Toyota Corolla Cross: Electronic Brake Booster Motor "A" Position Sensor Signal Cross Coupled (C129A2B,...,C136A1C)
DESCRIPTION
When the motor rotation angle sensor inside the electric brake booster (brake booster with master cylinder assembly) meets the detection conditions, this DTC is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Note |
|---|---|---|---|---|---|---|
|
C129A2B |
Electronic Brake Booster Motor "A" Position Sensor Signal Cross Coupled |
Motor rotation angle sensor (brake booster with master cylinder assembly) detected outside of operating range. |
Electric brake booster (brake booster with master cylinder assembly) |
Comes on |
Brake Booster |
|
|
C129A84 |
Electronic Brake Booster Motor "A" Position Sensor Signal Below Allowable Range |
Motor rotation angle sensor (brake booster with master cylinder assembly) detected outside of operating range. |
Electric brake booster (brake booster with master cylinder assembly) |
Comes on |
Brake Booster |
|
|
C129A85 |
Electronic Brake Booster Motor "A" Position Sensor Signal Above Allowable Range |
Motor rotation angle sensor (brake booster with master cylinder assembly) detected outside of operating range. |
Electric brake booster (brake booster with master cylinder assembly) |
Comes on |
Brake Booster |
|
|
C135A1C |
Electronic Brake Booster Motor "A" Position Sensor Circuit "A" Circuit Voltage Out of Range |
|
Electric brake booster (brake booster with master cylinder assembly) |
Comes on |
Brake Booster |
|
|
C136A1C |
Electronic Brake Booster Motor "A" Position Sensor Circuit "B" Circuit Voltage Out of Range |
|
Electric brake booster (brake booster with master cylinder assembly) |
Comes on |
Brake Booster |
|
MONITOR DESCRIPTION
C129B (Case 1):- When the electronically controlled brake system is operating and the output value of the rotor position sensor is outside of a certain range, the electric brake booster (brake booster with master cylinder assembly) illuminates the MIL and stores this DTC.
- When the electronically controlled brake system is operating and the output value of the rotor position sensor is a certain value or more, the electric brake booster (brake booster with master cylinder assembly) illuminates the MIL and stores this DTC.
- When the electronically controlled brake system is operating and the output value of the rotor position sensor is a certain value or less, the electric brake booster (brake booster with master cylinder assembly) illuminates the MIL and stores this DTC.
- When the electronically controlled brake system is operating and the detected voltage value by the rotor position sensor is outside of a certain range, the electric brake booster (brake booster with master cylinder assembly) illuminates the MIL and stores this DTC.
MONITOR STRATEGY
|
Related DTCs |
C129B (Case 1): Motor rotation angle sensor rationality monitoring (vector length oscillating) C129B (Case 2): Motor rotation angle sensor rationality monitoring (vector-length-high) C129B (Case 3): Motor rotation angle sensor rationality monitoring (vector-length-low) C135B (Case 1): Motor rotation angle sensor range monitoring (sin-high) C135B (Case 2): Motor rotation angle sensor range monitoring (sin-low) C136B (Case 1): Motor rotation angle sensor range monitoring (cos-high) C136B (Case 2): Motor rotation angle sensor range monitoring (cos-low) |
|
Required Sensors/Components(Main) |
Electric brake booster (brake booster with master cylinder assembly) |
|
Required Sensors/Components(Related) |
Electric brake booster (brake booster with master cylinder assembly) |
|
Frequency of Operation |
Continuous |
|
Duration |
-: C135B (Case 1 and 2) and C136B (Case 1 and 2) 0.01 seconds: C129B (Case 2 and 3) 0.015 seconds: C129B (Case 1) |
|
MIL Operation |
2 driving cycles |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
TMC's intellectual property |
|
Other conditions belong to TMC's intellectual property |
- |
TYPICAL MALFUNCTION THRESHOLDS
|
TMC's intellectual property |
- |
COMPONENT OPERATING RANGE
|
TMC's intellectual property |
- |
CONFIRMATION DRIVING PATTERN
NOTICE:
When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.
HINT:
- After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off.
- Turn the ignition switch to ON (READY) and turn the GTS on.
- Wait for 1 second or more. [*]
HINT:
[*]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Enter the following menus: Chassis / Brake Booster / Utility / All Readiness.
- Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform driving pattern again.
PROCEDURE
|
1. |
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY |
Click here .gif)
| NEXT | .gif)
|
END |
READ NEXT:
Electronic Brake Booster System Mechanical Linkage Failure (C129F79)
DESCRIPTION
When the electric brake booster (brake booster with master cylinder
assembly) detects an abnormality with regard to system information that has already
been memorized, this DTC is sto
Left Front Wheel ABS Hold Solenoid Control Circuit Short to Battery (C12A512,...,C12B049)
DESCRIPTION
The ABS solenoid relay and solenoid valves are built into the
brake actuator assembly.
The front solenoid valve LH controls the brake fluid pressure
of the front wheel cylinder LH of
Electronic Brake Booster Motor "A" (C12B400,C12B41C,C12B41E,C12B477,C12B496,C12B579)
DESCRIPTION
The motor actuator is built into the brake booster with master
cylinder assembly.
The electric brake booster (brake booster with master cylinder
assembly) drives the motor in accorda
SEE MORE:
Installation
INSTALLATION
CAUTION / NOTICE / HINT
COMPONENTS (INSTALLATION)
Procedure
Part Name Code
1
TIRE PRESSURE WARNING VALVE AND TRANSMITTER
42607
-
-
2
Parts Location
PARTS LOCATION ILLUSTRATION
*A for Gasoline Model
- -
*1 BRAKE ACTUATOR ASSEMBLY - SKID CONTROL ECU
*2 ECM ILLUSTRATION
*A for 4.2 Inch Display Type
*B for 7 Inch Display Type
*C for HEV Model
- -
*1 COMBINATION
