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Occupant Classification System (Diagnostic Codes & Symptom Tests): Diagnosis Lexus ES XV60

Airbag 4 illustrations ~4137 words

INSPECTION PROCEDURE

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

HINT

  1. If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to see under the seat cushion.
  2. In the above case, lift and hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation.

Scheme 252

Scheme 252: PROCEDURE
Scheme 252: PROCEDURE
  1. CHECK CONNECTORS Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Check that the connectors are properly connected to the occupant detection ECU and front seat inner belt assembly RH. OK The connectors are properly connected. HINT: If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection. Disconnect the connectors from the occupant detection ECU and front seat inner belt assembly RH. Check that the terminals of the connectors are not damaged. OK The terminals are not deformed or damaged. NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  2. CHECK FRONT SEAT WIRE RH (SHORT TO B+) Connect the cable to the negative (-) battery terminal. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition W23-8 (BSW) - Body ground Engine switch on (IG) Below 1 V W23-5 (BGND) - Body ground Engine switch on (IG) Below 1 V Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. TEXT IN ILLUSTRATION *1 Front Seat Inner Belt Assembly RH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  3. CHECK FRONT SEAT WIRE RH (OPEN) Using a service wire, connect terminals 1 (BSW) and 2 (BGND) of connector C. NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting the wire. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W23-8 (BSW) - W23-5 (BGND) Always Below 1 ohms Disconnect the service wire from connector C. TEXT IN ILLUSTRATION *1 Front Seat Inner Belt Assembly RH *2 Occupant Detection ECU *3 Front Seat Wire RH *4 Service Wire *a Front view of wire harness connector (to Occupant Detection ECU) *b Front view of wire harness connector (to Front Seat Inner Belt Assembly RH) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  4. CHECK FRONT SEAT WIRE RH (SHORT) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W23-8 (BSW) - W23-5 (BGND) Always 1 Mohms or higher TEXT IN ILLUSTRATION *1 Front Seat Inner Belt Assembly RH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  5. CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W23-8 (BSW) - Body ground Always 1 Mohms or higher W23-5 (BGND) - Body ground Always 1 Mohms or higher TEXT IN ILLUSTRATION *1 Front Seat Inner Belt Assembly RH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  6. CHECK DTC Connect the connectors to the occupant detection ECU and front seat inner belt assembly RH. Connect the cable to the negative (-) battery terminal. Clear the DTCs stored in the occupant detection ECU. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . Clear the DTCs stored in the airbag sensor assembly. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598650-S20074771912014021400000) . Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . OK DTC B1771 is not output. HINT: Codes other than DTC B1771 may be output at this time, but they are not related to this check. Turn the engine switch off. NG --> See step 7 OK --> See step 10
  7. CHECK FRONT SEAT INNER BELT ASSEMBLY RH Disconnect the cable from the negative (-) battery terminal. Replace the front seat inner belt assembly RH with a known good one. Refer to «REMOVAL [06/2012 - ]»(ref-598452-S29894036462014021400000) . HINT: Perform the following inspection using known good parts from another vehicle if possible. Connect the cable to the negative (-) battery terminal. Clear the DTCs stored in the occupant detection ECU. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . Clear the DTCs stored in the airbag sensor assembly. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598650-S20074771912014021400000) . Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . OK DTC B1771 is not output. HINT: Codes other than DTC B1771 may be output at this time, but they are not related to this check. Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Restore the front seat inner belt assembly RH that was installed for testing to its original location. Refer to «REMOVAL [06/2012 - ]»(ref-598452-S29894036462014021400000) . NG --> See step 8 OK --> See step 11
  8. REPLACE OCCUPANT DETECTION ECU Disconnect the cable from the negative (-) battery terminal. Replace the occupant detection ECU with a new one. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  9. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  10. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ]»(ref-598449-S34618498472014021400000)
  11. REPLACE FRONT SEAT INNER BELT ASSEMBLY RH. Refer to «REMOVAL [06/2012 - ]»(ref-598452-S29894036462014021400000)

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

HINT

  1. If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to see under the seat cushion.
  2. In the above case, lift and hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation.

