| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM10000000214PA |
| Model Year Start: 2022 | Model: RAV4 | Prod Date Range: [12/2021 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C05121F; Right Rear Wheel Speed Sensor Circuit Intermittent; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ] | ||
|
DTC |
C05121F |
Right Rear Wheel Speed Sensor Circuit Intermittent |
DESCRIPTION
Refer to DTC C051212.
Click here
![2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C051212; Right Rear Wheel Speed Sensor Circuit Short to Battery](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Note |
|---|---|---|---|---|---|
|
C05121F |
Right Rear Wheel Speed Sensor Circuit Intermittent |
Any of the following is detected:
|
|
Comes on |
|
C05121F DTC Detection Conditions
|
Vehicle Condition |
||||
|---|---|---|---|---|
|
Pattern 1 |
Pattern 2 |
Pattern 3 |
||
|
Diagnosis Condition |
When the +BS terminal voltage is 17.4 V or less |
○ |
○ |
○ |
|
Malfunction Status |
An open in the sensor signal circuit of a malfunctioning area occurs 255 times or more |
○ |
- |
- |
|
At a vehicle speed of 20 km/h (12 mph) or more, noise occurs in the sensor signals of a malfunctioning wheel 75 times or more within 5 seconds |
- |
○ |
- |
|
|
At a vehicle speed of 10 km/h (6 mph) or more, noise occurs once per rotor rotation |
- |
- |
○ |
|
|
Detection Time |
- |
- |
15 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.
MONITOR DESCRIPTION
The No. 2 skid control ECU (brake actuator assembly) monitors the output value of the speed sensors. When the vehicle is being driven and a sudden irregular change in acceleration due to iron particles being attached to the speed sensor is detected repeatedly, or periodic sudden changes in acceleration due to iron particles being attached to the speed sensor rotor is detected, the No. 2 skid control ECU (brake actuator assembly) judges that speed sensor noise is occurring and illuminates the MIL and stores this DTC.
Also, when the vehicle is being driven and the output value of the speed sensor is momentarily interrupted repeatedly, the No. 2 skid control ECU (brake actuator assembly) judges that there is a momentary interruption in the speed sensor circuit and illuminates the MIL and stores this DTC.
MONITOR STRATEGY
|
Related DTCs |
C0516: Wheel speed sensor (RR) intermittent/erratic |
|
Required Sensors/Components(Main) |
Speed sensor Speed sensor rotor |
|
Required Sensors/Components(Related) |
- |
|
Frequency of Operation |
Continuous |
|
Duration |
- |
|
MIL Operation |
Immediately |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
C0513: Wheel speed sensor (RR) range/performance C0514: Wheel speed sensor (RR) voltage circuit open C0515: Wheel speed sensor (RR) voltage circuit high C137D: Brake system voltage input out of range high C14EA: Wheel speed sensor (RR) voltage circuit low |
|
Chassis dynamometer mode |
Off |
TYPICAL MALFUNCTION THRESHOLDS
|
Both of the following conditions are met |
A and B |
|
A. +BS voltage |
17.4 V or more |
|
B. Either of the following conditions is met |
- |
|
Wheel speed sensor noise |
Exist |
|
Wheel speed sensor a piece of metal rotor noise |
Exist |
COMPONENT OPERATING RANGE
|
All of the following conditions is met |
- |
|
Chassis dynamometer mode |
Off |
|
Wheel speed sensor fail (C0502, C0503, C14E1, C0508, C0509, C14E4, C050E, C050F, C14E7, C0514, C0515, C14EA) |
Not detected |
|
Wheel speed sensor pass flag |
On |
CONFIRMATION DRIVING PATTERN
NOTICE:
When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.
HINT:
- After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off.
- Turn the ignition switch to ON (READY) and turn the GTS on.
-
Drive the vehicle straight at a speed of 20 km/h (12 mph) or more for 15 seconds or more. [*]
HINT:
[*]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Enter the following menus: Chassis / Brake/EPB / Utility / All Readiness.
-
Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.
CAUTION / NOTICE / HINT
NOTICE:
-
After replacing or removing and installing a skid control sensor, perform Dealer Mode (Signal Check) inspection to confirm that the skid control sensors are operating correctly.
Click here
-
After replacing or removing and installing a speed sensor rotor, perform Dealer Mode (Signal Check) inspection to confirm that the skid control sensors are operating correctly.
Click here
PROCEDURE
|
1. |
READ VALUE USING GTS (RR WHEEL SPEED AND MOMENTARY INTERRUPTION) |
(a) While monitoring the values of the Data List, perform a road test and attempt to reproduce the problem symptoms based on the interview with the customer and the vehicle conditions stored as Freeze Frame Data when the DTC was stored.
Click here
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
RR Wheel Speed |
Rear wheel speed sensor RH reading |
Min.: 0.0 km/h (0 mph) Max.: 6553.5 km/h (4072 mph) |
Vehicle stopped: 0.0 km/h (0 mph) |
When driving at constant speed: No large fluctuations |
|
RR Speed Open |
Momentary interruption of rear skid control sensor RH pulse input to ECU |
Normal / Under intermittent |
Normal: Normal Under intermittent: Momentary interruption |
- |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
RR Wheel Speed |
|
RR Speed Open |
OK:
The values change in accordance with the operation of the vehicle and there is no intermittent operation.
