Rear Pretensioner LH Front Passenger Side Squib Circuit Front Passenger Side Squib 2nd Step Circuit Junction Connector Front Seat Inner Belt Switch LH Front Airbag Sensor LH Rear Side Airbag Squib Circuit LH Integration Control and Panel Assembly Occupant Detection Sensor Center Airbag ECU Combination Meter Passenger Side Knee Airbag Rear Side Airbag Squib Circuit RH Junction Connector Rear Pretensioner RH Front Pretensioner RH Driver Side Knee Airbag DCM (Telematics Transceiver) Active Headrest Airbag Squib Circuit LH DLC3 Junction Connector Junction Connector Spiral Cable , Driver Side Squib Circuit , Driver Side Squib 2nd Step Circuit Spiral Cable , Driver Side Squib Circuit Junction Connector Junction Connector Front Pretensioner LH Rear Seat Cushion Airbag Squib Circuit RH Rear Side Airbag Sensor RH Engine Control Module Front Seat Inner Belt Switch RH Curtain Shield Airbag Squib Circuit RH Front Side Airbag Squib Circuit LH Seat Belt Tension Sensor Front Side Airbag Sensor RH Rear Side Airbag Sensor LH Front Airbag Sensor RH Display & Navigation Module Display Curtain Shield Airbag Squib Circuit LH Front Side Airbag Squib Circuit RH Occupant Detection ECU Front Side Airbag Sensor LH Driver Side Squib 2nd Step Circuit , Spiral Cable Active Headrest Airbag Squib Circuit RH d=" M 883.85, 467.22 L 883.85, 520.20 d=" M 883.85, 393.29 L 883.85, 452.21 d=" M 968.84, 467.22 L 968.84, 520.20 d=" M 968.84, 393.29 L 968.84, 452.21 d=" M 1495.75, 435.21 L 1495.75, 393.29 d=" M 1708.21, 486.20 L 1708.21, 537.20 d=" M 1793.20, 282.24 L 1793.20, 315.67 d=" M 1793.20, 222.75 L 1793.20, 267.22 d=" M 1801.70, 486.20 L 1801.70, 537.20 d=" M 1835.69, 137.76 L 1835.69, 180.26 d=" M 2209.63, 443.71 L 2209.63, 393.29 2C 10A IGN BR W-B W-B 54 B RR- B RR+ PA 23 Y W f19 2 PAON A Y B 4 BBR- B BBR- B BBR+ 3 43 BBR+ E2 A E1 A W-B W-B P-AB A PA 49 PA PA C LSP+ LBE+ C Buckle Switch SRL- SRL+ Y Y-B 1 C RL- C RL+ f35 2 SRR- SRR+ B Y B Y-B 1 3 4 6 5 2 1 7 8 21 27 29 28 30 2 1 3 4 7 8 2 1 20 19 10 9 17 15 16 10 9 25 26 23 17 Seat Belt Tension Sensor 18 Rear Side Airbag Squib Circuit LH Front Side Airbag Sensor RH Rear Side Airbag Squib Circuit RH Front Side Airbag Sensor LH Curtain Shield Airbag Squib Circuit RH Occupant Detection Sensor Rear Side Airbag Sensor RH Rear Seat Cushion Airbag Squib Circuit RH Rear Side Airbag Sensor LH Curtain Shield Airbag Squib Circuit LH 23 24 BBL+ 3 (*3) R R PA 24 PA 29 L73(A),R5(B),S8(C) BBL+ C BBL- C BBL- 4 B Y (IG) 10 L86 PK- PK+ 1 PK+ A PK- Y-B Y A 2 L7 DK- DK+ 1 DK+ A DK- Y-B Y A 2 R3 R- R+ 1 PR+ B PR- Y-B Y B 2 S3 L- L+ 1 PL+ C PL- Y-B Y C 2 R22 RR- RR+ 1 PRR+ B PRR- Y-B Y B 2 S27 RL- RL+ 1 PLR+ C PLR- Y-B Y C 2 SFR- SFR+ Y 9 Y-B 1 B SFR- B SFR+ R4 2 SFL- SFL+ Y Y-B 1 C SFL- C SFL+ S1 2 2 +SR -SR B W B W 2 1 A -SR A +SR A53 1 2 +SL -SL B W B W 2 1 A -SL A +SL A8 1 Y-G Y-R Y Y-B Y-G Y-R Y Y-B 4 3 2 1 A P2- A P2+ A P- A P+ 1 B IG2 A 18 AHL- AHL+ Y-R Y-G Y-R Y-G 1 2 C AHL+ C AHL- e67 1 12 11 e62 2 AHR- B AHR+ Y-G Y-R B 1 13 14 AHR- AHR+ 2 1 Y-G Y-R 40 DA 41 DA 18 W-B BR W-B BR W-B 17 58 PA 43 PA 8 6 L100 Junction Connector Center Airbag ECU L73(A),R5(B),S8(C) (*3) Y Y-B 2 1 Y Y-B 2 1 RCR- RCR+ Y Y-B 1 B RCR- B RCR+ f18 2 11 12 Front Airbag Sensor LH Y Y-B 2 1 (*5) (*5) (*5) (*5) Front Airbag Sensor RH S5 BCL+ 2 1 BCL+ 1 S12 BCL- 2 R W Front Side Airbag Squib Circuit LH BCL- Front Side Airbag Squib Circuit RH R7 BCR+ 2 1 BCR+ 1 R11 BCR- 2 R W Rear Pretensioner LH BCR- 16 22 W B B FSR- FSR+ B 2 3 (IG) 10 PJ 5A P RR-IG2 4 3 1 e16 Rear Pretensioner RH 11 GR 8 FSR+ 16 IG BR 9 W B GBT L FSR- L 12 BT 2 17 G VBT GPS 1 VPS 3 V R GPS 15 VPS 7 PS 2 P PS 6 Front Pretensioner LH Front Pretensioner RH e11 R17 ICR- ICR+ 1 ICR+ B ICR- Y Y-B B 2 S24 ICL- ICL+ 1 ICL+ C ICL- Y Y-B C 2 6 5 3 4 Passenger Side Knee Airbag Driver Side Knee Airbag * 2 :w/ LEXUS ENFORM or Safety Connect PK 7 PA 7 R GBT VBT BT RBE+ RBE- 1 W 13 BSW 2 Y 14 BGND Center Airbag ECU e13 20 21 Front Passenger Side Squib Circuit K2 Front Passenger Side Squib 2nd Step Circuit K1 2 1 2 LSP+ LBE+ 2 1 Seat Position Airbag Sensor 5 Front Seat Inner Belt Switch LH S17 3 4 LBE- W-B W-B W-B W-B LSP- Junction Connector S57 BR 5 W-B GND 8 W-B W-B A 22 A 13 CANL CANH A GSW 