Equus 3120 - OBD 2&1 Tool Kit - Manual (Page 79)

OBD2 & 1 77
E
Toyota/Lexus OBD1 Systems
CODE RETRIEVAL PROCEDURE
6. If the Tool was able to link to the vehicle
successfully a "Code retrieval was suc-
cessful..." message shows temporarily
on the Tool’s LCD display followed by
any retrieved DTCs.
■ The Tool will display a code only if
codes are present in the vehicle's
computer memory. If no codes are
present, a "No DTC' are presently
stored in the vehicle's computer"
message is displayed.
7. If more than one code was retrieved
press the DTC SCROLL , as nec-
essary, to display additional codes one
at a time.
In the case of long code definitions, a small arrow is shown
in the upper.lower right-hand corner of the code display area
to indicate the presence of additional information. Use the
and buttons, as necessary, to view the additional
information.
8. Disconnect the Tool from the vehicle and turn the ignition key OFF.
9. To prolong battery life, the Tool automatically shuts "Off" after
approximately three minutes with no button activity. The DTCs
retrieved will remain in the Tool's memory, and may be viewed at
any time. If the Tool’s batteries are removed, or if the Tool is re-
linked to a vehicle to retrieve codes, any prior codes in its memory
are automatically cleared.
■ See Viewing DTCs in the Tool’s Memory on page 13 to view
DTCs stored in the Tool’s memory.
10. 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 DTC's on page 80) and retesting after each repair is
made to be sure the fault was eliminated.
The green, yellow and red LEDs are used (with the LCD dis-
play) as visual aids to make it easier to determine engine sys-
tem conditions. See Servicing Diagnostic Trouble Codes
on page 78 for information on interpreting LEDs and servic-
ing DTCs.