BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C1415,C1416; Rear Speed Sensor RH Circuit Output; 2018 MY Camry HV [07/2017

Last Modified: 11-20-2023	6.11:8.1.0	Doc ID: RM1000000014VN3
Model Year Start: 2018	Model: Camry HV	Prod Date Range: [07/2017 - 09/2018]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C1415,C1416; Rear Speed Sensor RH Circuit Output; 2018 MY Camry HV [07/2017 - 09/2018]

DTC

C1415

Rear Speed Sensor RH Circuit Output

DTC

C1416

Rear Speed Sensor LH Circuit Output

DESCRIPTION

Each speed sensor detects the wheel speed and sends the signals to the skid control ECU (brake booster with master cylinder assembly). These signals are used for ABS control.

HINT:

The output voltage values shown below are for when the vehicle wire harnesses are connected to the skid control ECU (brake booster with master cylinder assembly) and the speed sensors.

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

Note

C1415

Rear Speed Sensor RH Circuit Output

524

543

INF Code: 524
- An open in the sensor signal of a malfunctioning wheel occurs 255 times or more.
INF Code: 543
- Either of the following is detected:
  1. 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.
  2. At a vehicle speed of 10 km/h (6 mph) or more, noise occurs once per rotor rotation for 15 seconds or more.

Skid control sensor wire RH (NO. 1 parking brake wire assembly)
Rear speed sensor RH (rear axle hub and bearing assembly RH)
Speed sensor installed improperly
Wire harness or connector
Rear speed sensor rotor RH (rear axle hub and bearing assembly RH)
Skid control ECU (brake booster with master cylinder assembly)

ABS DTC

C1416

Rear Speed Sensor LH Circuit Output

534

544

INF Code: 534
- An open in the sensor signal of a malfunctioning wheel occurs 255 times or more.
INF Code: 544
- Either of the following is detected:
  1. 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.
  2. At a vehicle speed of 10 km/h (6 mph) or more, noise occurs once per rotor rotation for 15 seconds or more.

Skid control sensor wire LH (NO. 2 parking brake wire assembly)
Rear speed sensor LH (rear axle hub and bearing assembly LH)
Speed sensor installed improperly
Wire harness or connector
Rear speed sensor rotor LH (rear axle hub and bearing assembly LH)
Skid control ECU (brake booster with master cylinder assembly)

ABS DTC

DTC Detection Conditions: C1415 INF Code: 543

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	At a vehicle speed of 20 km/h (12 mph) or more.	○	-
Diagnosis Condition	At a vehicle speed of 10 km/h (6 mph) or more.	-	○
Malfunction Status	Noise occurs in the sensor signals of a malfunctioning wheel.	○	-
Malfunction Status	Noise occurs once per rotor rotation.	-	○
Detection Time		Detected 75 times or more within 5 seconds	15 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.

DTC Detection Conditions: C1416 INF Code: 544

		Vehicle Condition
		Pattern 1	Pattern 2
Diagnosis Condition	At a vehicle speed of 20 km/h (12 mph) or more.	○	-
Diagnosis Condition	At a vehicle speed of 10 km/h (6 mph) or more.	-	○
Malfunction Status	Noise occurs in the sensor signals of a malfunctioning wheel.	○	-
Malfunction Status	Noise occurs once per rotor rotation.	-	○
Detection Time		Detected 75 times or more within 5 seconds	15 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

CAUTION / NOTICE / HINT

NOTICE:

After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".

Click here

PROCEDURE

CHECK DTC

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the power switch off.

(d) Check if the same DTC is output.

Chassis > ABS/VSC/TRAC > Trouble Codes

Result	Proceed to
DTC C1415 is output.	A
DTC C1416 is output.	B

GO TO STEP 9

2.	READ VALUE USING TECHSTREAM (MOMENTARY INTERRUPTION)

(a) Using the Techstream, check for any momentary interruptions in the wire harness and connector corresponding to a DTC.

Chassis > ABS/VSC/TRAC > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

RR Speed Sensor Voltage Open

Rear speed sensor RH voltage open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

Chassis > ABS/VSC/TRAC > Data List

Tester Display
RR Speed Sensor Voltage Open

(b) Check for any momentary interruptions in the wire harness and connectors.

