Galant LS V6-3.0L SOHC (1999)
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Using scan tool MB991502
1. Connect Scan Tool MB991502 to the data link connector.
2. Check that the tone alarm of the scan tool sounds when the driver's door is opened.
If the tone alarm of the scan tool does not sound, the input signal from the driver's side door switch is not normal. Go to Step 7.
If the tone alarm of the scan tool sounds when the driver's door is opened [Front door switch (LH) is turned to ON], the input signal from the
driver's door switch to the scan tool is normal. Replace the ETACS-ECU. Then check that the malfunction is eliminated.
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Using a voltmeter
1. Use special tool MB991529 to connect a voltmeter between ground terminal 4 or 5 and ETACS-ECU terminal 9 of the data link connector.
2. If a voltmeter indicator deflects once when the driver's door is opened, the ETACS-ECU input signal for that driver's door switch circuit
system is normal.
If the input signal of the driver's door switch is not normal, go to Step 7.
STEP 7. Check the driver's door switch continuity.
1. Remove the driver's door switch.
2. Check continuity at the driver's side door switch.
If there is continuity, go to Step 8.
If there is no continuity, repair the wire or replace the switch.
Then check that the malfunction is eliminated.
