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The ETACS-ECU calculates the intermittent wiper
interval according to the vehicle speed signal which is sent by the
engine-ECU M/T or engine-A/T-ECU A/T.
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If the intermittent wiper interval does not
depend on the vehicle speed, the input circuit of the vehicle speed signal
and the ETACS-ECU may be defective.
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- Malfunction of the ETACS-ECU
- Damaged harness wires and connectors
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Check that the windshield intermittent wiper
interval can be adjusted by operating the windshield intermittent wiper
volume control.
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Q.
Is the check result normal?
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Refer
to Inspection Procedure 5 "The intermittent wiper interval cannot be
adjusted by operating the windshield intermittent wiper volume control ."
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Use the SWS monitor customize function to
confirm that "Wiper speed-sensitive operation" is set to
"With function".
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Q.
Is the check result normal?
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Use
the SWS monitor customize function to set the
"Wiper speed-sensitive operation" to "With function" (Refer to ).
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Check that the power supply and earth lines to
the ETACS-ECU and the SWS communication lines are normal.
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OK: "OK" is displayed on the
"ETACS ECU" menu.
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Q.
Is the check result normal?
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Refer
to GROUP 54C - ETACS, Inspection Procedure 2 "Communication with the
ETACS-ECU is not possible ."
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Check that the vehicle speed signal to the
ETACS-ECU is normal.
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OK: "OK" is displayed on the
"ETACS ECU" menu.
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Q.
Is the check result normal?
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Refer
to GROUP 54A, ETACS - Inspection procedure B-2 "Door ajar warning
function does not work normally (combination meter (speedometer) operation
check) ."
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(1)Replace the ETACS-ECU.
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(2)Check that the vehicle speed-dependent intermittent wiper
system should work normally.
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Q.
Is the check result normal?
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Replace the combination
meter.
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