RM38T0EC _59 Vehicle Exterior _114146 WIPER / WASHER _0510034 WIPER AND WASHER SYSTEM T

WIPER / WASHER WIPER AND WASHER SYSTEM PROBLEM SYMPTOMS TABLE

NOTICE:: ·

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.*1

*1: w/ Smart Entry and Start System

HINT:: ·

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

·

Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Front Wiper System
Symptom	Suspected Area	Link
Front wipers do not operate at all	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Front Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GW,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front wipers do not operate in LO	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Front Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GW,
	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front wipers do not operate in HI	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Front Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GW,
	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front wipers do not operate in INT	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Front Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GW,
	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front wipers do not operate in MIST	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Front wipers do not operate in MIST	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
When the front wiper switch is in INT, the front wiper intermittent operation interval cannot be adjusted by the intermittent time adjustment switch	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
When the front wipers are operating in INT, the front wiper intermittent operation interval does not change according to changes in the vehicle speed	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
Front wipers continuously operate in LO	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Front wipers continuously operate in LO	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front wipers continuously operate in HI	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Front wipers continuously operate in HI	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front wipers continuously operate in INT	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Front wipers do not move to the service position (wiper operation is normal)	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
When the front wiper switch is turned off, the front wipers do not move to the park position or stop in the wrong position	Proceed to "Front Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GW,
	Check the automatic stop (park) position	202201,999999,_59,_114146,_0505960,RM100000001ZPIY,
	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,

Rear Wiper System
Symptom	Suspected Area	Link
Rear wiper does not operate at all	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Rear Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GX,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
Rear wiper does not operate in LO	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Rear Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GX,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
Rear wiper does not operate in INT	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Rear Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GX,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
Rear wiper continuously operates in LO	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Rear wiper continuously operates in LO	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
Rear wiper continuously operates in INT	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Rear wiper continuously operates in INT	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
When the back door is opened, the rear wiper does not stop operating	Check customize settings	202201,999999,_59,_114146,_0510034,RM10000000207GQ,
	Main body ECU (Multiplex network body ECU)	202201,202307,_57,_111968,_0500002,RM100000001Z145,202307,999999,_57,_111968,_0500002,RM100000002BJZO,
When the rear washer is operated, the rear wiper does not operate	Check customize settings	202201,999999,_59,_114146,_0510034,RM10000000207GQ,
When driving in reverse, the rear wiper does not operate	Check customize settings	202201,999999,_59,_114146,_0510034,RM10000000207GQ,
When the rear wiper switch is turned off, the rear wiper does not move to the park position or stops in the wrong position	Proceed to "Rear Wiper Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GX,
	Check the automatic stop (park) position	202201,999999,_59,_114146,_0505961,RM100000001ZPJ2,

Washer System
Symptom	Suspected Area	Link
Windshield washer motor and pump assembly does not operate	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
	Proceed to "Washer Motor Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GZ,
	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Front washers do not operate	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Front washers do not operate	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Rear washer does not operate*1	Proceed to "Wiper and Washer Switch Circuit"	202201,999999,_59,_114146,_0510034,RM10000000207GY,
Rear washer does not operate*1	Windshield wiper relay assembly	202201,202307,_59,_114146,_0505968,RM100000001ZPJP,202307,999999,_59,_114146,_0505968,RM100000002CT66,
Washer fluid does not flow (Windshield washer motor and pump assembly is normal)	Washer fluid	-
	Washer hose and nozzle	-