BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C14B0,...,C14D4; Reaction Force Pressure Sensor Power Supply Voltage Malfunction; 2018 MY Camry HV [07/2017

DESCRIPTION

If the skid control ECU (brake booster with master cylinder assembly) detects an internal sensor (reaction force pressure sensor, accumulator pressure sensor or servo pressure sensor) malfunction during self-diagnosis, DTCs are stored.

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

Note

C14B0

Reaction Force Pressure Sensor Power Supply Voltage Malfunction

201

The supplied voltage to the sensor is less than 6.3 V or 7.7 V or more for 0.05 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14B1

Reaction Force Pressure Sensor Communication Malfunction

202

Communication with the sensor is invalid for 0.05 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14B2

Reaction Force Pressure Sensor Internal Malfunction

203

A malfunction is detected by self-diagnosis function of the sensor.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14B4

Reaction Force Pressure Sensor Output Malfunction

207

Fluctuation of the sensor signal exceeds the threshold (7.5 MPa (76.5 kgf/cm², 1088 psi) or more from the previous value) for 0.1 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14B5

Reaction Force Pressure Sensor Data Invalid

208

Data from the sensor is invalid for 0.2 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14C0

Servo Pressure Sensor Power Supply Voltage Malfunction

421

The supplied voltage to the sensor is less than 6.3 V or 7.7 V or more for 0.05 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14C1

Servo Pressure Sensor Communication Malfunction

422

Communication with the sensor is invalid for 0.05 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14C2

Servo Pressure Sensor Internal Malfunction

423

A malfunction is detected by self-diagnosis function of the sensor.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14C4

Servo Pressure Sensor Output Malfunction

426

Fluctuation of the sensor signal exceeds the threshold (7.5 MPa (76.5 kgf/cm², 1088 psi) or more from the previous value) for 0.1 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14C5

Servo Pressure Sensor Data Invalid

427

Data from the sensor is invalid for 0.2 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14D0

Accumulator Pressure Sensor Power Supply Voltage Malfunction

331

The supplied voltage to the sensor is less than 6.3 V or 7.7 V or more for 0.05 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14D1

Accumulator Pressure Sensor Communication Malfunction

332

Communication with the sensor is invalid for 0.2 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14D2

Accumulator Pressure Sensor Internal Malfunction

335

A malfunction is detected by self-diagnosis function of the sensor.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14D3

Accumulator Pressure Sensor Output Malfunction

333

Fluctuation of the sensor signal exceeds the threshold (7.5 MPa (76.5 kgf/cm², 1088 psi) or more from the previous value) for 0.1 seconds or more.

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

C14D4

Accumulator Pressure Sensor Data Invalid

336

337

INF Code: 336
- Data from the sensor is invalid for 0.8 seconds or more.
INF Code: 337
- ECU internal malfunction.
  (A sensor malfunction is detected by the internal IC.)

Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

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

2018 MY Camry HV [07/2017 - 09/2018]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: INITIALIZATION

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

DTCs C14B0, C14B1, C14B2, C14B4, C14B5, C14C0, C14C1, C14C2, C14C4, C14C5, C14D0, C14D1, C14D2, C14D3 and/or C14D4 are output.

DTCs C14B0, C14B1, C14B2, C14B4, C14B5, C14C0, C14C1, C14C2, C14C4, C14C5, C14D0, C14D1, C14D2, C14D3 and C14D4 are not output.