’s (front) air bag module (2nd squib ignition drive circuit) system detected short circuit
B1495	Passenger’s (front) air bag module (2nd squib ignition drive circuit) system detected open circuit
B1496^*3	SRS-ECU non-volatile memory (EEPROM^*1)
B1498	SRS-ECU abnormal condition in ROM or RAM
B1499^*3	Air bag deployment determined by SRS-ECU
B1506^*2	Seat slide sensor system fault (open in the seat slide sensor circuit)
B1507^*2	Seat slide sensor system fault ground circuit (short-circuited to ground)
B1508^*2	Seat slide sensor system fault power supply circuit (short-circuited to power supply)
B1509^*2	Incorrect installation of SRS-ECU
B1519^*2	SRS-ECU connector lock out of order
B1520^*2	Seat belt switch (driver’s side) malfunction
B1527^*2	Seat belt switch (driver’s side) circuit open
B1528^*2	Seat belt switch (driver’s side) circuit (ground side) shorted)
B1529^*2	Seat belt switch (driver’s side) system fault power supply circuit (short-circuited to power supply)
B1530^*2	Seat belt switch (passenger’s side) malfunction
B1537^*2	Seat belt switch (passenger’s side) circuit open
B1538^*2	Seat belt switch (passenger’s side) circuit (ground side) shorted
B1539^*2	Seat belt switch (passenger’s side) system fault power supply circuit (short-circuited to power supply)
B1556^*2	Driver’s seat slide sensor malfunction
B1557	SRS-ECU application specific integrated circuit
B1558^*2	OCM (Occupant Classification-ECU) DTC Present
B1603^*2	Seat belt pre-tensioner (driver’s side) (squib) system (short circuit between squib circuit terminals)
B1604^*2	Seat belt pre-tensioner (driver’s side) (squib) system (open circuit of squib circuit)
B1605^*2	Seat belt pre-tensioner (driver’s side) (squib) system (shorted to squib circuit ground)
B1606^*2	Seat belt pre-tensioner (driver’s side) (squib) system (shorted to squib circuit power supply)
B1607	Seat belt pre-tensioner (driver’s side) activating circuit short-circuited
B1608	Seat belt pre-tensioner (driver’s side) activating circuit open-circuited
B1609^*2	Seat belt pre-tensioner (passenger’s side) (squib) system (short circuit between squib circuit terminals)
B1610^*2	Seat belt pre-tensioner (passenger’s side) (squib) system (open circuit of squib circuit)
B1611^*2	Seat belt pre-tensioner (passenger’s side) (squib) system (shorted to squib circuit ground)
B1612^*2	Seat belt pre-tensioner (passenger’s side) (squib) system (shorted to squib circuit power supply)
B1613	Seat belt pre-tensioner (passenger’s side) (squib) activating circuit short-circuited
B1614	Seat belt pre-tensioner (passenger’s side) (squib) activating circuit open-circuited
B1616	SRS-ECU safing G-sensor (for front air bag electronic safing circuit failure)
B1617^*2	Roll over sensor malfunction
B1618^*2	SRS-ECU safing G-sensor (Z axis low G-sensor failure)
B1631^*2	Driver's knee air bag module (squib) system (short circuit between squib circuit terminals)
B1632^*2	Driver's knee air bag module (squib) system (open circuit of squib circuit)
B1633^*2	Driver's knee air bag module (squib) system (shorted to squib circuit ground)
B1634^*2	Driver's knee air bag module (squib) system (shorted to squib circuit power supply)
B1635	Driver's knee air bag module (squib) activating circuit short-circuited
B1636	Driver's knee air bag module (squib) activating circuit open-circuited
B1646^*2	Coding data mismatch
B1699^*3	SRS-ECU collective deployment
U0154^*2	Occupant classification-ECU CAN timeout
U1100^*2	Engine CAN timeout
U1102^*2	ASC/TCL/ABS timeout/Not equipped
U1104^*2	SAS CAN timeout/Not equipped
U1108^*2	Combination meter CAN timeout
U1109^*2	ETACS CAN timeout
U1190^*2	No receive fault detect signal
U1195	Coding not completed
U1199	VIN code not programmed
U119A	VIN code mismatch

note	^1: Electrically Erasable Programmable ROM ^2: This diagnostic trouble code will remain in memory and the SRS warning light will be switched off when the system returns to normal condition. ^*3: This diagnostic trouble code cannot be erased by "Erase diagnostic trouble codes" function.