NOTICE:
Perform the above inspection before removing the sensor and connector.
| OK |
|
|
|
2. |
CHECK REAR SKID CONTROL SENSOR RH INSTALLATION |
|
(a) Turn the ignition switch off. |
|
(b) Check the rear skid control sensor RH installation.
OK:
There is no clearance between the rear skid control sensor RH and the rear axle carrier RH.
| NG |
|
|
|
3. |
CHECK REAR SKID CONTROL SENSOR RH (CHECK FOR FOREIGN MATTER) |
(a) Remove the rear skid control sensor RH, and confirm that there is no foreign matter, oil or grease on the rear skid control sensor tip RH.
OK:
The rear skid control sensor tip RH is free of oil and foreign matter.
HINT:
If foreign matter of 1 mm (0.03937 in.) x 1 mm (0.03937 in.) or more is adhered to the rear skid control sensor RH, this DTC may be stored.
| NG |
|
|
|
4. |
CHECK REAR SPEED SENSOR ROTOR RH (CHECK FOR FOREIGN MATTER) |
(a) Confirm that there is no foreign matter, oil or grease on the rear speed sensor rotor RH.
OK:
The rear speed sensor rotor RH is free of oil and foreign matter.
HINT:
- If foreign matter of 1 mm (0.03937 in.) x 1 mm (0.03937 in.) or more is adhered to the rear speed sensor rotor RH, this DTC may be stored.
-
The rear speed sensor rotor RH is incorporated into the rear axle hub and bearing assembly RH.
If the rear speed sensor rotor RH needs to be replaced, replace it together with the rear axle hub and bearing assembly RH.
| OK |
|
REPLACE REAR SKID CONTROL SENSOR RH AND COMPONENT WITH REAR SPEED SENSOR ROTOR RH for Rear Skid Control Sensor RH: Click here
for Rear Speed Sensor Rotor RH: Click here
|
|
|
5. |
CLEAN REAR SPEED SENSOR ROTOR RH |
(a) Clean the rear speed sensor rotor RH.
NOTICE:
Do not use parts cleaner when cleaning the rear speed sensor rotor RH.
|
|
6. |
READ VALUE USING GTS (RR WHEEL SPEED AND MOMENTARY INTERRUPTION) |
(a) While monitoring the values of the Data List, perform a road test and attempt to reproduce the problem symptoms based on the interview with the customer and the vehicle conditions stored as Freeze Frame Data when the DTC was stored.
Click here
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
RR Wheel Speed |
Rear wheel speed sensor RH reading |
Min.: 0.0 km/h (0 mph) Max.: 6553.5 km/h (4072 mph) |
Vehicle stopped: 0.0 km/h (0 mph) |
When driving at constant speed: No large fluctuations |
|
RR Speed Open |
Momentary interruption of rear skid control sensor RH pulse input to ECU |
Normal / Under intermittent |
Normal: Normal Under intermittent: Momentary interruption |
- |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
RR Wheel Speed |
|
RR Speed Open |
OK:
The values change in accordance with the operation of the vehicle and there is no intermittent operation.
NOTICE:
Perform the above inspection before removing the sensor and connector.
HINT:
The rear speed sensor rotor RH is incorporated into the rear axle hub and bearing assembly RH.
If the rear speed sensor rotor RH needs to be replaced, replace it together with the rear axle hub and bearing assembly RH.
| OK |
|
END |
| NG |
|
REPLACE REAR SKID CONTROL SENSOR RH AND COMPONENT WITH REAR SPEED SENSOR ROTOR RH for Rear Skid Control Sensor RH: Click here
for Rear Speed Sensor Rotor RH: Click here
|
|
7. |
CLEAN REAR SKID CONTROL SENSOR RH |
(a) Clean the rear skid control sensor RH.
NOTICE:
When cleaning the rear skid control sensor RH, make sure to clean the installation hole before installation.
|
|
8. |
READ VALUE USING GTS (RR WHEEL SPEED AND MOMENTARY INTERRUPTION) |
(a) While monitoring the values of the Data List, perform a road test and attempt to reproduce the problem symptoms based on the interview with the customer and the vehicle conditions stored as Freeze Frame Data when the DTC was stored.
Click here
Chassis > Brake/EPB > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
RR Wheel Speed |
Rear wheel speed sensor RH reading |
Min.: 0.0 km/h (0 mph) Max.: 6553.5 km/h (4072 mph) |
Vehicle stopped: 0.0 km/h (0 mph) |
When driving at constant speed: No large fluctuations |
|
RR Speed Open |
Momentary interruption of rear skid control sensor RH pulse input to ECU |
Normal / Under intermittent |
Normal: Normal Under intermittent: Momentary interruption |
- |
Chassis > Brake/EPB > Data List
|
Tester Display |
|---|
|
RR Wheel Speed |
|
RR Speed Open |
OK:
The values change in accordance with the operation of the vehicle and there is no intermittent operation.
NOTICE:
Perform the above inspection before removing the sensor and connector.
| OK |
|
END |
| NG |
|
|
|