Reading and Clearing Diagnostic Trouble Codes

Fig. 266 Test Tool Connection Locations:

Fig. 267 Diagnostic Tester Sequence (Part 1 Of 2):

Fig. 267 Diagnostic Tester Sequence (Part 2 Of 2):

1. With ignition Off, disconnect and tape battery ground cable terminal.
2. Wait 15 seconds for energy reserve module to discharge.
3. Connect 8-pin connectors of SIR test tool No. J-36884-A or equivalent, to the mating 8-pin connector at the IRS control center, Fig. 266.
4. Connect 2-pin connectors of test tool to mating 2-pin connector.
5. Connect 3-pin connectors of test tool to mating 3-pin connector, located to right side of steering column, behind knee bolster.
6. Connect battery ground cable.
7. Connect battery leads of SIR test tool No. J-36884-A or equivalent, to battery terminals.
8. Follow the Diagnostic Tester Sequence chart, Fig. 267, to locate source of malfunction.
9. Refer to appropriate test chart under DIAGNOSTIC CHARTS, as directed by Diagnostic Tester Sequence chart.

Trouble Codes
In the event of an SIR system malfunction, the DERM will store a related trouble code in memory and notify the driver of a malfunction by illumination of the SIR warning lamp.
Trouble codes may be read through flashing of the warning lamp, on board diagnostics, or the use of a SCAN/TECH tool.

Current Codes
Current codes are faults that are presently being detected or have not been successfully cleared because the malfunction still exists. If the battery has been disconnected, all current codes will be erased. Do not disconnect battery if an SIR system malfunction exists and trouble codes have not been retrieved.

History Codes
History codes are all faults detected since the DERM memory was last cleared. If a history code is present, the related malfunction may not necessarily exist. History codes may only be erased using a SCAN/TECH tool.