OK:

There are no momentary interruptions.

NOTICE:

Perform the above inspection before removing the sensor and connector.

GO TO STEP 5

3.	READ VALUE USING TECHSTREAM (REAR SPEED SENSOR RH)

(a) Select the Data List on the Techstream.

Chassis > ABS/VSC/TRAC > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
RR Wheel Speed	Rear speed sensor RH	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

Chassis > ABS/VSC/TRAC > Data List

Tester Display
RR Wheel Speed

(b) Check the rear speed sensor RH output value.

OK:

The output value changes in accordance with the vehicle speed.

GO TO STEP 5

4.	RECONFIRM DTC

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the power switch off.

(d) Perform a road test.

(e) Check if the same DTC is output.

Chassis > ABS/VSC/TRAC > Trouble Codes

Result	Proceed to
DTC C1415 is not output.	A
DTC C1415 is output.	B

USE SIMULATION METHOD TO CHECK

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

5.	CHECK REAR SPEED SENSOR RH INSTALLATION

(a) Turn the power switch off.

*1	Rear Speed Sensor RH
*a	OK
*b	NG
*c	No Clearance

(b) Check the rear speed sensor RH installation.

OK:

There is no clearance between the sensor and the rear axle hub.

HINT:

Because the rear axle hub and bearing assembly RH cannot be disassembled, if the rear speed sensor RH needs replacement, replace the rear axle hub and bearing assembly RH.

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

6.	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.

Front view of skid control sensor wire RH (NO. 1 parking brake wire assembly)

Front view of wire harness connector

(to Sensor Side Connector)

Front view of wire harness connector

(to Vehicle Side Connector)

(b) Remove the skid control sensor wire RH (NO. 1 parking brake wire assembly).

OK:

No deformation or corrosion.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
u2-2 (RA+) - uR1-1 (RR+)	Always	Below 1 Ω
u2-2 (RA+) - uR1-2 (RR-)	Always	10 kΩ or higher
u2-2 (RA+) or uR1-1 (RR+) - Body ground	Always	10 kΩ or higher
u2-1 (RA-) - uR1-2 (RR-)	Always	Below 1 Ω
u2-1 (RA-) - uR1-1 (RR+)	Always	10 kΩ or higher
u2-1 (RA-) or uR1-2 (RR-) - Body ground	Always	10 kΩ or higher

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY

7.	CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - NO. 1 PARKING BRAKE WIRE ASSEMBLY)

(a) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(b) Disconnect the A40 skid control ECU (brake booster with master cylinder assembly) connector.

OK:

No deformation or corrosion.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A40-7 (RR+) - uR1-1 (RR+)	Always	Below 1 Ω
A40-7 (RR+) or uR1-1 (RR+) - Body ground	Always	10 kΩ or higher
A40-8 (RR-) - uR1-2 (RR-)	Always	Below 1 Ω
A40-8 (RR-) or uR1-2 (RR-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.	INSPECT BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SENSOR OUTPUT)

(a) Reconnect the A40 skid control ECU (brake booster with master cylinder assembly) connector.

*a	Front view of wire harness connector (to Skid Control Sensor Wire RH (NO. 1 Parking Brake Wire Assembly))

(b) Turn the power switch on (IG).

Standard Voltage:

Tester Connection	Condition	Specified Condition
uR1-1 (RR+) - Body ground	Power switch on (IG)	8 to 14 V

NOTICE:

Check the rear speed sensor RH signal after replacement.

Click here

HINT:

The rear speed sensor RH and rear speed sensor rotor RH are incorporated into the rear axle hub and bearing assembly RH.

If the rear speed sensor RH and rear speed sensor rotor RH need to be replaced, replace the rear axle hub and bearing assembly RH.

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

9.	READ VALUE USING TECHSTREAM (MOMENTARY INTERRUPTION)

(a) Using the Techstream, check for any momentary interruptions in the wire harness and connector corresponding to a DTC.

