es350rm2043008-1002u_s001a_73a2x_t009t_103_109

1、WS103WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SYSTEM(g) The point where the voltage drops from approximately 10 V to 0 V is the place where the defogger wire is broken.HINT:If the defogger wire is not broken, the voltmeter should indicate 0 V at the positive (+) end of the defogger wire but graduall

2、y increase to approximately 12 V as the meter probe moves to the other end.REPAIR1.REPAIR WINDOW DEFOGGER WIRE(a)Clean the broken wire tips with a grease, wax and silicone remover.Place the masking tape along both sides of the wire.(b)(c)Thoroughly mix the repair agent (Dupont paste No. 4817 or equi

3、valent).Using a fine tip brush, apply a small amount of the agent to the wire.After a few minutes, remove the masking tape.NOTICE:Do not repair the defogger wire again for at least 24 hours.(d)(e)WS B106759Masking TapeBroken Wire Repair PointB106758E03WS104WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SY

4、STEMDESCRIPTIONWhen the rear window defogger switch, which is built into the heater control assembly, is operated, the operation signals are transmitted to the A/C amplifier assembly through LIN. When the A/C amplifier assembly receives the signals, it turns on the RR DEF relay to operate the rear w

5、indow defogger.WIRING DIAGRAM WSEngine Room R/B, J/BA/C Amplifier AssemblyRR DEF Relay238from A/C No. 2 Fuse 11 E1from RR DEF Fuse1311L20Defogger WireNoise Filter1112N1L25E3A/C Controller Assembly37E114: LIN Communication LineE1B137053E02TX+15RDFGLIN1GND154Rear Window Defogger System does not Operat

6、eWS105WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SYSTEMPECTION PROCEDURE(a)Select the DTC check on the intelligent tester to check for communication errors.ResultBA(a)Select the ACTIVE TEST, use the intelligent tester to issue a control command, and then check the window defogger operation.Air Conditi

7、onerOKNGWS (a) Replace the air conditioner control assembly.NEXT(a) Turn the engine switch on (IG), press the defogger switch, and check that the window defogger operates.NGOKENDREPLACE A/C AMPLIFIER ASSEMBLY4CONFIRM REAR WINDOW DEFOGGER OPERATION3REPLACE AIR CONDITIONER CONTROL ASSEMBLYGo to step 5

8、ItemTest DetailsDefogger Relay (Rear)Turns rear window defogger OFF/ON2PERFORM ACTIVE TEST BY INTELLIGENT TESTERGO TO MULTIPLEX COMMUNICATION SYSTEMResultProceed toNo DTC is outputADTC are output (LIN communication)B1CHECK FOR DTCsWS106WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SYSTEM(a) Select the AC

9、TIVE TEST, use the intelligent tester to issue a control command, and then check the DEFOG relay operation.(b) Check that operation sound of the RR DEF relay is heard.OKNGSee page WS-108.NGOK(a)(b)Disconnect the RR DEF relay.Measure the voltage according to the value(s) in the table below.Standard v

10、oltage: Engine room R/B, J/B WSNGOKREPAIR OR REPLACE A/C NO. 2 FUSE, HARNESS OR CONNECTORTester ConnectionConditionSpecified Condition1 - Body groundEngine switch on (IG)10 to 14 VB137052E017CHECK WIRE HARNESS (RR DEF RELAY - BATTERY POSITIVE)REPLACE RR DEF RELAY6PECT RR DEF RELAYGo to step 9ResultP

11、roceed toRelay operating sound is heardOKRelay operating sound is not heardNG5PERFORM ACTIVE TEST BY INTELLIGENT TESTERWS107WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SYSTEM(a) Disconnect the RR DEF relay and A/C amplifier assembly connector.(b) Measure the resistance according to the value(s) in the

12、table below.Standard resistanceNGOKWS See page WS-108.NGOK(a) Disconnect the RR DEF relay.(b) Measure the voltage and resistance according to the value(s) in the table below.Standard resistance: Engine room R/B, J/BStandard voltage: Engine room R/B, J/BTester ConnectionConditionSpecified Condition5

13、- Body groundAlways10 to 14 VTester ConnectionConditionSpecified Condition4 - Body groundAlwaysBelow 1 WB137052E0110CHECK WIRE HARNESS (RR DEF RELAY - BATTERY POSITIVE AND BODY GROUND)REPLACE RR DEF RELAY9PECT RR DEF RELAYREPLACE A/C AMPLIFIER ASSEMBLYREPAIR OR REPLACE HARNESS OR CONNECTORTester Con

14、nectionConditionSpecified Condition2 - E1-38AlwaysBelow 1 W2 - Body groundAlways10 kW or higherEngine Room R/B, J/B:A/C Amplifier Assembly:E1RDFGB140724E048CHECK WIRE HARNESS (RR DEF RELAY - A/C AMPLIFIER ASSEMBLY)WS108WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SYSTEMNGOK(a) Disconnect the noise filte

15、r connector.(b) Measure the resistance according to the value(s) in the table below.Standard resistanceNGOK(a) Disconnect the RR DEF relay and defogger wire connectors.(b) Measure the resistance according to the value(s) in the table below.Standard resistance WSNGOKREPAIR OR REPLACE HARNESS OR CONNE

16、CTORTester ConnectionConditionSpecified Condition3 - L20-2AlwaysBelow 1 W3 - Body groundAlways10 kW or higherEngine Room R/B, J/B:Noise Filter:L20B140738E0212CHECK WIRE HARNESS (RR DEF RELAY - NOISE FILTER)REPLACE NOISE FILTERTester ConnectionConditionSpecified ConditionL20-1 - L20-2AlwaysBelow 1 WL

17、20-1 - Body groundAlways10 kW or higherL20B140726E0211PECT NOISE FILTERREPAIR OR REPLACE RR DEF FUSE, HARNESS OR CONNECTORWS109WINDSHIELD / WINDOWGLASS WINDOW DEFOGGER SYSTEM(a) Measure the resistance according to the value(s) in the table below.Standard resistanceNGOK(a) Measure the resistance according to the value(s) in the table below.Standard resistanceWS NGOKREPAIR OR REPLACE REAR WINDOW DEFOGGER WIREREPAIR OR REPLACE HARNESS OR CONNECTORTester ConnectionConditionSpecified ConditionN1-1 - Body groundAlwaysBelow 1 WN1B127529E0314CHECK WIRE HARNESS (DEFOGGER WIRE CONN