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.
Text in Illustration
*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 |
Removal
REMOVAL
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The procedure listed below is for the LH side.
PROCEDURE
1. REMOVE REAR WHEEL
2. SEPARATE REAR SPEED SENSOR
(a) Remove the bolt and se ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...
Disposal
DISPOSAL
CAUTION / NOTICE / HINT
CAUTION:
Before performing pre-disposal deployment of any SRS part, review and closely
follow all applicable environmental and hazardous material regulations. Pre-disposal
deployment may be considered hazardous material ...