DESCRIPTION
The multiplex network door ECU receives a back door open/closed signal from the back door lock.
WIRING DIAGRAM
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (BACK DOOR COURTESY LIGHT SWITCH) |
(a) Using the Techstream, read the Data List (See page
).
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Back Door Courtesy Switch |
Back door courtesy light switch signal / ON or OFF |
ON: Back door open OFF: Back door closed |
- |
OK:
Tester display changes according to opening and closing of back door.
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT BACK DOOR LOCK ASSEMBLY (BACK DOOR COURTESY LIGHT SWITCH) |
(a) Remove the back door lock (See page ).
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2 - 3 |
Open-latch |
Below 1 Ω |
Full-latch |
10 kΩ or higher |
![]() |
Full-latch |
![]() |
Open-latch |
NG | ![]() |
REPLACE BACK DOOR LOCK ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK ASSEMBLY - MULTIPLEX NETWORK DOOR ECU) |
(a) Disconnect the W8 back door lock connector.
(b) Disconnect the W10 multiplex network door ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
W8-2 (S) - W10-10 (BDCY) |
Always |
Below 1 Ω |
W8-2 (S) - Body ground |
Always |
10 kΩ or higher |
W8-3 (E) - W10-18 (CTYE) |
Always |
Below 1 Ω |
W8-3 (E) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
REPLACE MULTIPLEX NETWORK DOOR ECU |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
HINT:
If a trouble code is output during the DTC check, inspect the trouble areas listed
for that code. For details of code, refer to the "See page" below.
CAN Communication System
DTC Code
De ...
System Description
SYSTEM DESCRIPTION
1. GENERAL
(a) The heater and blower both have 3 levels controlled by operating the dial-type
refreshing seat switch, which is located in the upper console panel.
(b) The on/off state of the heater or blower can be determined by checkin ...