| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM1000000021IN7 |
| Model Year Start: 2022 | Model: RAV4 | Prod Date Range: [12/2021 - ] |
| Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: Speedometer Malfunction; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ] | ||
|
Speedometer Malfunction |
DESCRIPTION
for HV Model:
-
The combination meter assembly receives vehicle speed signals from the brake actuator assembly (No. 2 skid control ECU) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the brake actuator assembly (No. 2 skid control ECU). The brake actuator assembly (No. 2 skid control ECU) supplies power to the vehicle speed sensor. The brake actuator assembly (No. 2 skid control ECU) detects vehicle speed signals based on pulses of the voltage.
HINT:
-
Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using the Techstream. For details about testing and the margin of error, see the reference chart.
Click here
![2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: OPERATION CHECK](/t3Portal/stylegraphics/info.gif)
-
If the vehicle speed sensor circuit has a malfunction, the brake actuator assembly (No. 2 skid control ECU) stores DTCs. Troubleshoot the electronically controlled brake system.
Click here
-
Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using the Techstream. For details about testing and the margin of error, see the reference chart.
for Gasoline Model:
-
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:
-
Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using the Techstream. For details about testing and the margin of error, see the reference chart.
Click here
-
If the vehicle speed sensor circuit has a malfunction, the brake actuator assembly (skid control ECU) stores DTCs. Troubleshoot the electronically controlled brake system.
Click here
-
Factors that affect the indicated vehicle speed include the tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using the Techstream. For details about testing and the margin of error, see the reference chart.
WIRING DIAGRAM
for HV Model:
for Gasoline Model:
CAUTION / NOTICE / HINT
NOTICE:
-
If the vehicle speed is outside the allowable range when tested, perform the operation check.
Click here
- When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
HINT:
Before starting the following inspection, check tire size and tire air pressure.
PROCEDURE
|
1. |
CHECK CAN COMMUNICATION SYSTEM |
(a) Check if CAN communication DTCs are output.
for HV Model:
Click here
for Gasoline Model:
Click here
|
Result |
Proceed to |
|---|---|
|
CAN communication DTCs are not output. (for HV Model) |
A |
|
CAN communication DTCs are not output. (for Gasoline Model) |
B |
|
CAN communication DTCs are output. |
C |
| B |
|
| C |
|
GO TO CAN COMMUNICATION SYSTEM for HV Model: Click here
for Gasoline Model: Click here
|
|
|
2. |
CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Check for DTCs.
Click here
Chassis > ABS/VSC/TRAC > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
Electronically controlled brake system DTCs are not output. |
A |
|
Electronically controlled brake system DTC is output. |
B |
| B |
|
GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM
|
|
|
3. |
READ VALUE USING TECHSTREAM |
(a) Using the Techstream, read the Data List.
Click here
Body Electrical > Combination Meter > Data List
|
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 same as actual vehicle speed |
- |
Body Electrical > Combination Meter > Data List
|
Tester Display |
|---|
|
Vehicle Speed Meter |
HINT:
- When the Data List values of the ECUs match, an internal malfunction of the combination meter assembly is suspected.
- When the Data List values of the ECUs do not match, a signal output error of the brake actuator assembly (No. 2 skid control ECU) or an internal malfunction of the combination meter assembly is suspected.
OK:
Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).
| OK |
|
REPLACE COMBINATION METER ASSEMBLY
|
|
|
4. |
READ VALUE USING TECHSTREAM |
(a) Using the Techstream, read the Data List.
Click here
Chassis > ABS/VSC/TRAC > 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.: 326 km/h (202 mph) |
Almost same as actual vehicle speed Vehicle stopped: 0 km/h (0 mph) |
When driving at constant speed: No large fluctuations |
Chassis > ABS/VSC/TRAC > Data List
|
Tester Display |
|---|
|
Vehicle Speed |
OK:
Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).
| OK |
|
REPLACE COMBINATION METER ASSEMBLY
|
| NG |
|
REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)
|
|
5. |
CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM) |
(a) Check for DTCs.
Click here
Chassis > Brake/EPB > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
Electronically controlled brake system DTCs are not output. |
A |
|
Electronically controlled brake system DTC is output. |
B |
| B |
|
|
|
6. |
READ VALUE USING TECHSTREAM |
(a) Using the Techstream, read the Data List.
Click here
Body Electrical > Combination Meter > Data List
|
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 same as actual vehicle speed |
- |
Body Electrical > Combination Meter > Data List
|
Tester Display |
|---|
|
Vehicle Speed Meter |
HINT:
- When the Data List values of the ECUs match, an internal malfunction of the combination meter assembly is suspected.
- When the Data List values of the ECUs do not match, a signal output error of the brake actuator assembly (skid control ECU) or an internal malfunction of the combination meter assembly is suspected.
OK:
Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).
| OK |
|
REPLACE COMBINATION METER ASSEMBLY
|
|
|
7. |
READ VALUE USING TECHSTREAM |
(a) Using the Techstream, read the Data List.
Click here
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 (4072.34 mph) |
Almost same as actual vehicle speed Vehicle stopped: 0 km/h (0 mph) |
When driving at constant speed: No large fluctuations |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
Vehicle Speed |
OK:
Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).
| OK |
|
REPLACE COMBINATION METER ASSEMBLY
|
| NG |
|
REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU)
|
|
|