DESCRIPTION
This DTC is stored when LIN communication from the certification ECU stops for a certain amount of time.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2785 |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Connect the Techstream to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - EACH ECU) |
(a) Disconnect the D25, D43 and D17 ECU connectors.
*1 |
Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly)) |
*2 |
Front view of wire harness connector (to Power Management Control ECU) |
*3 |
Front view of wire harness connector (to Steering Lock ECU (Steering Lock Actuator Assembly)) |
- |
- |
(b) Measure the resistance and voltage according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-29 (LIN) - D17-5 (LIN) |
Always |
Below 1 Ω |
D25-29 (LIN) - D43-24 (LIN2) |
Always |
Below 1 Ω |
D25-29 (LIN) - Body ground |
Always |
10 kΩ or higher |
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D25-29 (LIN) - Body ground |
Always |
Below 1 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK DTC OUTPUT (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)) |
(a) Reconnect the D25 and D43 ECU connectors.
(b) Clear the DTC (See page ).
(c) Recheck for DTCs.
Result |
Proceed to |
---|---|
DTC B2785 is output |
A |
DTC B2785 is not output |
B |
B | ![]() |
REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) |
|
3. |
CHECK DTC OUTPUT (POWER MANAGEMENT CONTROL ECU) |
(a) Reconnect the D17 ECU connector.
(b) Disconnect the D43 ECU connector.
(c) Clear the DTC (See page ).
(d) Recheck for DTCs.
Result |
Proceed to |
---|---|
DTC B2785 is output |
A |
DTC B2785 is not output |
B |
A | ![]() |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
B | ![]() |
REPLACE POWER MANAGEMENT CONTROL ECU |
Occupant Classification Ecu
Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to follow the correct removal and installation procedures of the occupant
classification ECU.
PROCEDURE
1. ...
System Diagram
SYSTEM DIAGRAM
Communication Table
Transmitting ECU (Transmitter)
Receiving ECU
Signal
Communication Method
Main body ECU (Driver side junction block assembly)
Certification ECU (Sm ...
Precaution
PRECAUTION
1. PRECAUTION FOR DISCONNECTING THE BATTERY CABLE
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected:
System
See Procedure
...