Auto-Cruise Control System On-Board Diagnostic Check - Mitsubishi 1989-1993 GALANT Service Manual

AUTO-CRUISE CONTROL SYSTEM - Troubleshooting
Wi th scan tool
With voltmeter
Auto-cruise
Data link
control
connector
,
I
Ground
Data link
connector
ON-BOARD DIAGNOSTIC CHECK
On-board diagnostic checking is performed when there has
been an automatic cancellation, without cancel switch opera-
tion.
diagnostic. Note that the data link connector is located
under the driver's side instrument panel.
Connect the scan tool's socket and connector to the
cigarette lighter socket and the data link connector, and
set the tester. Use the tester according to its operation
instructions; display the diagnostic trouble code num-
ber and then check.
Connect a voltmeter between the ground terminal and
the terminal for auto-cruise control of the data link con-
nector.
It is possible to discover which circuit is the cause of
the cancellation by verifying the indication shown by
the voltmeter with the display patterns shown on the
next page.
(2) When the diagnostic trouble code No. is displayed, check
by referring to the check chart applicable to that number.
NOTE
Canceling the diagnostic trouble codes
The diagnostic trouble codes remain in memory until the
battery is turned off but they can be canceled in the follo-
wing ways without disconnecting the battery terminals.
ON and then, within 1 second, turning the RESUME
switch ON. (Put into condition for input check recep-
tion).
161009
the same time and continuing the ON condition for 5
seconds or more.
canceled using a scan tool or voltmeter.
TSB Revision