Door Courtesy Switch Circuit

DESCRIPTION

The body ECU detects the condition of the door courtesy switch assembly.

WIRING DIAGRAM

INSPECTION PROCEDURE

1. READ VALUE OF INTELLIGENT TESTER

1. Connect the intelligent tester to the DLC3.

2. Turn the ignition switch to the ON position and press the intelligent tester main switch ON.

3. Select the items below in the DATA LIST, and read the displays on the intelligent tester.

   BODY NO.1: 

   Item	Measurement Item/ Display (Range)	Normal Condition	Diagnostic Note
   D Door Courtesy SW	Driver's door courtesy SW signal/ON or OFF OK	ON: Driver's door is open OFF: Driver's door is closed	-
   Rear Door Courtesy SW	Rear door courtesy SW signal/ON or OFF	ON: Either right or left rear door is open OFF: Both the right and left doors are closed	-

NG	Go to step 2

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

2. INSPECT COURTESY LIGHT SWITCH

1. Inspect the front door courtesy switch (Click here).

2. Inspect the rear door courtesy switch (Click here).

NG	REPLACE COURTESY LIGHT SWITCH

OK

3. CHECK HARNESS AND CONNECTOR (COURTESY LIGHT SWITCH - INSTRUMENT PANEL J/B ASSEMBLY)

1. Disconnect the 1O, B5 and B7 connectors from the instrument panel junction block assembly.

2. Measure the resistance according to the value(s) in the table below.
   
   

   Resistance:

   Tester connection	Condition	Specified condition
   B5-14 - Body ground (*1) B7-23 - Body ground (*2)	Front LH door is OPEN Front LH door is CLOSE	Below 1 Ω 10 kΩ or higher
   B7-23 - Body ground (*1) B5-14 - Body ground (*2)	Front RH door is OPEN Front RH door is CLOSE	Below 1 Ω 10 kΩ or higher
   1O-7 - Body ground	Rear LH door is OPEN Rear LH door is CLOSE	Below 1 Ω 10 kΩ or higher
   B5-16 - Body ground	Rear RH door is OPEN Rear RH door is CLOSE	Below 1 Ω 10 kΩ or higher

   *1: LHD*2: RHD

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE