SYMPTOM PROCEDURES
TSB Revision
SWS SYMPTOM PROCEDURES
54Bb-279
INSPECTION PROCEDURE H-3: Rear Wiper and Washer: When the selector lever is moved to "R"
position during the rear wiper operation, the rear wiper does not operate at the continuous mode.
NOTE: This troubleshooting procedure requires use
of scan tool MB991502 and SWS monitor kit
MB991862. For details on how to use the SWS mon-
itor, refer to "How to use SWS monitor
P.54Ba-8
."
.
CIRCUIT OPERATION
The ETACS-ECU operates the rear wiper consecu-
tively approximately twice when the selector lever is
moved to "R" position while the rear wiper is turned
on.
.
TECHNICAL DESCRIPTION (COMMENT)
If the rear wiper does not work consecutively approx-
imately twice, the transmission range switch ("R"
position) or the ETACS-ECU may be defective.
.
TROUBLESHOOTING HINTS
• The transmission range switch may be defective
• The ETACS-ECU may be defective
• The wiring harness may be damaged or the con-
nectors may have loose, corroded or damaged
terminals, pushed back in the connector
"R" Position during Rear Wiper Operation Circuit