Failure Mode F

Failure Mode F: Open In Airbag Inflator or Cable Reel

1. Disconnect the battery negative cable and then the positive cable.

Test Harness B Installation And Testing:

2. Connect Test Harness B between the SRS unit and SRS main harness 18-P connector. Check the resistance between terminals B4 and B6, and between terminals B12 and B16.
^ If the resistance is more than 5 Kohm, go to mode C troubleshooting.
^ If the resistance is less than 5 Kohm, measure the resistance between the B1 and the B7 terminals.
^ If resistance is more than 0.2 Kohm, go to step 3.
^ If resistance is less than 0.2 Kohm, the SRS unit is faulty. Substitute a known-good SRS unit and recheck the voltages according to the failure mode diagnostic chart. Failure Mode Diagnostic Chart

Test Harness C Installation And Testing:

3. Disconnect the cable reel harness 6-P connector from the SRS main harness, then connect Test Harness C only to the cable reel harness side of the 6-P connector.

Connector Pinout:

4. Measure the resistance between the No. 4 terminal and the No. 5 terminal.
^ If resistance is more than 0.2 Kohm, go to step 5.
^ If resistance is less than 0.2 Kohm, the SRS main harness is faulty. Replace the SRS main harness and recheck the voltages according to the failure mode diagnostic chart. Failure Mode Diagnostic Chart

Test Harness C Installation And Testing:

5. Disconnect the airbag 3-P connector from the cable reel harness, then connect Test Harness C to the airbag 3-P connector.

Connector Pinout:

6. Measure the resistance between the No. 7 terminal and the No. 8 terminal.
^ If resistance is more than 0.2 Kohm, the inflator is faulty. Replace the airbag assembly and recheck the voltages according to the failure mode diagnostic chart. Failure Mode Diagnostic Chart
^ If resistance is less than 0.2 Kohm, the cable reel is faulty. Replace the cable reel and recheck the voltages according to the failure mode diagnostic chart. Failure Mode Diagnostic Chart