DTC Troubleshooting: 46-1x

DTC 46-1x (46-10 to 46-19, 46-1A to 46-1F):
No Signal from the Right Side Impact Sensor (second)

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

SRS simulator lead M (  070AZ-SNA0400)
 


1.Erase the DTC memory.

2.Turn the ignition switch ON (II), and wait for 10 seconds.

3.Read the DTC.

Is DTC 46-11 indicated?


YES - Go to 5.


NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index.


4.Read the DTC.

Is DTC 46-12 also indicated?


YES - Faulty right side impact sensor (second); replace the right side impact sensor (second).n


NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC Troubleshooting Index.

5.Turn the ignition switch OFF.

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

7.Disconnect the floor wire harness 2P connector (A) from the right side impact sensor (second).

 

8.Disconnect the floor wire harness 4P connector (A) from the right side impact sensor (first).

 

9.Check resistance between the No. 1 and No. 2 terminals of right side impact sensor (second) 2P connector. There should be an open circuit or at least 1 MW.

 

Is the resistance as specified?


YES - Go to 10.


NO - Short in the floor wire harness; replace the floor wire harness.n


10.Check resistance between the No. 1 terminal of right side impact sensor (second) 2P connector and body ground, and between the No. 2 terminal and body ground. There should be an open circuit or at least 1 MW.

 

Is the resistance as specified?


YES - Go to 11.


NO - Short to ground in the floor wire harness; replace the floor wire harness.n

11.Reconnect the negative cable to the battery.

12.Turn the ignition switch ON (II).

13.Check for voltage between the No. 1 terminal of right side impact sensor (second) 2P connector and body ground, and between the No. 2 terminal and body ground. There should be 1 V or less.

 

Is the voltage as specified?


YES - Go to 14.


NO - Short to power in the floor wire harness; replace the floor wire harness.n


14.Turn the ignition switch OFF.

15.Connect the SRS inflator simulator (jumper connector) and simulator lead M to the right side impact sensor (first) 4P connector (A).

 

16.Check resistance between the No. 1 and No. 2 terminals of right side impact sensor 2P connector. There should be 0-1.0 W.

 

Is the resistance as specified?


YES - Faulty right side impact sensor (second) or poor connection at right side impact sensor (second) 2P connector. Check the connection; if the connection is OK, replace the right side impact sensor (second).n


NO - Open in the floor wire harness; replace the floor wire harness.n