Restraint Systems

DIAGNOSIS:
- Side airbag harness (LH) is faulty.
- Side airbag module (LH) is faulty.
- Airbag control module is faulty.

CAUTION: Before performing diagnostics on airbag system, turn ignition switch "OFF"", disconnect battery ground cable and then wait at least 20 seconds.

5N1: SIDE AIRBAG MODULE INSPECTION
1. Disconnect connector (AB21) from ELR with pretensioner on LH side.
2. Disconnect connector (AB19) and (AB20), and then connect connector (AB19) and test harness F connector (1F).
3. Connect test harness F connector (3F) and air-bag resistor.
4. Connect battery ground cable and then turn ignition switch ON.

CHECK: Does the airbag warning light come on?

YES: Replace front seat with side airbag module (LH).

NO: Go to step 5N2.

5N2: SIDE AIRBAG HARNESS (LH) INSPECTION
1. Turn ignition switch OFF, disconnect battery ground cable and then wait at least 20 seconds.
2. Disconnect test harness F and airbag resistor.
3. Disconnect connector (AB17) from airbag control module and connect test harness I or I2 connector (1I).




4. Measure resistance between test harness I or I2 connector (3I) terminal and test harness F connector (3F) terminal.

CHECK: Is the resistance less than 10 ohms?

YES: Go to step 5N3.

NO: Replace side airbag harness (LH).

5N3: SIDE AIRBAG HARNESS (LH) INSPECTION




Measure resistance between test harness I or I2 connector (3I) terminal and test harness F connector (3F) terminal.

CHECK: Is the resistance less than 10 ohms?

YES: Go to step 5N4.

NO: Replace side airbag harness (LH).




5N4: SIDE AIRBAG HARNESS (LH) INSPECTION
Measure resistance of test harness I or I2 connector (3I) terminal.

CHECK: Is the resistance more than 1 M ohms?

YES: Go to step 5N5.

NO: Replace side airbag harness (LH).

5N5: SIDE AIRBAG HARNESS (LH) INSPECTION




Measure resistance of test harness F connector (3F) terminal.

CHECK: Is the resistance more than 1 M ohms?

YES: Go to step 5N6.

NO: Replace side airbag harness (LH).

5N6: SIDE AIRBAG HARNESS (LH) INSPECTION




Measure resistance between connector (3F) terminal and chassis ground.

CHECK: Is the resistance more than 1 M ohms?

YES: Go to step 5N7.

NO: Replace side airbag harness (LH).

5N7: SIDE AIRBAG HARNESS (LH) INSPECTION




Measure resistance between connector (3F) terminal and chassis ground.

CHECK: Is the resistance more than 1 M ohms?

YES: Go to step 5N8.

NO: Replace side airbag harness (LH).

5N8: SIDE AIRBAG HARNESS (LH) INSPECTION




Measure resistance between connector (3I) terminal and chassis ground.

CHECK: Is the resistance more than 1 M ohms?

YES: Go to step 5N9.

NO: Replace side airbag harness (LH).

5N9: SIDE AIRBAG HARNESS (LH) INSPECTION




Measure resistance between connector (3I) terminal and chassis ground.

CHECK: Is the resistance more than 1 M ohms?

YES: Replace airbag control module.

NO: Replace side airbag harness (LH).