DESCRIPTION
The combination meter assembly receives vehicle speed signals from the brake actuator assembly (skid control ECU) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the brake actuator assembly (skid control ECU). The brake actuator assembly (skid control ECU) supplies power to the vehicle speed sensor. The brake actuator assembly (skid control ECU) detects vehicle speed signals based on pulses of the voltage.
HINT:
Click here
Click here
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
HINT:
PROCEDURE
1. | CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication DTCs are output.
Click here
Result | Proceed to |
---|---|
CAN communication DTCs are not output. | A |
CAN communication DTCs are output. | B |
B | ![]() | GO TO CAN COMMUNICATION SYSTEM |
|
2. | CONFIRM MODEL |
(a) Choose the model to be inspected.
Result | Proceed to |
---|---|
for Optitron Meter Type | A |
for TFT Meter Type | B |
B | ![]() | GO TO STEP 4 |
|
3. | PERFORM ACTIVE TEST USING TECHSTREAM (SPEED METER OPERATION) |
(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 / Combination Meter / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Combination Meter > Active Test Tester Display | Measurement Item | Control Range | Diagnostic Note |
---|---|---|---|
Speed Meter Operation | Speedometer |
| There is a deviation in the values displayed on the speedometer (Control range → Speedometer display) for Optitron Meter Type (mph)*1:
for Optitron Meter Type (km/h)*2:
|
Tester Display |
---|
Speed Meter Operation |
OK:
Speedometer indication is normal.
NG | ![]() | REPLACE COMBINATION METER ASSEMBLY |
|
4. | CHECK FOR DTC |
(a) Check if vehicle stability control system DTCs are output.
Click here
Result | Proceed to |
---|---|
Vehicle stability control system DTCs are not output. | A |
Vehicle stability control system DTCs are output. | B |
B | ![]() | GO TO VEHICLE STABILITY CONTROL SYSTEM |
|
5. | READ VALUE USING TECHSTREAM (VEHICLE SPEED, VEHICLE SPEED METER) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus:
(1) for ABS/VSC/TRC/EPB: Chassis / ABS/VSC/TRC/EPB / Data List.
(2) for Combination Meter: Body Electrical / Combination Meter / Data List.
(e) Read the Data List according to the display on the Techstream.
Chassis > Brake/EPB > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Vehicle Speed | Maximum wheel speed sensor reading | Min.: 0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph) | Vehicle stopped: 0 km/h (0 mph) | When driving at constant speed: No large fluctuations |
Tester Display |
---|
Vehicle Speed |
Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
---|---|---|---|---|
Vehicle Speed Meter | Vehicle speed | Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) | Almost the same as actual vehicle speed | - |
Tester Display |
---|
Vehicle Speed Meter |
Result | Proceed to |
---|---|
The Data List values of the ECUs match. | A |
The Data List values of the ECUs do not match. | B |
HINT:
A | ![]() | REPLACE COMBINATION METER ASSEMBLY |
|
6. | REPLACE COMBINATION METER ASSEMBLY |
(a) Replace the combination meter assembly with a new one.
Click here
OK:
The operation of the speedometer returns to normal.
OK | ![]() | END |
NG | ![]() | REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) |
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