DESCRIPTION
The main body ECU (multiplex network body ECU) receives switch signals from the door control switch assembly on the front passenger door and activates the door lock motor on each door according to these signals.
WIRING DIAGRAM
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (Door Lock SW-Lock, Door Lock SW-Unlock) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Main Body
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Door Lock SW-Lock |
Door control switch (power window regulator master switch assembly) or door control switch assembly lock signal/ON or OFF |
ON: Lock side of door control switch (power window regulator master switch assembly) or door control switch assembly pushed OFF: Lock side of door control switch (power window regulator master switch assembly) and door control switch assembly not pushed |
- |
Door Lock SW-Unlock |
Door control switch (power window regulator master switch assembly) or door control switch assembly unlock signal/ON or OFF |
ON: Unlock side of door control switch (power window regulator master switch assembly) or door control switch assembly pushed OFF: Unlock side of door control switch (power window regulator master switch assembly) or door control switch assembly not pushed |
- |
OK:
The Techstream indicates ON or OFF according to the switch operation shown in the table.
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
2. |
INSPECT DOOR CONTROL SWITCH ASSEMBLY |
(a) Remove the door control switch assembly (See page
).
(b) Inspect the door control switch assembly.
(1) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG | ![]() |
REPLACE DOOR CONTROL SWITCH ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(a) Disconnect the 1D driver side junction block connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D27-2 (UL) - 1D-26 (UL1) |
Always |
Below 1 Ω |
D27-4 (L) - 1D-10 (L1) |
Always |
Below 1 Ω |
D27-5 (E) - Body ground |
Always |
Below 1 Ω |
D27-2 (UL) - Body ground |
Always |
10 kΩ or higher |
D27-4 (L) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK DRIVER SIDE JUNCTION BLOCK |
(a) Remove the driver side junction block (See page
).
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1D-16 - MB-22 (UL1) |
Always |
Below 1 Ω |
1D-23 - MB-20 (L1) |
Always |
Below 1 Ω |
1D-16 - Body ground |
Always |
10 kΩ or higher |
1D-23 (L1) - Body ground |
Always |
10 kΩ or higher |
*a |
Component without harness connected (driver side junction block) |
- |
- |
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | ![]() |
REPLACE DRIVER SIDE JUNCTION BLOCK |
Fail-safe Chart
FAIL-SAFE CHART
HINT:
If any of the following auto cancel conditions are detected while the dynamic
radar cruise control system is controlling vehicle speed, the system clears the
stored vehicle speed and cancels control of vehicle speed by the dynamic radar cruise
control system.
Automatic ...
Master Module Horizontal Axis Misalignment (C1AC1)
DESCRIPTION
This DTC is stored when the angle of the blind spot monitor sensor LH deviates
more than the allowable range from the horizontal axis.
HINT:
If drum tester such as a speedometer tester, brake/speedometer combination tester
or chassis dynamometer is used with the blind spot monitor ...
Front Right Seat Heat Sensor Circuit (B14C0)
DESCRIPTION
Output to the front seat cushion heater assembly RH temperature sensor stops
if one of the following occurs: 1) the temperature sensor is open or shorted; or
2) the temperature sensor is damaged and its output value does not change.
DTC Code
DTC Detection Cond ...