Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR DTC
1. Turn the ignition switch to ON, and wait at least for 10 seconds.
2. Clear the DTC stored in memory (see DTC CHECK/CLEAR ).
3. Turn the ignition switch to LOCK, and wait at least for 10 seconds.
4. Turn the ignition switch to ON, and wait at least for 10 seconds.
5. Check the DTC (see DTC CHECK/CLEAR ).
  OK: DTC B1154/38 is output.
  
  HINT:
  
  Codes other than code B1154/38 may be output at this time, but they are not relevant to this check.
Fig 1: Checking For DTC
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: USE SIMULATION METHOD TO CHECK

OK: GO TO NEXT STEP
CHECK CONNECTION OF CONNECTOR
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
3. Check that the connectors are properly connected to the center airbag sensor and the curtain shield airbag sensor RH.
  OK: The connectors are connected.
NG: CONNECT CONNECTOR

OK: GO TO NEXT STEP
CHECK NO. 2 FLOOR WIRE
1. Using a service wire, connect CSR+ and CSR- of the S14 No. 2 floor wire connector on the curtain shield airbag sensor RH side.
2. Measure the resistance between CSR+ and CSR- of the C27 No. 2 floor wire connector on the center airbag sensor side.
  Standard resistance: Below 1 Ω
Fig 2: Checking No. 2 Floor Wire
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE NO. 2 FLOOR WIRE

OK: GO TO NEXT STEP
CHECK NO. 2 FLOOR WIRE
1. Using a service wire, connect VUCR and ESCR of the S14 No. 2 floor wire connector on the curtain shield airbag sensor RH side.
2. Measure the resistance between VUCR and ESCR of the C27 No. 2 floor wire connector on the center airbag sensor side.
  Standard resistance: Below 1 Ω
Fig 3: Checking No. 2 Floor Wire
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE NO. 2 FLOOR WIRE

OK: GO TO NEXT STEP
CHECK NO. 2 FLOOR WIRE (TO GROUND)
1. Measure the resistance between the body ground and each of VUCR, CSR+ and CSR- of the C27 No. 2 floor wire connector on the center airbag sensor side.
  Standard resistance: 10 kΩ or higher
Fig 4: Checking No. 2 Floor Wire (To Ground)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE NO. 2 FLOOR WIRE

OK: GO TO NEXT STEP
CHECK NO. 2 FLOOR WIRE (TO B+)
1. Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.
2. Turn the ignition switch to ON.
3. Measure the voltage between the body ground and each of VUCR, CSR+, CSR- and ESCR of the C27 No. 2 floor wire connector on the center airbag sensor side.
  Standard voltage: Below 1 V
Fig 5: Checking No. 2 Floor Wire (To B+)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE NO. 2 FLOOR WIRE

OK: GO TO NEXT STEP
CHECK CENTER AIRBAG SENSOR ASSEMBLY
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.
3. Connect the connector to the center airbag sensor.
4. Change the curtain shield airbag sensor LH position with RH position.
5. Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.
6. Turn the ignition switch to ON, and wait at least for 10 seconds.
7. Clear the DTC stored in memory (see DTC CHECK/CLEAR ).
8. Turn the ignition switch to LOCK, and wait at least for 10 seconds.
9. Turn the ignition switch to ON, and wait at least for 10 seconds.
10. Check the DTC (see DTC CHECK/CLEAR ).
  OK: DTC B1154/38 and B1155/39 are not output.
  
  HINT:
  
  Codes other than code B1154/38 or B1155/39 may be output at this time, but they are not relevant to this check.
Fig 6: Checking Center Airbag Sensor Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE CURTAIN SHIELD AIRBAG SENSOR ASSEMBLY LH (DTC B1155/39 IS OUTPUT)

NG: REPLACE CENTER AIRBAG SENSOR ASSEMBLY (DTC B1154/38 IS OUTPUT)

OK: USE SIMULATION METHOD TO CHECK