POST-COLLISION DIAGNOSIS

1. caution Refer to that the ignition switch is "LOCK" (OFF) when connecting or disconnecting M.U.T.-III. Connect the M.U.T.-III to the diagnosis connector (Refer to GROUP 00, Diagnosis Function ). 2.Read (and write down) all displayed diagnosis codes (Refer to ). note If battery power supply has been shut down by the collision, the M.U.T.-III cannot communicate with the SRS-ECU. Check and, repair if necessary, the instrument panel wiring harness before the next job. 3.Use the M.U.T.-III to read the data list (how long trouble(s) have continued and how often memory have been erased). Data list No. Date list item Check conditions Normal conditions 01 Failure continuation time 1 Always Maximum time to be stored: 9,999 minutes (approximately seven days) 02 Failure continuation time 2 Always 03 Elimination times Always Maximum time to be stored: 250 times 4.Erase the diagnosis codes and after waiting 45 seconds or more read (and write down) all displayed diagnosis codes.

2.Check the following parts and replace if there are any malfunctions. Clock spring (Refer to ). Steering wheel, steering column and shaft assembly (1) Check the wiring harness (built into the steering wheel) and connectors for damage, and terminals for deformation. (2) Install the air bag module to check fit or alignment with the steering wheel. (3) Check the steering wheel for noise, binds or difficult operation and excessive free play. (4) Check the steering column shaft shock absorbing mechanism (Refer to GROUP 37, On-Vehicle Service ).

3.Check the harness for binding, connectors for damage, poor connections, and terminals for deformation (Refer to ).

2.Check the harness for binding, connectors for damage, poor connections, and terminals for deformation (Refer to ).

Check the SRS components. If visible damage such as dents, cracks, or deformation is found on the SRS components, replace them with new ones. Concerning parts removed for inspection, replacement with new parts and cautions in working, refer to

1.Check the SRS-ECU case and brackets for dents, cracks or deformation. 2.Check the connector for damage, and the terminals for deformation. 3.Check the SRS-ECU and bracket for installation condition.

1.Check the pad cover for dents, cracks or deformation. 2.Check the connector for damage, terminals deformities, and the harness for binding. 3.Check the air bag inflator case for dents, cracks or deformities. 4.Check the air bag modules for proper installation.

1.Check the side-airbag module deployment section in the seat for dents and deformation. 2.Check the connectors for damage, the terminals for deformation, and the harness for binds.

1.Check the clock spring connectors and protective tube for damage, and the terminals for deformation. 2.Visually check the case for damage.

1.Check the centre pillar for deformation or rust. 2.Check the side impact sensors for dents, cracks, deformation and rust. 3.Check the connector for damage and the terminals for deformation. note The figures show side impact sensors (LH). The side impact sensors (RH) are symmetrical with the side impact sensors (LH).

1.Check that the curtain air bag deployment part of the headlining is normal. 2.Check the inflator surface for cracks, dents or deformations. 3.Check the air bag for breakage. 4.Check the connector for damage, the terminal for deformation and the harness for binding.

4.Check the steering column shaft shock absorbing mechanism (Refer to GROUP 37, On-vehicle Service ).

Check harnesses for binding, connectors for damage and terminals for deformation (Refer to ).