DTC Troubleshooting: 2-1, 2-2

DTC 2-1:  Open in Front Passenger's Airbag Inflator
DTC 2-2:  Increased Resistance in Front Passenger's Airbag Inflator

Special Tools Required
SRS inflator simulator (  07SAZ-TB4011A)
 

SRS simulator lead C (  07TAZ-SZ5011A)
 


1.Erase the DTC memory.

2.Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on?


YES - Go to 3.


NO - Intermittent failure, system is OK at this time.Go to Troubleshooting Intermittent Failures.


3.Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes.

4.Disconnect the P1o connector from the P1i connector (1).

 

5.Connect the special tool (2 W connector) to the P1i connector.

6.Reconnect the battery negative cable.

7.Erase the DTC memory.

8.Read the DTC.

Is DTC 2-1 or DTC 2-2 indicated?


YES - Go to 9.


NO - Open or increased resistance in the front passenger's airbag inflator; replace the front passenger's airbag.n


9.Disconnect the battery negative cable, and wait for 3 minutes.

10.Disconnect the D1o connector (1) from the D1i connector (2).

 

11.Disconnect the TL1o and TR1o connectors (1) from the TL1i and TR1i connectors (2).

 

12.Disconnect the U1o connector (1) from the SRS unit (A).

 

13.Check resistance between the No. 5 and No. 14 terminals of U1o connector. There should be 2.0-3.0 W.

 

Is the resistance as specified?


YES - Faulty  SRS unit or poor contact at the U1o connector; check the connection between U1o connector and the SRS unit. If the connector is OK, replace the SRS unit.n


NO - Open or increased resistance in the dashboard wire harness B; replace dashboard wire harness B.n