Toyota Camry owners & service manuals

Toyota Camry (XV70): Right Rear Wheel Speed Sensor Circuit Intermittent (C05121F)

DESCRIPTION

Refer to DTC C051212

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DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C05121F

Right Rear Wheel Speed Sensor Circuit Intermittent

  • The speed sensor signal is excessively noisy.
  • The calculated change in wheel speed is more than 980 m/s2 for 5*1 or 20*2 seconds or more.
  • The calculated change in wheel speed fluctuates between more than 500 m/s2 and less than -500 m/s2 for 5*1 or 20*2 seconds or more.
  • When the vehicle speed is low, excessive noise in the speed sensor pulse signal is detected 3 times or more within 0.005 seconds for 5*1 or 20*2 seconds or more.
  • Rear speed sensor RH (rear axle hub and bearing assembly RH)
  • Rear speed sensor rotor RH (rear axle hub and bearing assembly RH)
  • *1: The stop light switch assembly is OFF.
  • *2: The stop light switch assembly is ON.
DTC Detection Conditions: C05121F
 

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: C05121F
 

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

    1. Repair or replacement.
    2. Turn the ignition switch to ON.
    3. 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 RH

(a) Replace the rear axle hub and bearing assembly RH.

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NEXT

END

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