| Last Modified: 11-20-2023 | 6.11:8.1.0 | Doc ID: RM1000000014VNS |
| Model Year Start: 2018 | Model: Camry HV | Prod Date Range: [07/2017 - 09/2018] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C14B3; Reaction Force Pressure Sensor Zero Point Malfunction; 2018 MY Camry HV [07/2017 - 09/2018] | ||
|
DTC |
C14B3 |
Reaction Force Pressure Sensor Zero Point Malfunction |
DESCRIPTION
The reaction force pressure sensor detects and outputs the brake fluid pressure of the stroke simulator, which changes in accordance with brake pedal operation, to the skid control ECU (brake booster with master cylinder assembly).
|
DTC No. |
Detection Item |
INF Code |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|---|
|
C14B3 |
Reaction Force Pressure Sensor Zero Point Malfunction |
204 |
When the brake pedal is not depressed, the reaction force pressure sensor output value is -0.63 MPa (-6.4 kgf/cm2, -91.4 psi) or less or 1.53 MPa (15.6 kgf/cm2, 222 psi) or more for 3 seconds or more. |
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](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
CHECK BRAKE PEDAL |
(a) Check that the brake pedal and the brake pedal stroke sensor assembly are properly installed and that the pedal can be depressed normally.
(b) Check and adjust the brake pedal height.
Click here
(c) Adjust the brake pedal stroke sensor assembly.
Click here
|
|
2. |
READ VALUE USING TECHSTREAM (REACTION FORCE PRESSURE) |
(a) Select the Data List on the Techstream.
Chassis > ABS/VSC/TRAC > Data List
|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Reaction Force Pressure |
Pressure value of stroke simulator |
Min.: 0.00 MPa, Max.: 24.48 MPa |
Brake pedal released: 0.00 MPa |
Brake pedal is being depressed: Changes in proportion to the depression force of the brake pedal |
Chassis > ABS/VSC/TRAC > Data List
|
Tester Display |
|---|
|
Reaction Force Pressure |
(b) Check that the reaction force pressure sensor output value is within 0.00 to 1.53 MPa when the brake pedal is not depressed.
OK:
The reaction force pressure sensor output value is within 0.00 to 1.53 MPa.
HINT:
If the reaction force pressure sensor output value is within 0.00 to 1.53 MPa, the skid control ECU (brake booster with master cylinder assembly) automatically performs zero point calibration every time the power switch is turned on (IG).
Therefore, if the reaction force pressure sensor output value is not within 0.00 to 1.53 MPa, replace the skid control ECU (brake booster with master cylinder assembly) with a new one.
| NG |
|
|
|
3. |
RECONFIRM DTC |
(a) Clear the DTCs.
Chassis > ABS/VSC/TRAC > Clear DTCs
(b) Turn the power switch off.
(c) Turn the power switch on (IG).
(d) Check if the same DTC is output.
Chassis > ABS/VSC/TRAC > Trouble Codes
HINT:
Even if the DTC is cleared, it will immediately be output again if the reaction force pressure sensor zero point malfunction remains.
|
Result |
Proceed to |
|---|---|
|
DTC C14B3 is not output. |
A |
|
DTC C14B3 is output. |
B |
| A |
|
| B |
|
|
|