DTC Troubleshooting: 1-4

DTC 1-4:  Short to Power in Driver'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 D1o connector from the D1i connector (A).

 

5.Connect the special tool (2 W connector) to the D1i connector (A).

6.Reconnect the battery negative cable.

7.Erase the DTC memory.

8.Read the DTC.

Is DTC 1-4 indicated?


YES - Go to 9.


NO - Short to power in the driver's airbag; replace the driver's airbag.n


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

10.Disconnect the U1o connector (A) from the SRS unit.

 

11.Reconnect the battery negative cable.

12.Turn the ignition switch ON (ll).

13.Disconnect the SRS inflator simulator (special tool) from the SRS simulator lead C.

14.Check for voltage between the A terminal of the SRS simulator lead C (special tool) and body ground, between the B terminal and body ground. There should be 0.5 V or less.

 

Is the voltage as specified?


YES - Faulty  SRS unit; replace the SRS unit.n


NO - Go to 15.

15.Turn the ignition switch OFF.

16.Disconnect the D2i connector (A) from the D2o connector (B).

 

17.Check for voltage between the A terminal of the SRS simulator lead C (special tool) and body ground, between the B terminal and body ground. There should be 0.5 V or less

 

Is the voltage as specified?


YES - Replace the dashboard wire harness.n


NO - Replace the cable reel.n