Chassis > ABS/VSC/TRAC > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

RL Speed Sensor Voltage Open

Rear speed sensor LH voltage open detection

Error or Normal

Error: Momentary interruption

Normal: Normal

Chassis > ABS/VSC/TRAC > Data List

Tester Display
RL Speed Sensor Voltage Open

(b) Check for any momentary interruptions in the wire harness and connectors.

OK:

There are no momentary interruptions.

NOTICE:

Perform the above inspection before removing the sensor and connector.

GO TO STEP 12

10.	READ VALUE USING TECHSTREAM (REAR SPEED SENSOR LH)

(a) Select the Data List on the Techstream.

Chassis > ABS/VSC/TRAC > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
RL Wheel Speed	Rear speed sensor LH	Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

Chassis > ABS/VSC/TRAC > Data List

Tester Display
RL Wheel Speed

(b) Check the rear speed sensor LH output value.

OK:

The output value changes in accordance with the vehicle speed.

GO TO STEP 12

11.	RECONFIRM DTC

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the power switch off.

(d) Perform a road test.

(e) Check if the same DTC is output.

Chassis > ABS/VSC/TRAC > Trouble Codes

Result	Proceed to
DTC C1416 is not output.	A
DTC C1416 is output.	B

USE SIMULATION METHOD TO CHECK

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

12.	CHECK REAR SPEED SENSOR LH INSTALLATION

(a) Turn the power switch off.

*1	Rear Speed Sensor LH
*a	OK
*b	NG
*c	No Clearance

(b) Check the rear speed sensor LH installation.

OK:

There is no clearance between the sensor and the rear axle hub.

HINT:

Because the rear axle hub and bearing assembly LH cannot be disassembled, if the rear speed sensor LH needs replacement, replace the rear axle hub and bearing assembly LH.

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH

13.	INSPECT NO. 2 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.

Front view of skid control sensor wire LH (NO. 2 parking brake wire assembly)

Front view of wire harness connector

(to Sensor Side Connector)

Front view of wire harness connector

(to Vehicle Side Connector)

(b) Remove the skid control sensor wire LH (NO. 2 parking brake wire assembly).

OK:

No deformation or corrosion.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
v2-2 (LA+) - vR1-1 (RL+)	Always	Below 1 Ω
v2-2 (LA+) - vR1-2 (RL-)	Always	10 kΩ or higher
v2-2 (LA+) or vR1-1 (RL+) - Body ground	Always	10 kΩ or higher
v2-1 (LA-) - vR1-2 (RL-)	Always	Below 1 Ω
v2-1 (LA-) - vR1-1 (RL+)	Always	10 kΩ or higher
v2-1 (LA-) or vR1-2 (RL-) - Body ground	Always	10 kΩ or higher

REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY

14.	CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - NO. 2 PARKING BRAKE WIRE ASSEMBLY)

(a) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(b) Disconnect the A40 skid control ECU (brake booster with master cylinder assembly) connector.

OK:

No deformation or corrosion.

(d) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
A40-34 (RL+) - vR1-1 (RL+)	Always	Below 1 Ω
A40-34 (RL+) or vR1-1 (RL+) - Body ground	Always	10 kΩ or higher
A40-35 (RL-) - vR1-2 (RL-)	Always	Below 1 Ω
A40-35 (RL-) or vR1-2 (RL-) - Body ground	Always	10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

15.	INSPECT BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SENSOR OUTPUT)

(a) Reconnect the A40 skid control ECU (brake booster with master cylinder assembly) connector.

*a	Front view of wire harness connector (to Skid Control Sensor Wire LH (NO. 2 Parking Brake Wire Assembly))

(b) Turn the power switch on (IG).

Standard Voltage:

Tester Connection	Condition	Specified Condition
vR1-1 (RL+) - Body ground	Power switch on (IG)	8 to 14 V

NOTICE:

Check the rear speed sensor LH signal after replacement.

Click here

HINT:

The rear speed sensor LH and rear speed sensor rotor LH are incorporated into the rear axle hub and bearing assembly LH.

If the rear speed sensor LH and rear speed sensor rotor LH need to be replaced, replace the rear axle hub and bearing assembly LH.

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY