| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EA9M |
| Model Year Start: 2019 | Model: RAV4 | Prod Date Range: [11/2018 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): C050049,C050649; Left Front Wheel Speed Sensor Internal Electronic Failure; 2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ] | ||
|
DTC |
C050049 |
Left Front Wheel Speed Sensor Internal Electronic Failure |
|
DTC |
C050649 |
Right Front Wheel Speed Sensor Internal Electronic Failure |
DESCRIPTION
When the system is starting up and the skid control ECU (brake actuator assembly) detects a speed sensor circuit malfunction via the speed sensor circuit self-diagnosis function, this DTC is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C050049 |
Left Front Wheel Speed Sensor Internal Electronic Failure |
A circuit malfunction in the speed sensor is detected during the self test. |
|
|
C050649 |
Right Front Wheel Speed Sensor Internal Electronic Failure |
A circuit malfunction in the speed sensor is detected during the self test. |
|
WIRING DIAGRAM
Refer to DTC C050012.
Click here
![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): C050012,C050612; Left Front Wheel Speed Sensor Circuit Short to Battery](/t3Portal/stylegraphics/info.gif)
CAUTION / NOTICE / HINT
NOTICE:
-
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
Click here
-
After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
Click here
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (SENSOR CIRCUIT) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. |
|
(b) Disconnect the A91 or A92 front speed sensor connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the ignition switch to ON.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-1 (FL+) - A92-2 (FL-) |
Ignition switch ON |
11 to 14 V |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-1 (FR+) - A91-2 (FR-) |
Ignition switch ON |
11 to 14 V |
| NG |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE CIRCUIT) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. |
|
(b) Disconnect the A91 or A92 front speed sensor connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-1 (FL+) - Body ground |
Ignition switch off |
Below 1.5 V |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-1 (FR+) - Body ground |
Ignition switch off |
Below 1.5 V |
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR - BRAKE ACTUATOR ASSEMBLY) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A91 or A92 front speed sensor connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-2 (FL-) or A39-7 (FL-) - Body ground |
Always |
10 kΩ or higher |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-2 (FR-) or A39-26 (FR-) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR - BRAKE ACTUATOR ASSEMBLY) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. |
|
(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A91 or A92 front speed sensor connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-1 (FL+) - Body ground |
Always |
Below 1.5 V |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-1 (FR+) - Body ground |
Always |
Below 1.5 V |
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE CIRCUIT) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. |
|
(b) Disconnect the A91 or A92 front speed sensor connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the ignition switch to ON.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-1 (FL+) - Body ground |
Ignition switch ON |
11 to 14 V |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-1 (FR+) - Body ground |
Ignition switch ON |
11 to 14 V |
| NG |
|
|
|
6. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR - BRAKE ACTUATOR ASSEMBLY) |
|
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors. OK: The connector is securely connected. |
|
(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A91 or A92 front speed sensor connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-2 (FL-) - Body ground |
Always |
Below 1.5 V |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-2 (FR-) - Body ground |
Always |
Below 1.5 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
7. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR - BRAKE ACTUATOR ASSEMBLY) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A91 or A92 front speed sensor connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-2 (FL-) - A39-7 (FL-) |
Always |
Below 1 Ω |
|
A92-1 (FL+) or A39-24 (FL+) - A92-2 (FL-) or A39-7 (FL-) |
Always |
10 kΩ or higher |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-2 (FR-) - A39-26 (FR-) |
Always |
Below 1 Ω |
|
A91-1 (FR+) or A39-21 (FR+) - A91-2 (FR-) or A39-26 (FR-) |
Always |
10 kΩ or higher |
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
8. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR - BRAKE ACTUATOR ASSEMBLY) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(b) Disconnect the A39 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A91 or A92 front speed sensor connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for LH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A92-1 (FL+) - A39-24 (FL+) |
Always |
Below 1 Ω |
|
A92-1 (FL+) or A39-24 (FL+) - Body ground |
Always |
10 kΩ or higher |
for RH
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A91-1 (FR+) - A39-21 (FR+) |
Always |
Below 1 Ω |
|
A91-1 (FR+) or A39-21 (FR+) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|