Mitsubishi Eclipse 1990 Service Manual page 1858

TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
Gather information from customer.
Ground terminal
BODY
Diagnostic trouble
codecheckharness
Scan tool (MUT-II)
Check trouble symptom.
to the INSPECTION CHART
FOR TROUBLE SYMPTOMS.
DIAGNOSTIC FUNCTION
INPUT SIGNAL INSPECTION POINTS
When Using the Scan Tool
1. Connect the scan tool to the data link connector.
Caution
Always turn the ignition switch OFF before discon-
necting or connecting the scan tool.
2. If buzzer of the scan tool sounds once when a switch
is operated (ON/OFF), the ECU input signal for that switch
circuit system is normal.
1. Use the special tool to connect a voltmeter between the
grounded terminal and the ETACS terminal of data link
connector.
2. If the voltmeter indicator deflects once when a switch
is operated (ON/OFF), the ECU input signal for that switch
circuit system is normal.
TSB Revision
Door
Does not
reoccur
Reoccurs
Using a Voltmeter
(ETACS input check)
Intermittent malfunction