Toyota Corolla Cross: Right Front Wheel Speed Sensor Circuit Short to Battery (C050612)
DESCRIPTION
Each speed sensor detects wheel speed and sends signals to the skid control ECU (brake actuator assembly). These signals are used by the ABS control.
The speed sensor detects the magnetic fields of the speed sensor rotor as it rotates and outputs a pulse signal.
The frequency of the pulse varies in accordance with the rotational speed of the speed sensor rotor and the system uses this to determine the wheel speed.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C050612 |
Right Front Wheel Speed Sensor Circuit Short to Battery |
A short to +B in the speed sensor signal circuit is detected for 0.12 seconds or more. |
|
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (SENSOR GROUND 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 A34 front speed sensor RH 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:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A34-2 (FR+) - A34-1 (FR-) |
Ignition switch ON |
11 to 14 V |
| OK | .gif)
|
REPLACE FRONT SPEED SENSOR RH |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR RH - 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 A151 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A34 front speed sensor RH 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:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A34-1 (FR-) - Body ground |
Always |
Below 1.5 V |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR RH - 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 A151 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A34 front speed sensor RH 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:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A34-2 (FR+) or A151-21 (FR+) - A34-1 (FR-) or A151-26 (FR-) |
Always |
10 kΩ or higher |
| OK |
|
REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Right Front Wheel Speed Sensor Circuit Short to Ground or Open (C050614)
DESCRIPTION
Refer to DTC C050612
Click here
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C050614
Right Front
Right Front Wheel Speed Sensor Circuit Voltage Out of Range (C05061C)
DESCRIPTION
Refer to DTC C050612
Click here
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C05061C
Right Front
Right Front Wheel Speed Sensor Circuit Intermittent (C05061F)
DESCRIPTION
Refer to DTC C050612
Click here
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
C05061F
Right Front
SEE MORE:
Installation
INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION)
Procedure Part Name Code
1 FRONT SEATBACK EDGE PROTECTOR
71587 -
- -
2 FRONT SEATBACK FELT
79977A -
- -
3 LUMBAR SUPPORT ADJUSTER ASSEMBLY
7
Fail-safe Chart
FAIL-SAFE CHART If any of the following DTCs are stored, the ECM enters fail-safe mode to allow the vehicle to be driven temporarily or stops fuel injection.
DTC Code Component
Fail-Safe Operation Fail-Safe Deactivation Condition
P001001 P001600 P136001 P136201 P261401
C
