Clear Memory Of Diagnostic Trouble Code - Mitsubishi 1989-1993 GALANT Service Manual

FUEL SYSTEM <SOHC-8 VALVE> - Troubleshooting
On-board
diagnostic
output
terminal
Ground
TSB Revision
Using Voltmeter
(1) Connect an analog-type voltmeter between the ground/
terminal and the on-board diagnostic output terminal of the
data link connector.
(2) Set the ignition switch to the "ON" position.
(3) Make a note of the pattern of the on-board diagnostic out-
put indicated by the voltmenter's indicator.
(4) Refer to the diagnostic chart, and repair the indicated loca-
tion of malfunction.
(5) Erase the diagnostic trouble code.
If the Scan Tool is Used <From 1990 models>
Connect the scan tool to the data link connector, and then
erase by following the steps below.)
(1) To erase diagnostic trouble code for the engine coolant
temperature sensor or idle speed control motor position
sensor, first turn the ignition switch OFF once and then ON
(2) EE?$t "4. SPECIAL TEST" of the scan tool's function-select
menu.
(3) Then select item No.5, "ERASE DIAG.".
(4) If "ERASE DIAG. CODE?" is displayed, press the "YES" key.
(5) Input ID code "19".
press the "CLEAR" key.
(7)
Read out on-board diagnostic output and check to be
the
sure that the correct code is being output.
If the Scan Tool is not Used
(1) Turn the ignition switch to OFF.
(2) Disconnect the ground cable from the battery terminal for
ten seconds or longer, and then reconnect it.
(3) Read out the on-board diagnostic output and check to be
sure that the correct code is being output.
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