obd2cartool.com Tech-2-User-Guide
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SECTION VI<br />
TROUBLESHOOTING<br />
Power On Self Test (POST)<br />
Power On Self Tests run automatically each time the power [PWR] button on the <strong>Tech</strong> 2 keypad is pressed<br />
on. The screen displays pass or fail results for each area tested. POST automatically checks the following:<br />
• MC68332 processor<br />
• External RAM (Random Access Memory)<br />
• Flash memory<br />
• Display controller and display<br />
• Sound transducer<br />
• MC68332 RAM<br />
• Real-time clock<br />
• Keypad controller and keypad<br />
• Main UART (Universal Asynchronous Receiver/Transmitter)<br />
Results of POST may include fatal errors that do not allow you to continue, or non-fatal errors that allow<br />
you to continue without full <strong>Tech</strong> 2 operation. If normal <strong>Tech</strong> 2 functions are stopped or limited, contact<br />
Customer Support to determine if service is required.<br />
At <strong>com</strong>pletion of POST, the following audible signals indicate a pass or fail condition:<br />
• One beep - No problem. Your <strong>Tech</strong> 2 is operating normally.<br />
• No beep - Sound transducer has failed. Contact Customer Support.<br />
• Three short beeps - <strong>Tech</strong> 2 has failed POST. Contact Customer Support.<br />
In the United States and Canada to contact Customer Support, dial:<br />
• English: 1-800-828-6860 (option 1)<br />
• French: 1-800-503-3222<br />
• Spanish: 1-248-265-0840 (option 2)<br />
• Fax line: 1-248-265-9327<br />
Refer to page iii for international customer support.<br />
2005 <strong>Tech</strong> 2 <strong>User</strong>’s <strong>Guide</strong> VI - 2
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