Lexus RX300 (MCU15). Service manual - part 356

DI–656

–

DIAGNOSTICS

REAR LEFT DOOR CONTROL SYSTEM

LEXUS RX300   (RM785E)

INSPECTION PROCEDURE

1

Check door courtesy switch (See page BE–48).

NG

Replace the courtesy switch.

OK

2

Check wireharness and connector between courtesy light and rear left door
ECU, courtesy switch and rear left door ECU.

NG

Repair or replace wireharness or connector.

OK

Proceed to next circuit inspection shown on
problem symptoms table 
(See page DI–570).

I03223

P5
Power Window Switch

DOWN

MDN

10

21

22

24

23

L–O

BR–W

Y

Y–G

Y–R

UP

AUTO

PCTO

PWE

AUTO

MUP

Rear Left Door ECU

3

2

4

6

5

R14

R14

R14

R14

R14

–

DIAGNOSTICS

REAR LEFT DOOR CONTROL SYSTEM

DI–657

LEXUS RX300   (RM785E)

Power window switch circuit

CIRCUIT DESCRIPTION

Power window switch circuit can be checked using DTC check. (Refer to DI–708)

WIRING DIAGRAM

DI2FG–06

DI–658

–

DIAGNOSTICS

REAR LEFT DOOR CONTROL SYSTEM

LEXUS RX300   (RM785E)

INSPECTION PROCEDURE

1

Check the power window switch circuit using DTC check (See page DI–708).

OK

Proceed to next circuit inspection shown on
problem symptoms table (See page DI–647).

OK

2

Check the power window switch (See page BE–84).

NG

Replace the power window switch.

OK

3

Check wireharness and connector between power window switch and rear left
door ECU.

NG

Repair or replace wireharness or connector.

OK

4

Check wireharness and connector between power window switch and power
window master switch.

NG

Repair or replace wireharness or connector.

OK

Proceed to next circuit inspection shown on
problem symptoms table 
(See page DI–647).

DIAGNOSTICS

ENGINE

DI–1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–1

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–2

. . . 

PRE–CHECK

DI–3

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DIAGNOSTIC TROUBLE CODE CHART

DI–14

. . . . . . 

PARTS LOCATION

DI–18

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–19

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–21

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–22

. . . . . . . . . . . . . . . . . . . . . 

AUTOMATIC TRANSAXLE

DI–142

. . . . . . . . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–142

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–143

. . . 

PRE–CHECK

DI–144

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DIAGNOSTIC TROUBLE CODE CHART

DI–155

. . . . . . 

PARTS LOCATION

DI–157

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–158

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–160

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–163

. . . . . . . . . . . . . . . . . . . . . 

ABS & BA & TRC & VSC SYSTEM

DI–203

. . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–203

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–204

. . . 

PRE–CHECK

DI–205

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DIAGNOSTIC TROUBLE CODE CHART

DI–213

. . . . . . 

PARTS LOCATION

DI–216

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–217

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–220

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–222

. . . . . . . . . . . . . . . . . . . . . 

SUPPLEMENTAL RESTRAINT SYSTEM

DI–303

. . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–303

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–304

. . . 

PRE–CHECK

DI–305

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DIAGNOSTIC TROUBLE CODE CHART

DI–311

. . . . . . 

PARTS LOCATION

DI–314

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–315

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–317

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–318

. . . . . . . . . . . . . . . . . . . . . 

THEFT DETERRENT SYSTEM

DI–443

. . . . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–443

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–444

. . . 

PRE–CHECK

DI–445

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

PARTS LOCATION

DI–450

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–451

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–452

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–453

. . . . . . . . . . . . . . . . . . . . . 

CRUISE CONTROL SYSTEM

DI–472

. . . . . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–472

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–473

. . . 

PRE–CHECK

DI–474

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DIAGNOSTIC TROUBLE CODE CHART

DI–479

. . . . . . 

PARTS LOCATION

DI–480

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–481

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–483

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–484

. . . . . . . . . . . . . . . . . . . . . 

ENGINE IMMOBILISER SYSTEM

DI–520

. . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–520

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–521

. . . 

PRE–CHECK

DI–522

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

DIAGNOSTIC TROUBLE CODE CHART

DI–525

. . . . . . 

PARTS LOCATION

DI–526

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–527

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–528

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–529

. . . . . . . . . . . . . . . . . . . . . 

COMBINATION METER SYSTEM

DI–537

. . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–537

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–538

. . . 

PROBLEM SYMPTOMS TABLE

DI–539

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–541

. . . . . . . . . . . . . . . . . . . . . 

SLIDING ROOF SYSTEM

DI–553

. . . . . . . . . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–553

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–554

. . . 

PARTS LOCATION

DI–555

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–556

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–557

. . . . . . . . . . . . . 

CIRCUIT INSPECTION

DI–558

. . . . . . . . . . . . . . . . . . . . . 

BODY CONTROL SYSTEM

DI–564

. . . . . . . . . . . . . . . 

HOW TO PROCEED WITH 

TROUBLESHOOTING

DI–564

. . . . . . . . . . . . . . . . . . . . 

CUSTOMER PROBLEM ANALYSIS CHECK

DI–565

. . . 

PARTS LOCATION

DI–566

. . . . . . . . . . . . . . . . . . . . . . . . . 

TERMINALS OF ECU

DI–567

. . . . . . . . . . . . . . . . . . . . . . 

PROBLEM SYMPTOMS TABLE

DI–570

. . . . . . . . . . . . .