DESCRIPTION
The skid control ECU converts these signals into 4-pulse signals and sends them to the combination meter. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the power source control ECU. The power source control ECU determines the vehicle speed based on the frequency of these pulse signals.
Tech Tips
When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2283 | When both conditions below are met:
|
|
INSPECTION PROCEDURE
PROCEDURE
CHECK FOR DTC
Clear the DTC Click here.
Check for DTC B2282 and DTC B2283.
| OK | ||||||||
|---|---|---|---|---|---|---|---|---|
|
Tech Tips
If DTC B2282 and DTC B2283 are output, perform troubleshooting for DTC B2282 first.
| B |
|
GO TO OTHER FLOW CHART (DTC B2282) Click here |
| C |
|
USE SIMULATION METHOD TO CHECK Click here |
| A |
|
CHECK FOR DTC
Check for DTC.
Tech Tips
If vehicle stability control system DTCs are output, perform troubleshooting for vehicle stability control system DTCs.
| NG |
|
GO TO DIAGNOSTIC TROUBLE CODE CHART (VEHICLE STABILITY CONTROL SYSTEM) Click here |
| OK |
|
READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED SIGNAL)
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Check the Data List for proper functioning of the vehicle speed signal.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Vehicle Speed Signal | Vehicle speed signal / STOP or RUN | STOP: Vehicle is stopped RUN: Vehicle is running |
- |
| OK |
|---|
| STOP (vehicle is stopped) and RUN (vehicle is running) appear on the screen. |
| NG |
|
GO TO METER / GAUGE SYSTEM (SPEEDOMETER MALFUNCTION) Click here |
| OK |
|
REPLACE POWER SOURCE CONTROL ECU