How to Troubleshoot the SRS - DTC

DTC (Diagnostic Trouble Codes)


The self-diagnostic function of the SRS system allows it to locate the causes of system problems and then store this information in memory. For easier troubleshooting, this data can be retrieved via a data link circuit.


Precautions



Reading the DTC


1.Make sure the ignition switch is OFF.

2.Connect the HDS to the DLC (A).

 

3.Turn the ignition switch ON (II).

4.Use the HDS to check for DTCs.

5.Read and record the DTC.

6.Turn the ignition switch OFF, and wait for 10 seconds.

7.Disconnect the HDS from the DLC.

8.Do the troubleshooting procedure for the DTC.

Erasing the DTC Memory with HDS


1.Make sure the ignition switch is OFF.

2.Connect the HDS to the DLC (A).

 

3.Turn the ignition switch ON (II).

4.In the TEST MODE MENU of the HDS, select DTC CLEAR. This erases the DTC(s).

5.Turn the ignition switch OFF, and wait for 10 seconds.

6.Disconnect the HDS from the DLC.

Erasing the DTC Memory with Manual Mode


Special Tools Required
SCS Service Connector (  07PAZ-0010100)
 



1.Make sure the ignition switch is OFF.

2.Connect the SCS service connector (A) to the yellow MES 2P connector (B). Do not use a jumper wire.

 

3.Turn the ignition switch ON (II).

4.The SRS indicator will come on for about 6 seconds, and then go off. Remove the SCS service connector from the MES connector (2P) within 4 seconds after the indicator goes off.

5.The SRS indicator will come on again. Reconnect the SCS service connector to the MES connector (2P) within 4 seconds after the indicator comes on.

6.When the SRS indicator goes off, remove the SCS service connector from the MES connector (2P) within 4 seconds.

7.The SRS indicator will blink two times indicating that the memory has been erased.

8.Turn the ignition switch OFF, and wait for 10 seconds.

9.Turn the ignition switch ON (II) again. If the SRS indicator comes on for 6 seconds, and then goes off, the system is OK.