DESCRIPTION
The main body ECU (driver side junction block assembly) receives switch signals from the door control switch and activates the door lock motor on each door according to these signals.
WIRING DIAGRAM
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (DOOR CONTROL SWITCH) |
(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 (Main Body ECU (Driver Side Junction Block Assembly))
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Door Lock SW-Lock |
Front passenger side door control switch lock signal/ON or OFF |
ON: Front passenger side door control switch pushed to lock position OFF: Front passenger side door control switch not pushed to lock position |
- |
Door Lock SW-Unlock |
Front passenger side door control switch unlock signal/ON or OFF |
ON: Front passenger side door control switch pushed to unlock position OFF: Front passenger side door control switch not pushed to unlock position |
- |
OK:
On the Techstream screen, ON or OFF will be displayed accordingly.
OK |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
|
2. |
INSPECT DOOR CONTROL SWITCH ASSEMBLY |
(a) Remove the door control switch assembly (See page ). |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
4 (L) - 3 (E) |
Lock |
Below 1 Ω |
4 (L) - 3 (E) |
Off |
10 kΩ or higher |
2 (UL) - 3 (E) |
Unlock |
Below 1 Ω |
2 (UL) - 3 (E) |
Off |
10 kΩ or higher |
*1 |
Component without harness connected (Door Control Switch Assembly) |
*2 |
Unlock |
*3 |
Lock |
NG |
REPLACE DOOR CONTROL SWITCH ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH - MAIN BODY ECU AND BODY GROUND) |
(a) Disconnect the 2J 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 |
---|---|---|
H6-2 (UL) - 2J-4 (UL1) |
Always |
Below 1 Ω |
H6-4 (L) - 2J-3 (L1) |
Always |
Below 1 Ω |
H6-3 (E) - Body ground |
Always |
Below 1 Ω |
H6-2 (UL) - Body ground |
Always |
10 kΩ or higher |
H6-4 (L) - Body ground |
Always |
10 kΩ or higher |
*1 |
Front view of wire harness connector (to Door Control Switch Assembly) |
*2 |
Front view of wire harness connector (to Main Body ECU (Driver Side Junction Block Assembly)) |
OK |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Terminals Of Ecu
TERMINALS OF ECU
1. CHECK POSITION CONTROL ECU AND SWITCH ASSEMBLY
(a) Disconnect the T10 and T11 position control ECU and switch assembly connectors.
(b) Measure the voltage and resistance according to the value(s) in the table
below.
HINT:
Measure t ...
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct procedure
given in these sections.
CAUTION
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System Description
SYSTEM DESCRIPTION
1. DESCRIPTION
(a) The steering lock system locks/unlocks the steering when by activating the
steering lock bar with a motor. The steering lock ECU (steering lock actuator assembly)
activates the motor based on signals from the certifi ...