BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/o VSC OFF Switch) C050C14 Left Rear Wheel Speed Sensor Circuit Short to Ground or Open C051214 Right Rear Wheel Speed Sensor Circuit Short to Ground or Open
DESCRIPTION
Refer to DTC C050C12
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C050C14 | Left Rear 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. | ·
Rear speed sensor RH (rear speed sensor) ·
Wire harness or connector ·
Skid control ECU (brake actuator assembly) |
| C051214 | Right Rear 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. | ·
Rear speed sensor LH (rear speed sensor) ·
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 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 X1 rear 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 X1-3 (RL-) - A28-18 (RL-) Always Below 1 Ω X1-3 (RL-) or A28-18 (RL-) - Body ground Always 10 kΩ or higher
for RH Tester Connection Condition Specified Condition X1-1 (RR-) - A28-29 (RR-) Always Below 1 Ω X1-1 (RR-) or A28-29 (RR-) - 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 Rear 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 X1 rear 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 X1-4 (RL+) - X1-3 (RL-) Ignition switch ON 11 to 14 V
for RH Tester Connection Condition Specified Condition X1-2 (RR+) - X1-1 (RR-) Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG