BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model (NR Series)) C050C14 Left 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 LH (rear axle hub and bearing assembly LH) ·
Wire harness or connector ·
Skid control sensor wire LH (No. 2 parking brake wire assembly) ·
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.
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
| *a | Front view of skid control sensor wire LH (No. 2 parking brake wire assembly)
(to Rear Speed Sensor LH (Rear Axle Hub and Bearing Assembly LH)) |
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 n2 rear speed sensor LH (rear axle hub and bearing assembly LH) 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:
Tester Connection Condition Specified Condition n2-2 (RL+) - n2-1 (RL-) Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of skid control sensor wire LH (No. 2 parking brake wire assembly) |
| *b | Front view of wire harness connector
(to Sensor Side Connector) |
| *c | Front view of wire harness connector
(to Vehicle Side Connector) |
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 n2 skid control sensor wire LH (No. 2 parking brake wire assembly) connector.
Disconnect the nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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:
Tester Connection Condition Specified Condition n2-1 (RL-) or nO2-2 (RL-) - Body ground and other terminals Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
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 A51 skid control ECU (brake actuator assembly) connector.
Disconnect the nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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:
Tester Connection Condition Specified Condition nO2-2 (RL-) or A51-23 (RL-) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of skid control sensor wire LH (No. 2 parking brake wire assembly) |
| *b | Front view of wire harness connector
(to Sensor Side Connector) |
| *c | Front view of wire harness connector
(to Vehicle Side Connector) |
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 n2 skid control sensor wire LH (No. 2 parking brake wire assembly) connector.
Disconnect the nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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:
Tester Connection Condition Specified Condition n2-1 (RL-) - nO2-2 (RL-) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
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 A51 skid control ECU (brake actuator assembly) connector.
Disconnect the nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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:
Tester Connection Condition Specified Condition nO2-2 (RL-) - A51-23 (RL-) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG