Toyota Camry (XV70): Brake Pressure Sensor "A" Circuit Voltage Out of Range (C05401C,C054028,C054049)
DESCRIPTION
The master cylinder pressure sensor is connected to the skid control ECU in the brake actuator assembly.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
C05401C | Brake Pressure Sensor "A" Circuit Voltage Out of Range |
The voltage of the master cylinder pressure sensor signal is less than 0.129 V or more than 3.29 V for 0.1 seconds or more. |
Skid control ECU (brake actuator assembly) |
|
C054028 | Brake Pressure Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure |
When the stop light switch assembly is off, the zero point of the master cylinder pressure sensor is less than -1.5 MPa (-15.3 kgf/cm2, -218 psi) or more than 1.5 MPa (15.3 kgf/cm2, 218 psi). |
Skid control ECU (brake actuator assembly) |
|
C054049 | Brake Pressure Sensor "A" Internal Electronic Failure |
An internal malfunction of the master cylinder pressure sensor is detected during the self test. |
Skid control ECU (brake actuator assembly) |
|
Vehicle Condition | |||
|---|---|---|---|
|
Pattern 1 | Pattern 2 | ||
|
Diagnosis Condition | - |
- | - |
|
Malfunction Status | The voltage of the master cylinder pressure sensor signal is less than 0.129 V. |
○ | - |
|
The voltage of the master cylinder pressure sensor signal is more than 3.29 V. |
- | ○ | |
|
Detection Time | 0.1 seconds or more. |
0.1 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: C054028|
Vehicle Condition | |||
|---|---|---|---|
|
Pattern 1 | Pattern 2 | ||
|
Diagnosis Condition | The stop light switch assembly is off. |
○ | ○ |
|
Malfunction Status | The zero point of the master cylinder pressure sensor is less than -1.5 MPa (-15.3 kgf/cm2, -218 psi). |
○ | - |
|
The zero point of the master cylinder pressure sensor is more than 1.5 MPa (15.3 kgf/cm2, 218 psi). |
- | ○ | |
|
Detection Time | - |
- | |
|
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.
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and system information memorization.
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PROCEDURE
| 1. |
REPLACE BRAKE ACTUATOR ASSEMBLY |
(a) Replace the skid control ECU (brake actuator assembly).
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Data List / Active Test
DATA LIST / ACTIVE TEST READ DATA LIST HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may
