Lexus ES: Left Rear Wheel Speed Sensor Circuit Intermittent (C050C1F)
DESCRIPTION
Refer to DTC C050C12
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| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C050C1F | Left Rear Wheel Speed Sensor Circuit Intermittent |
|
|
- *1: The stop light switch assembly is OFF.
- *2: The stop light switch assembly is ON.
| Vehicle Condition | |||||
|---|---|---|---|---|---|
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | ||
| Diagnosis Condition | The Stop light switch assembly is OFF. | - | ○ | ○ | ○ |
| Malfunction Status | The speed sensor signal is excessively noisy. | ○ | - | - | - |
| The calculated change in wheel speed is more than 980 m/s2. | - | ○ | - | - | |
| The calculated change in wheel speed fluctuates between more than 500 m/s2 and less than -500 m/s2. | - | - | ○ | - | |
| The vehicle speed is low, excessive noise in the speed sensor pulse signal is detected 3 times or more within 0.005 seconds. | - | - | - | ○ | |
| Detection Time | - | 5 seconds or more. | 5 seconds or more. | 5 seconds or more. | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
DTC Detection Conditions: C050C1F| Vehicle Condition | ||||
|---|---|---|---|---|
| Pattern 5 | Pattern 6 | Pattern 7 | ||
| Diagnosis Condition | The stop light switch assembly is ON. | ○ | ○ | ○ |
| Malfunction Status | The calculated change in wheel speed is more than 980 m/s2. | ○ | - | - |
| The calculated change in wheel speed fluctuates between more than 500 m/s2 and less than -500 m/s2. | - | ○ | - | |
| The vehicle speed is low, excessive noise in the speed sensor pulse signal is detected 3 times or more within 0.005 seconds. | - | - | ○ | |
| Detection Time | 20 seconds or more. | 20 seconds or more. | 20 seconds or more. | |
| Number of Trips | 1 trip | 1 trip | 1 trip | |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
CAUTION / NOTICE / HINT
NOTICE:
-
After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
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-
After replacing or removing and installing a speed sensor rotor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
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-
DTC precaution
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Procedure to clear warning lights (When not clearing DTCs) Procedure
- Repair or replacement.
- Turn the engine switch on (IG).
- Drive the vehicle at 54 km/h (34 mph) or more for 3 seconds or more to clear the warning lights.
PROCEDURE
| 1. | REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH |
(a) Replace the rear axle hub and bearing assembly LH.
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| NEXT |  | END |
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the sliding roof system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the problem sympto
