CanOBD2&1 Scan Tool - Sears

GM OBD1 Systems
CODE RETRIEVAL PROCEDURE
7. Disconnect the CanOBD2&1 Scan Tool from the vehicle and turn
the ignition key OFF.
8. To prolong battery life, the CanOBD2&1 Scan Tool automatically
shuts "Off" after approximately three minutes with no button activity.
The DTCs retrieved will remain in the CanOBD2&1 Scan Tool's
memory, and may be viewed at any time. If the CanOBD2&1 Scan
Tool’s batteries are removed, or if the CanOBD2&1 Scan Tool is relinked
to a vehicle to retrieve codes, any prior codes in its memory
are automatically cleared.
� See VIEWING DTCs IN THE CANOBD2&1 SCAN TOOL’S
MEMORY on page 13 to view DTCs stored in the CanOBD2&1
Scan Tool’s memory.
9. Follow the testing and repair procedures outlined in the vehicle's
service repair manual to correct "hard" DTCs. Codes should be
addressed and eliminated in the order they were received, erasing
(see ERASING DTCs (OBD I SYSTEMS) on page 112) and
retesting after each repair is made to be sure the fault was
eliminated. Code 12 will appear alone when no other fault codes are
present.
� It may be necessary to test drive the vehicle to reset "hard" fault
codes 13, 15, 24, 44, 45, and 55 after they have been erased.
Whenever codes 51, 52, 54, or 55 are displayed with other
codes, troubleshoot and eliminate the "50 Series" codes first,
then proceed with the lower numbered codes.
The green, yellow and red LEDs are used (with the LCD
display) as visual aids to make it easier to determine engine
system conditions. See SERVICING DTCs - OBD I on page
110 for information on interpreting LEDs and servicing DTCs.
102 CanOBD2&1