Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001D2M5 |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 09/2022] |
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C051214; Right Rear Wheel Speed Sensor Circuit Short to Ground or Open; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022] |
DTC
|
C051214
|
Right Rear Wheel Speed Sensor Circuit Short to Ground or Open
|
DESCRIPTION
Refer to DTC C051212
Click here
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
C051214
|
Right 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 RH (rear axle hub and bearing assembly RH)
-
Wire harness or connector
-
Skid control sensor wire RH (No. 1 parking brake wire assembly)
-
Skid control ECU (brake actuator assembly)
|
DTC Detection Conditions: C051214
|
Vehicle Condition
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Pattern 1
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Pattern 2
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Diagnosis Condition
|
-
|
-
|
-
|
Malfunction Status
|
An open circuit is detected in the speed sensor signal circuit.
|
○
|
-
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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
Refer to DTC C051212.
Click here
CAUTION / NOTICE / HINT
NOTICE:
-
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
Click here
-
After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
Click here
PROCEDURE
1.
|
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.
|
|
*a
|
Front view of skid control sensor wire RH (No. 1 parking brake wire assembly)
(to Rear Speed Sensor RH (Rear Axle Hub and Bearing Assembly RH))
|
|
|
(b) Disconnect the o2 rear speed sensor RH (rear axle hub and bearing assembly RH) 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
|
o2-2 (RR+) - o2-1 (RR-)
|
Engine switch on (IG)
|
11 to 14 V
|
OK
|
|
|
2.
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INSPECT NO. 1 PARKING BRAKE WIRE ASSEMBLY
|
(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.
|
|
*a
|
Front view of skid control sensor wire RH (No. 1 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)
|
|
|
(b) Disconnect the o2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
(c) Disconnect the oO2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
o2-1 (RR-) or oO2-2 (RR-) - Body ground and other terminals
|
Always
|
10 kΩ or higher
|
NG |
|
REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY
|
OK
|
|
|
3.
|
CHECK HARNESS AND CONNECTOR (NO. 1 PARKING BRAKE WIRE ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
|
(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 A51 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the oO2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
oO2-2 (RR-) or A51-37 (RR-) - Body ground
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
4.
|
INSPECT NO. 1 PARKING BRAKE WIRE ASSEMBLY
|
(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.
|
|
*a
|
Front view of skid control sensor wire RH (No. 1 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)
|
|
|
(b) Disconnect the o2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
(c) Disconnect the oO2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
o2-1 (RR-) - oO2-2 (RR-)
|
Always
|
Below 1 Ω
|
NG |
|
REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY
|
OK
|
|
|
5.
|
CHECK HARNESS AND CONNECTOR (NO. 1 PARKING BRAKE WIRE ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
|
(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 A51 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the oO2 skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
oO2-2 (RR-) - A51-37 (RR-)
|
Always
|
Below 1 Ω
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|