18 B A GSW3 24 W PA 47 PA 56 PA 8 PJ 11 16 G L GSW GSW DA 53 Main Body ECU L111(A) A 24 (*2) (*2) W-B W-B Occupant Detection ECU e10 10 DIA R 1 30 3A 7 3I 8 R R SIL 7 R DLC3 L31 L117(C) Display & Navigation Module Display L35 Integration Control and Panel Assembly AIR ARON AIR ARON 20 9 B R (*4) (*4) C 4 C 3 L73(A),R5(B),S8(C) Center Airbag ECU 22 20 46 45 16 15 8 7 P- P+ P2- P2+ * 3 :w/ Multi Display * 4 :w/o Multi Display Center Airbag ECU L73(A),R5(B),S8(C) R G R G 19 18 Junction Connector L98 Junction Connector A67 Junction Connector L97 A13(A) G R R G G R G R G R G R 5 12 1 4 G R 11 9 A 13 A 14 CANL CANH Passenger Airbag ON/OFF Indicator Passenger Airbag ON/OFF Indicator Engine Control Module z11(B) Y-G D2- A D2- Y-R D2+ A D2+ Y D- A D- Y-B D+ A D+ 7 8 6 5 Driver Side Squib Circuit A 1 A 2 A 4 z12(C) Driver Side Squib 2nd Step Circuit A 3 B 2 B 1 C 1 C 2 Spiral Cable L22(A),z11(B),z12(C) * 5 :w/ Ottoman 10 L (*2) Buckle Switch 2 LED DRIVER SRS CPU CAN CONTROLLER CAN I/F 5V IC Combination Meter L10 B IG2 CANL CANH Buzzer I/F Signal Earth Body Earth IG2 MPX-B CPU TFT CPU TFT Panel TFT Module Back Light Master E2 ES 6 1 10A P-J/B 2C 30 (IG) 10A D MPX-B 2 (BAT) 42 DA Junction Connector L136 2 P L L L 14 13 DCM (Telematics Transceiver) Front Seat Inner Belt Switch RH Active Headrest Airbag Squib Circuit RH Active Headrest Airbag Squib Circuit LH * If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair Manual. * After work on the SRS is completed, check the SRS warning light. * Information labels are attached to the periphery of the SRS components. Follow the instructions of the notice. * Use a volt/ohmmeter with high impedance (10 kΩ/V minimum) for troubleshooting electrical circuits of the system. * If the following parts have been dropped, or have cracks, dents and other defects in their case, bracket, and connector replace with new one. * For the purpose of reuse, never disassemble and repair the following parts. * Never use SRS parts from another vehicle. When replacing parts, replace with new parts. * Even in cases of a minor collision where the SRS does not deploy, the following parts should be inspected; * Do not expose the following parts directly to hot air or flame; * Before repair, remove the airbag sensor if shocks are likely to be applied to the sensor during repair. * Steering wheel pad * Side airbag assembly * Front passenger airbag assembly * Curtain shield airbag assembly * Seat belt pretensioner * Center airbag sensor assembly * Front airbag sensor assembly * Work must be started more than 90 seconds after the power switch is pushed to the "OFF" position and the negative (-) terminal cable is disconnected from the battery. (The SRS is equipped with a back-up power source so that if work is started within 90 seconds from disconnecting the negative (-) terminal cable of the battery, the SRS may deploy.) * Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery. * Rear airbag sensor assembly NOTICE :When inspecting or repairing the SRS, perform service in accordance with the following precautionary instructions and the procedure, and precautions in the Repair Manual applicable for the model year. * Side airbag sensor assembly * When the negative (-) terminal cable is disconnected from the battery, the memory of the clock and audio system will be cleared. So before starting work, make a record of the contents in the audio memory system. When work is finished, reset the audio systems as they were before and adjust the clock. Some vehicles have power tilt steering, power telescopic steering, power seat and power outside rear view mirror which are all equipped with memory function. However, it is not possible to make a record of these memory contents. So when the work is finished, it will be necessary to explain it to your customer, and ask the customer to adjust the features and reset the memory. To avoid erasing the memory in each system, never use a back-up power supply from outside the vehicle. * Knee airbag assembly * Active headrest airbag assembly * Seat cushion airbag LA4 LA4 LA1 Re4 Re4 Se3 Se3 LR1 LA2 LA2 LK1 LK1 LK1 LK1 Sf2 Sf2 Rf2 Rf2 Rf3 Rf3 Re3 Re3 Re3 Re1 Re3 LR1 LA1 LA1 L4 R3 L4 L1 L3 S2 L1