03 Front Sub Sensor / Sensor Harness Is Faulty

DIAGNOSIS:
- Front sub sensor harness is faulty.
- Front sub sensor is faulty.

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

5B1: FRONT SUB SENSOR (RH) AND FRONT SUB SENSOR HARNESS (RH) INSPECTION
1. Disconnect connector (AB6) from airbag control module, and connect it to test harness E connector (1E).




2. Measure resistance between test harness E connector (3E) terminal.

CHECK: Is the resistance between 750 Ohms and 1 K Ohm

YES: Go to step 5B2.

NO: Go to step 5B2.

5B2: FRONT SUB SENSOR (RH) AND FRONT SUB SENSOR HARNESS (RH) INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B3.

NO: Go to step 5B3.

5B3: FRONT SUB SENSOR (RH) AND FRONT SUB SENSOR HARNESS (RH) INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B4.

NO: Go to step 5B4.

5B4: FRONT SUB SENSOR (LH) AND FRONT SUB SENSOR HARNESS (LH) INSPECTION




Measure resistance between test harness E connector (3E) terminal.

CHECK: Is the resistance between 750 Ohms and 1 K Ohm?

YES: Go to step 5B5.

NO: Go to step 5B5.

5B5: FRONT SUB SENSOR (LH) AND FRONT SUB SENSOR HARNESS (LH) INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B6.

NO: Go to step 5B6.

5B6: FRONT SUB SENSOR (LH) AND FRONT SUB SENSOR HARNESS (LH) INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Replace airbag control module.

NO: Go to step 5B7.

5B7: AIRBAG MAIN HARNESS INSPECTION
1. Disconnect connector (AB14) and (AB15), then connect test harness F connector (2F) and connector (AB14).




2. Measure resistance between test harness E connector (3E) terminal and test harness F connector (3F) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B8.

NO: Replace airbag main harness.

5B8: AIRBAG MAIN HARNESS INSPECTION




Measure resistance between test harness E connector (3E) terminal and test harness F connector (3F) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B9.

NO: Replace airbag main harness.

5B9: AIRBAG MAIN HARNESS INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B10.

NO: Replace airbag main harness.

5B10: AIRBAG MAIN HARNESS INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B11.

NO: Replace airbag main harness.

5B11: FRONT SUB SENSOR HARNESS (RH) INSPECTION
1. Connect test harness F connector (1F) and connector (AB15).
2. Disconnect connector (AB16) from front sub sensor (RH) and then test harness H connector (1H) and connector (AB16).




3. Measure resistance between test harness F connector (3F) terminal and test harness H connector (3H) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B12.

NO: Replace front sub sensor harness (RH).

5B12: FRONT SUB SENSOR HARNESS (RH) INSPECTION




Measure resistance between test harness F connector (3F) terminal and test harness H connector (3H) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B13.

NO: Replace front sub sensor harness (RH).

5B13: FRONT SUB SENSOR HARNESS (RH) INSPECTION




Measure resistance across test harness F connector (3F) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B14.

NO: Replace front sub sensor harness (RH).

5B14: FRONT SUB SENSOR HARNESS (RH) INSPECTION




Measure resistance across test harness F connector (3F) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B15.

NO: Replace front sub sensor harness (RH).

5B15: FRONT SUB SENSOR (RH) INSPECTION
1. Connect test harness H connector (2H) and front sub sensor (RH).




2. Measure resistance between test harness H connector (3H) terminal.

CHECK: Is the resistance between 750 Ohms and 1 K Ohm?

YES: Go to step 5B16.

NO: Replace front sub sensor (RH).

5B16: FRONT SUB SENSOR (RH) INSPECTION




Measure resistance between test harness H connector (3H) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohm?

YES: Go to step 5B17.

NO: Replace front sub sensor (RH).

5B17: FRONT SUB SENSOR (RH) INSPECTION




Measure resistance across test harness H connector (3H) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B18.

NO: Replace front sub sensor (RH).

5B18: AIRBAG MAIN HARNESS INSPECTION
1. Disconnect connector (AB11) and (AB12), then connect test harness F connector (2F) and connector (AB11).




2. Measure resistance between test harness E connector (3E) terminal and test harness F connector (3F) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B19.

NO: Replace airbag main harness.

5B19: AIRBAG MAIN HARNESS INSPECTION




Measure resistance between test harness E connector (3E) terminal and test harness F connector (3F) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B20.

NO: Replace airbag main harness.

5B20: AIRBAG MAIN HARNESS INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B21.

NO: Replace airbag main harness.

5B21: AIRBAG MAIN HARNESS INSPECTION




Measure resistance across test harness E connector (3E) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B22.

NO: Replace airbag main harness.

5B22: FRONT SUB SENSOR HARNESS (LH) INSPECTION
1. Connect test harness F connector (1F) and connector (AB12).
2. Disconnect connector (AB13) from front sub sensor (LH) and then test harness H connector (1H) and connector (AB13).




3. Measure resistance between test harness F connector (3F) terminal and test harness H connector (3H) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B23.

NO: Replace front sub sensor harness (LH).

5B23: FRONT SUB SENSOR HARNESS (LH) INSPECTION




Measure resistance between test harness F connector (3F) terminal and test harness H connector (3H) terminal.

CHECK: Is the resistance less than 10 Ohms?

YES: Go to step 5B24.

NO: Replace front sub sensor harness (LH).

5B24: FRONT SUB SENSOR HARNESS (LH) INSPECTION.




Measure resistance across test harness F connector (3F) terminal and chassis ground.

CHECK: Is the resistance more than 10 Ohms?

YES: Go to step 5B25.

NO: Replace front sub sensor harness (LH).

5B25: FRONT SUB SENSOR HARNESS (LH) INSPECTION




Measure resistance across test harness F connector (3F) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B26.

NO: Replace front sub sensor harness (LH).

5B26: FRONT SUB SENSOR (LH) INSPECTION
1. Connect test harness H connector (2H) and front sub sensor (LH).




2. Measure resistance between test harness H connector (3H) terminal.

CHECK: Is the resistance between 750 Ohms and 1 K Ohm?

YES: Go to step 5B27.

NO: Replace front sub sensor (LH).

5B27: FRONT SUB SENSOR (LH) INSPECTION




Measure resistance across test harness H connector (3H) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Go to step 5B28.

NO: Replace front sub sensor (LH).

5B28: FRONT SUB SENSOR (LH) INSPECTION




Measure resistance across test harness H connector (3H) terminal and chassis ground.

CHECK: Is the resistance more than 10 K Ohms?

YES: Perform clear memory.

NO: Replace front sub sensor (LH).