Galant V6-3.0L SOHC (2003)
Remove the windshield wiper and washer switch. Then check continuity between the switch terminals.
Q: Are the windshield wiper and washer switch in good condition?
YES: Go to Step 3.
NO: Replace the windshield wiper and washer switch. If the equipment, which are described in "CIRCUIT OPERATION", work normally, the input
signal from the column switch (windshield wiper and washer switch) should be normal.
STEP 3. Replace the ECU.
1. Replace the column switch (turn-signal light and lighting switch).
2. If the equipment, which are described in "CIRCUIT OPERATION", work normally, the input signal from the column switch (windshield wiper
and washer switch) should be normal.
Q: Does the column switch (windshield wiper and washer switch) send a normal signal to the ECU?
YES: No action is necessary and testing is complete.
NO: Replace the ETACS-ECU. If the equipment, which are described in "CIRCUIT OPERATION", work normally, the input signal from the
column switch (windshield wiper and washer switch) should be normal.
Inspection Procedure M-7
Column Switch: ETACS-ECU does not receive any signal from the windshield intermittent wiper interval adjusting knob.
