DESCRIPTION
Refer to DTC C050C1F.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
C050C12 | Left Rear Wheel Speed Sensor Circuit Short to Battery | The speed sensor short signal is ON continuously for 0.5 seconds or more. |
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WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | CHECK VEHICLE SPECIFICATION |
(a) Check the vehicle specification.
Result | Proceed to |
---|---|
w/o AVS (for AWD) | A |
w/o AVS (for 2WD) | B |
w/ AVS (for AWD) | C |
w/ AVS (for 2WD) | D |
B | GO TO STEP 5 |
C | GO TO STEP 9 |
D | GO TO STEP 13 |
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2. | 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 T1 rear speed sensor LH connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the engine switch on (IG).
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
T1-3 (RL+) - T1-1 (RL-) | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE REAR SPEED SENSOR LH |
|
3. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the A41 skid control ECU (brake actuator assembly) 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 |
---|---|---|
T1-1 (RL-) - Body ground | Always | Below 1.5 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. | CHECK HARNESS AND CONNECTOR (REAR SPEED SENSOR LH - BRAKE ACTUATOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
T1-3 (RL+) or A41-5 (RL+) - T1-1 (RL-) or A41-4 (RL-) | Always | 10 kΩ or higher |
OK | REPLACE BRAKE ACTUATOR ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
5. | 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 j2 rear speed sensor LH (rear axle hub and bearing assembly LH) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the engine switch on (IG).
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
j2-2 (RL+) - j2-1 (RL-) | Engine switch on (IG) | 11 to 14 V |
HINT:
The rear speed sensor LH is incorporated into the rear axle hub and bearing assembly LH.
If the rear speed sensor LH needs to be replaced, replace the rear axle hub and bearing assembly LH.
OK | REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH |
|
6. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the Tj2 rear skid control sensor wire LH No. 1 connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Turn the engine switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
Tj2-3 (RL+) - Tj2-1 (RL-) | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE REAR SKID CONTROL SENSOR WIRE LH NO. 1 |
|
7. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the A41 skid control ECU (brake actuator assembly) 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 |
---|---|---|
Tj2-1 (RL-) - Body ground | Always | Below 1.5 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
8. | CHECK HARNESS AND CONNECTOR (REAR SKID CONTROL SENSOR WIRE LH NO. 1 - BRAKE ACTUATOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
Tj2-3 (RL+) or A41-5 (RL+) - Tj2-1 (RL-) or A41-4 (RL-) | Always | 10 kΩ or higher |
OK | REPLACE BRAKE ACTUATOR ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
9. | 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 z23 rear speed sensor LH connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the engine switch on (IG).
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
z23-1 (RL+) - z23-3 (RL-) | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE REAR SPEED SENSOR LH |
|
10. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the T8 rear skid control sensor wire LH NO. 2 connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Turn the engine switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
T8-3 (RL+) - T8-1 (RL-) | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE REAR SKID CONTROL SENSOR WIRE LH NO. 2 |
|
11. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the A41 skid control ECU (brake actuator assembly) 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 |
---|---|---|
T8-1 (RL-) - Body ground | Always | Below 1.5 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
12. | CHECK HARNESS AND CONNECTOR (REAR SKID CONTROL SENSOR WIRE LH NO. 2 - BRAKE ACTUATOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
T8-3 (RL+) or A41-5 (RL+) - T8-1 (RL-) or A41-4 (RL-) | Always | 10 kΩ or higher |
OK | REPLACE BRAKE ACTUATOR ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
13. | 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 j2 rear speed sensor LH (rear axle hub and bearing assembly LH) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the engine switch on (IG).
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
j2-2 (RL+) - j2-1 (RL-) | Engine switch on (IG) | 11 to 14 V |
HINT:
The rear speed sensor LH is incorporated into the rear axle hub and bearing assembly LH.
If the rear speed sensor LH needs to be replaced, replace the rear axle hub and bearing assembly LH.
OK | REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH |
|
14. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the j6 rear skid control sensor wire LH No. 1 connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Turn the engine switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
j6-1 (RL+) - j6-3 (RL-) | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE REAR SKID CONTROL SENSOR WIRE LH NO. 1 |
|
15. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the T8 rear skid control sensor wire LH No. 2 connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Turn the engine switch on (IG).
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
T8-3 (RL+) - T8-1 (RL-) | Engine switch on (IG) | 11 to 14 V |
OK | REPLACE REAR SKID CONTROL SENSOR WIRE LH NO. 2 |
|
16. | CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT) |
(a) Turn the engine switch off. |
|
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the A41 skid control ECU (brake actuator assembly) 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 |
---|---|---|
T8-1 (RL-) - Body ground | Always | Below 1.5 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
17. | CHECK HARNESS AND CONNECTOR (REAR SKID CONTROL SENSOR WIRE LH NO. 2 - BRAKE ACTUATOR ASSEMBLY) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
T8-3 (RL+) or A41-5 (RL+) - T8-1 (RL-) or A41-4 (RL-) | Always | 10 kΩ or higher |
OK | REPLACE BRAKE ACTUATOR ASSEMBLY |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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