Clearing Trouble Codes

Tool Required:
- TK-OA TECH 1 Modular Diagnostic System

SRS DTC's are stored in EEPROM and can not be cleared by disconnecting the negative (-) battery cable. To clear SRS DTCs, connect a TECH 1 to the DLC (with 3O00015 adapter and "Mass STORAGE" cartridge), plug the power cord into the cigar lighter and turn the ignition switch to "ACC" or "ON." The TECH 1 will clear the DTCs by alternately grounding terminal "Tc" and terminal "AB" of the DLC. If after repeated attempts, the DTCs will not clear, Proceed to Cannot Communicate With SRS. See Diagnostic Charts/ System Charts/Chart F Tech 1 Cannot Communicate With SRS. Chart F Tech 1 Cannot Communicate With SRS
If a TECH 1 is not available, SRS DTCs can be cleared by the following

Procedure:
1. Connect two test leads to terminals "Tc" and "AB" of the DLC.

Important:
- Make sure that the test leads have sufficient length to reach into the passenger compartment.
- If the leads are too short, you will not be able to watch the AIR BAG indicator and, consequently, not know if the DTCs were cleared.

2. Route the test leads into the passenger compartment.
3. Turn the ignition switch to "ACC" or "ON" and wait at least six seconds.
4. Ground the test lead connected to terminal "Tc" for one second.
5. Remove the "Tc" test lead from ground and IMMEDIATELY ground the test lead connected to terminal "AB" for one second.
6. Repeat this procedure two more times.
7. Continuously ground the "Tc" test lead until the "AIR BAG" indicator flashes rapidly (500 millisecond cycles). If the air bag indicator remains illuminated, then repeat Steps 4, 5 and 6.

Important
- If, after repeated attempts, the DTC's will not clear, proceed to "DTCs Will Not clear". See Diagnostic Charts/System Charts/Chart F Tech 1 Cannot Communicate With SRS. Chart F Tech 1 Cannot Communicate With SRS

8. Turn the ignition switch to "LOCK"
9. Disconnect the test leads from the DLC.

USE OF SPECIAL TOOLS
Tools Required:
- TK-OA TECH 1 Modular Diagnostic System.
- J 37808 SRS Column load Tool.
- J 37808-55 SRS Diagnostic Adapter Set.
- J 38125-A Terminal Repair Kit.
- J 39200 Digital Multimeter.
- J 37808-65 Center Sensor Assembly Diagnostic Connector.


CAUTION:
- To avoid deployment when troubleshooting the SRS. do not use electrical test equipment such as a battery powered or AC powered voltmeter, ohmmeter, etc., or any type of electrical equipment other than specified.
- Do not use a non-powered probe type tester.
- instructions must be followed carefully otherwise personal injury may result.

You should be familiar with the tools listed in this section under Special tools You should be able to measure voltage, resistance and current You should be familiar with the proper use of the TECH 1, the J 37808 with the J 37808-55, the J 38125-A, the J 39200 and the J 3780845.