Scheme 253

Scheme 253: PROCEDURE
Scheme 253: PROCEDURE
  1. CHECK CONNECTORS Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Check that the connectors are properly connected to the occupant detection ECU and rear occupant classification sensor LH. OK The connectors are properly connected. HINT: If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection. Disconnect the connectors from the occupant detection ECU and rear occupant classification sensor LH. Check that the terminals of the connectors are not damaged. OK The terminals are not deformed or damaged. NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  2. CHECK FRONT SEAT WIRE RH (SHORT TO B+) Connect the cable to the negative (-) battery terminal. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition W22-1 (SVC3) - Body ground Engine switch on (IG) Below 1 V W22-3 (SIG3) - Body ground Engine switch on (IG) Below 1 V W22-5 (SGD3) - Body ground Engine switch on (IG) Below 1 V Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor LH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> See step 12 OK: Go to next step
  3. CHECK FRONT SEAT WIRE RH (OPEN) Using a service wire, connect terminals 1 (SVC3) and 3 (SGD3), and connect terminals 2 (SIG3) and 3 (SGD3) of connector C. NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting the wire. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W22-1 (SVC3) - W22-5 (SGD3) Always Below 1 ohms W22-3 (SIG3) - W22-5 (SGD3) Always Below 1 ohms Disconnect the service wire from connector C. TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor LH *2 Occupant Detection ECU *3 Front Seat Wire RH *4 Service Wire *a Front view of wire harness connector (to Occupant Detection ECU) *b Front view of wire harness connector (to Rear Occupant Classification Sensor LH) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  4. CHECK FRONT SEAT WIRE RH (SHORT) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W22-1 (SVC3) - W22-5 (SGD3) Always 1 Mohms or higher W22-3 (SIG3) - W22-5 (SGD3) Always 1 Mohms or higher W22-1 (SVC3) - W22-3 (SIG3) Always 1 Mohms or higher TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor LH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  5. CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) Measure the resistance according to value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W22-1 (SVC3) - Body ground Always 1 Mohms or higher W22-3 (SIG3) - Body ground Always 1 Mohms or higher W22-5 (SGD3) - Body ground Always 1 Mohms or higher TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor LH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  6. CHECK DTC Connect the connectors to the occupant detection ECU and rear occupant classification sensor LH. Connect the cable to the negative (-) battery terminal. Clear the DTCs stored in the occupant detection ECU. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . Clear the DTCs stored in the airbag sensor assembly. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598650-S20074771912014021400000) . Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . OK DTC B1782 is not output. HINT: Codes other than DTC B1782 may be output at this time, but they are not related to this check. Turn the engine switch off. NG --> See step 7 OK --> See step 14
  7. CHECK OCCUPANT DETECTION ECU Disconnect the cable from the negative (-) battery terminal. Replace the occupant detection ECU with a known good one. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . HINT: Perform the following inspection using known good parts from another vehicle if possible. Connect the cable to the negative (-) battery terminal. Clear the DTCs stored in the occupant detection ECU. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . Clear the DTCs stored in the airbag sensor assembly. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598650-S20074771912014021400000) . Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . OK DTC B1782 is not output. HINT: Codes other than DTC B1782 may be output at this time, but they are not related to this check. Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Restore the occupant detection ECU that was installed for testing to its original location. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . NG --> See step 10 OK: Go to next step
  8. REPLACE OCCUPANT DETECTION ECU Disconnect the cable from the negative (-) battery terminal. Replace the occupant detection ECU with a new one. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  9. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  10. REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Disconnect the cable from the negative (-) battery terminal. Replace the front seat adjuster assembly RH. Refer to «REMOVAL [06/2012 - ]»(ref-598624-S12707437232014021400000) . Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  11. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  12. REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Disconnect the cable from the negative (-) battery terminal. Replace the front seat adjuster assembly RH. Refer to «REMOVAL [06/2012 - ]»(ref-598624-S12707437232014021400000) . NOTE: Replace the front seat wire RH at the same time. HINT: When the front seat wire RH has a short to B+, the rear occupant classification sensor LH will be damaged. Therefore, replace the front seat wire RH and the front seat adjuster assembly RH, which includes the rear occupant classification sensor LH. Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  13. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  14. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ]»(ref-598449-S34618498472014021400000)

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

HINT

  1. If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to see under the seat cushion.
  2. In the above case, lift and hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation.

