BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C050014 Left Front Wheel Speed Sensor Circuit Short to Ground or Open C050614 Right Front Wheel Speed Sensor Circuit Short to Ground or Open
DESCRIPTION
Refer to DTC C050012
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C050014 | Left Front Wheel Speed Sensor Circuit Short to Ground or Open | A short or open circuit is detected in the speed sensor signal circuit for 0.12 seconds or more. | ·
Front speed sensor LH ·
Wire harness or connector ·
Skid control ECU (brake actuator assembly) |
| C050614 | Right Front Wheel Speed Sensor Circuit Short to Ground or Open | A short or open circuit is detected in the speed sensor signal circuit for 0.12 seconds or more. | ·
Front speed sensor RH ·
Wire harness or connector ·
Skid control ECU (brake actuator assembly) |
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | - | - | - |
| Malfunction Status | An open circuit is detected in the speed sensor signal circuit. | ○ | - |
| A short circuit is detected in the speed sensor signal circuit. | - | ○ | |
| Detection Time | 0.12 seconds or more. | 0.12 seconds or more. | |
| Number of Trips | 1 trip | 1 trip | |
- HINT:
-
DTC will be output when conditions for either of the patterns in the table above are met.
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | - | - | - |
| Malfunction Status | An open circuit is detected in the speed sensor signal circuit. | ○ | - |
| A short circuit is detected in the speed sensor signal circuit. | - | ○ | |
| Detection Time | 0.12 seconds or more. | 0.12 seconds or more. | |
| Number of Trips | 1 trip | 1 trip | |
- HINT:
-
DTC will be output when conditions for either of the patterns in the table above are met.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
·After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
PROCEDURE
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Disconnect the A58 or A57 front speed sensor connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
for LH Tester Connection Condition Specified Condition A57-1 (FL-) - A28-8 (FL-) Always Below 1 Ω A57-1 (FL-) or A28-8 (FL-) - Body ground Always 10 kΩ or higher
for RH Tester Connection Condition Specified Condition A58-1 (FR-) - A28-4 (FR-) Always Below 1 Ω A58-1 (FR-) or A28-4 (FR-) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *A | for LH |
| *B | for RH |
| *a | Front view of wire harness connector
(to Front Speed Sensor) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A58 or A57 front speed sensor connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
for LH Tester Connection Condition Specified Condition A57-2 (FL+) - A57-1 (FL-) Ignition switch ON 11 to 14 V
for RH Tester Connection Condition Specified Condition A58-2 (FR+) - A58-1 (FR-) Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG