SERVICE PRECAUTIONS

2.Be sure to use the tester and special tools specified in this manual (Special tool: refer to , tester).

4.Never attempt to repair the wiring harness connectors of the SRS. If a defective wiring harness is found, repair or replace it by referring to the table follows. <Vehicles for RUSSIA except rear curtain air bag> SRS-ECU terminal No. Destination of wiring harness Measures 1, 2 Floor wiring harness → side-airbag module (LH) Repair or replace the floor wiring harness. 3, 10 Floor wiring harness → side impact sensor (LH) 4, 5 Floor wiring harness → side-airbag module (RH) 6, 7 Floor wiring harness → side impact sensor (RH) 11, 12 Floor wiring harness → driver’s seat belt pre-tensioner 13, 14 Floor wiring harness → driver’s seat belt lap pre-tensioner 17, 18 Floor wiring harness → passenger’s (front) seat belt lap pre-tensioner 19, 20 Floor wiring harness → passenger’s (front) seat belt pre-tensioner 21 Instrument panel wiring harness → ETACS-ECU (fuse No. 21) Repair or replace the instrument panel wiring harness. 22, 23 Instrument panel wiring harness → front wiring harness → front impact sensor (LH) Repair or replace the wiring harnesses. 24,25 Instrument panel wiring harness → passenger’s air bag cut OFF switch Repair or replace the instrument panel wiring harness. 26 Instrument panel wiring harness → passenger’s air bag OFF indicator lamp 27 Instrument panel wiring harness → ETACS-ECU (fuse No. 15) 28 Instrument panel wiring harness → diagnosis connector 29 Instrument panel wiring harness → passenger’s air bag OFF indicator lamp 30 Instrument panel wiring harness → earth 33, 34 Instrument panel wiring harness → CAN bus line 35 Instrument panel wiring harness → ECall control unit 36, 37 Instrument panel wiring harness → front wiring harness → front impact sensor (RH) Repair or replace the wiring harnesses. 38, 39 Instrument panel wiring harness → clock spring → driver’s air bag module (squib) Replace the clock spring, or repair or replace the instrument panel wiring harness. 40, 41 Instrument panel wiring harness → passenger’s (front) air bag module (squib) Repair or replace the instrument panel wiring harness. 42, 43 Instrument panel wiring harness → driver’s knee air bag module 44, 45 Instrument panel wiring harness→ roof wiring harness → curtain air bag module (RH) Repair or replace the wiring harness. 46, 47 Instrument panel wiring harness→ roof wiring harness → curtain air bag module (LH)

5.Never attempt to repair the wiring harness connectors of the SRS. If a defective wiring harness is found, repair or replace it by referring to the table follows. <Vehicles with rear curtain air bag> SRS-ECU terminal No. Destination of wiring harness Measures 1, 2 Instrument panel wiring harness → driver’s knee air bag module Repair or replace the instrument panel wiring harness. 3, 4 Instrument panel wiring harness → roof wiring harness → rear curtain air bag module (LH) Repair or replace the wiring harness. 5, 6 Instrument panel wiring harness → clock spring → driver’s air bag module (squib) Replace the clock spring, or repair or replace the instrument panel wiring harness. 7, 8 Instrument panel wiring harness → passenger’s (front) air bag module (squib) Repair or replace the instrument panel wiring harness. 9, 10 Instrument panel wiring harness → roof wiring harness → rear curtain air bag module (RH) Repair or replace the wiring harness. 11, 12 Instrument panel wiring harness → roof wiring harness → curtain air bag module (LH) 13, 15 Instrument panel wiring harness → passenger’s air bag OFF indicator lamp Repair or replace the Instrument panel wiring harness. 14 Instrument panel wiring harness → ECall control unit 17, 27 Instrument panel wiring harness → front wiring harness → front impact sensor (LH) Repair or replace the wiring harnesses. 18, 28 Instrument panel wiring harness → front wiring harness → front impact sensor (RH) 19, 20 Instrument panel wiring harness → roof wiring harness → curtain air bag module (RH) 21 Instrument panel wiring harness → ETACS-ECU (fuse No. 21) Repair or replace the Instrument panel wiring harness. 22 Instrument panel wiring harness → ETACS-ECU (fuse No. 15) 24 Instrument panel wiring harness → earth 25,26 Instrument panel wiring harness → passenger’s air bag cut OFF switch 29, 30 Instrument panel wiring harness → CAN bus line 31, 32 Floor wiring harness → front passenger’s seat belt pre-tensioner Repair or replace the floor wiring harness. 34, 35 Floor wiring harness → front passenger’s seat belt lap pre-tensioner 39, 40 Floor wiring harness → side-airbag module (LH) 41, 42 Floor wiring harness → side impact sensor (LH) 51, 52 Floor wiring harness → driver’s seat belt lap pre-tensioner 54, 55 Floor wiring harness → driver’s seat belt pre-tensioner 56, 57 Floor wiring harness → side-airbag module (RH) 64, 65 Floor wiring harness → side impact sensor (RH)

6.Before maintenance, wait for 60 seconds or more after disconnecting the negative battery terminal. Wrap the disconnected terminal with tape for insulation. The condenser inside SRS-ECU keeps a voltage necessary to expand the air bag for a certain period even after the IG power is turned OFF. Therefore, if any operation is performed before the period elapses, it may cause serious damage. 7.If the influence of heat is suspected during painting work, remove the following parts: 93°C or higher: SRS-ECU, air bag module, clock spring, front impact sensor, and side impact sensor 90 °C or higher: Seat belt with pre-tensioner 8.After the maintenance of the SRS air bag and seat belt with pre-tensioner is completed, be sure to delete the diagnosis code and check whether the SRS warning lamp lights up.