DESCRIPTION
The power management control ECU and the combination meter are connected by a cable and the CAN communication lines. This DTC is stored when the vehicle speed signal information from the cable and the vehicle speed signal information from the CAN communication line are inconsistent.
HINT:
When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode is reset to on (IG). When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2282 |
The vehicle speed signal information from the cable and the vehicle speed signal information from the CAN communication line are inconsistent. |
|
The skid control ECU converts signals from the speed sensor into 4-pulse signals and sends them to the combination meter. After these signals are converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, they are then transmitted to the power management control ECU. The power management control ECU determines the vehicle speed based on the frequencies of these pulse signals.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2283 |
Both conditions are met:
|
|
HINT:
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - COMBINATION METER) |
(a) Disconnect the F80 power management control ECU connector.
(b) Disconnect the F14 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F80-23 (SPD) - F14-28 (+S) |
Always |
Below 1 Ω |
F80-23 (SPD) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
READ VALUE USING TECHSTREAM (VEHICLE SPEED SIGNAL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Power Source Control / Data List.
(e) According to the display on the Techstream, read the Data List.
Power Source Control
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Vehicle Speed Signal |
Vehicle speed signal / Stop or Run |
Stop: Vehicle stopped Run: Vehicle driven (5 km/h (3 mph) or higher) |
- |
OK:
Stop (vehicle stopped) or Run (vehicle driven) appears on the screen according the vehicle speed.
OK | ![]() |
GO TO METER/GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
|
5. |
CHECK POWER MANAGEMENT CONTROL ECU |
(a) Using an oscilloscope, check the vehicle speed input signal waveform from the combination meter at the terminal of the power management control ECU.
*a |
Component with harness connected (Power Management Control ECU) |
- |
- |
(b) Check the signal waveform according to the condition(s) in the table below. Standard Frequency:
|
|
OK | ![]() |
REPLACE POWER MANAGEMENT CONTROL ECU |
NG | ![]() |
GO TO METER/GAUGE SYSTEM (TERMINALS OF ECU) |
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