Scheme 254

Scheme 254: PROCEDURE
Scheme 254: PROCEDURE

Scheme 255

Scheme 255
Scheme 255
  1. CHECK CONNECTORS Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Check that the connectors are properly connected to the occupant detection ECU and rear occupant classification sensor RH. OK The connectors are properly connected. HINT: If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection. Disconnect the connectors from the occupant detection ECU and rear occupant classification sensor RH. Check that the terminals of the connectors are not damaged. OK The terminals are not deformed or damaged. NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  2. CHECK FRONT SEAT WIRE RH (SHORT TO B+) Connect the cable to the negative (-) battery terminal. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition W22-2 (SVC4) - Body ground Engine switch on (IG) Below 1 V W22-4 (SIG4) - Body ground Engine switch on (IG) Below 1 V W22-6 (SGD4) - Body ground Engine switch on (IG) Below 1 V Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor RH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> See step 12 OK: Go to next step
  3. CHECK FRONT SEAT WIRE RH (OPEN) Using a service wire, connect terminals 1 (SVC4) and 3 (SGD4), and connect terminals 2 (SIG4) and 3 (SGD4) of connector C. NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting the wire. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W22-2 (SVC4) - W22-6 (SGD4) Always Below 1 ohms W22-4 (SIG4) - W22-6 (SGD4) Always Below 1 ohms Disconnect the service wire from connector C. TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor RH *2 Occupant Detection ECU *3 Front Seat Wire RH *4 Service Wire *a Front view of wire harness connector (to Occupant Detection ECU) *b Front view of wire harness connector (to Rear Occupant Classification Sensor RH) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  4. CHECK FRONT SEAT WIRE RH (SHORT) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W22-2 (SVC4) - W22-6 (SGD4) Always 1 Mohms or higher W22-4 (SIG4) - W22-6 (SGD4) Always 1 Mohms or higher W22-2 (SVC4) - W22-4 (SIG4) Always 1 Mohms or higher TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor RH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  5. CHECK FRONT SEAT WIRE RH (SHORT TO GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition W22-2 (SVC4) - Body ground Always 1 Mohms or higher W22-4 (SIG4) - Body ground Always 1 Mohms or higher W22-6 (SGD4) - Body ground Always 1 Mohms or higher TEXT IN ILLUSTRATION *1 Rear Occupant Classification Sensor RH *2 Occupant Detection ECU *3 Front Seat Wire RH *a Front view of wire harness connector (to Occupant Detection ECU) NG --> REPLACE FRONT SEAT WIRE RH OK: Go to next step
  6. CHECK DTC Connect the connectors to the occupant detection ECU and rear occupant classification sensor RH. Connect the cable to the negative (-) battery terminal. Clear the DTCs stored in the occupant detection ECU. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . Clear the DTCs stored in the airbag sensor assembly. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598650-S20074771912014021400000) . Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . OK DTC B1783 is not output. HINT: Codes other than DTC B1783 may be output at this time, but they are not related to this check. Turn the engine switch off. NG --> See step 7 OK --> See step 14
  7. CHECK OCCUPANT DETECTION ECU Disconnect the cable from the negative (-) battery terminal. Replace the occupant detection ECU with a known good one. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . HINT: Perform the following inspection using known good parts from another vehicle if possible. Connect the cable to the negative (-) battery terminal. Clear the DTCs stored in the occupant detection ECU. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . Clear the DTCs stored in the airbag sensor assembly. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598650-S20074771912014021400000) . Turn the engine switch off. Turn the engine switch on (IG). Check for DTCs. Refer to «DTC CHECK / CLEAR [06/2012 - ]»(ref-598481-S06219441952014021400000) . OK DTC B1783 is not output. HINT: Codes other than DTC B1783 may be output at this time, but they are not related to this check. Turn the engine switch off. Disconnect the cable from the negative (-) battery terminal. Restore the occupant detection ECU that was installed for testing to its original location. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . NG --> See step 10 OK: Go to next step
  8. REPLACE OCCUPANT DETECTION ECU Disconnect the cable from the negative (-) battery terminal. Replace the occupant detection ECU with a new one. Refer to «REMOVAL [06/2012 - ]»(ref-598451-S27223724432014021400000) . Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  9. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  10. REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Disconnect the cable from the negative (-) battery terminal. Replace the front seat adjuster assembly RH. Refer to «REMOVAL [06/2012 - ]»(ref-598624-S12707437232014021400000) . Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  11. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  12. REPLACE FRONT SEAT ADJUSTER ASSEMBLY RH Disconnect the cable from the negative (-) battery terminal. Replace the front seat adjuster assembly RH. Refer to «REMOVAL [06/2012 - ]»(ref-598624-S12707437232014021400000) . NOTE: Replace the front seat wire RH at the same time. HINT: When the front seat wire RH has a short to B+, the rear occupant classification sensor RH will be damaged. Therefore, replace the front seat wire RH and the front seat adjuster assembly RH, which includes the rear occupant classification sensor RH. Connect the cable to the negative (-) battery terminal. NEXT: Go to next step
  13. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK Using the Techstream, perform Zero Point Calibration and Sensitivity Check. Refer to «INITIALIZATION [06/2012 - ]»(ref-598481-S25623628362014021400000) . NEXT --> END
  14. USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [06/2012 - ]»(ref-598449-S34618498472014021400000)

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

HINT

  1. If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to see under the seat cushion.
  2. In the above case, lift and hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation.

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

HINT

  1. If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to see under the seat cushion.
  2. In the above case, lift and hold the seat so that it does not fall down. Hold the seat only as necessary because holding the seat for a long period of time may cause seat rail deformation.

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] . Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

Note. After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work. Refer to PRECAUTION [06/2012 - ] .

More articles — Occupant Classification System (Diagnostic Codes & Symptom Tests)