Toyota Venza: LIN Communication Master Malfunction (B2287)
DESCRIPTION
This DTC is stored when there is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly).
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B2287 |
There is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly). |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- If the certification ECU (smart key ECU assembly) is replaced, register the key.
- When using the Techstream to troubleshoot with the ignition switch off:
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 DTC OUTPUT |
(a) Clear the DTC (See page .gif)
).
(b) Recheck for DTCs.
HINT:
Check for certification ECU and power source control ECU DTCs.
|
Result |
Proceed to |
|---|---|
|
Only DTC B2287 is output. |
A |
|
DTC B2287 and B2785 are output simultaneously. |
B |
HINT:
When DTC B2287 and B2785 are output simultaneously, perform troubleshooting for DTC B2785 first.
| B | .gif) |
GO TO DTC B2785 |
|
.gif)
|
2. |
CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - POWER MANAGEMENT CONTROL ECU) |
|
(a) Disconnect the D25 and D43 ECU connectors. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D25-29 (LIN) - D43-24 (LIN2) |
Always |
Below 1 Ω |
|
D25-29 (LIN) - Body ground |
Always |
10 kΩ or higher |
|
*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) |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
REPLACE POWER MANAGEMENT CONTROL ECU |
(a) Replace the power management control ECU (See page
).
|
|
4. |
CHECK DTC OUTPUT |
(a) Clear the DTC (See page ).
(b) Recheck for DTCs.
OK:
DTC B2287 is not output.
| OK | |
END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE) |
| NG | |
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) |
Sliding Roof ECU Communication Stop (B1273)
DESCRIPTION
This DTC is stored when LIN communication between the sliding roof ECU (sliding
roof drive gear sub-assembly) and main body ECU (driver side junction block assembly)
stops for more th ...
Lost Communication with AFS LIN (B124D)
DESCRIPTION
Refer to DTC B124D (Lighting system) (See page
).
DTC No.
DTC Detection Condition
Trouble Area
B124D
Malfunctions in LIN co ...
Other materials about Toyota Venza:
Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component
Amplifier
DESCRIPTION
The navigation receiver assembly sends a sound signal to the stereo component
amplifier assembly via this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier
assembly, and then is sent to the speakers.
...
Freeze Frame Data
FREEZE FRAME DATA
1. CHECK FREEZE FRAME DATA
(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 / Navigation System / Trouble
Codes.
(e) Select a DTC to ...
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR WHEELS
2. REMOVE CENTER EXHAUST PIPE ASSEMBLY
(a) Remove the center exhaust pipe assembly.
HINT:
Refer to the instructions for Removal of the exhaust pipe (See page
for 2GR-FE,
for 1AR-FE).
3. REMOVE PROPELLER WITH ...
0.1183