Toyota Camry (XV70): ABS Pump Motor Control Internal Electronic Failure (C052C49)
DESCRIPTION
The ABS motor relay and pump motor are built into the brake actuator assembly.
If the skid control ECU (brake actuator assembly) detects a malfunction in the drive circuit of the pump motor, this DTC is stored.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
C052C49 | ABS Pump Motor Control Internal Electronic Failure |
| Skid control ECU (brake actuator assembly) |
|
Vehicle Condition | |||
|---|---|---|---|
|
Pattern 1 | Pattern 2 | ||
|
Diagnosis Condition | The system has started. |
- | ○ |
|
Malfunction Status | The skid control ECU (brake actuator assembly) detects a malfunction in the pump motor circuit. |
○ | - |
|
A short to +B is detected during the ABS motor drive circuit self test. |
- | ○ | |
|
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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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
Brake System Control Module "A" System Internal Failure (C059704)
DESCRIPTION The skid control ECU (brake actuator assembly) stores this DTC if malfunctions are found in a circuit inside the ECU by self diagnosis.
DTC No. Detection Item
DTC Detection Co
ECM Communication (C124A00)
DESCRIPTION If the vehicle information stored by the skid control ECU (brake actuator assembly) does not match that sent from the ECM or a new skid control ECU (brake actuator assembly) is installed a
SEE MORE:
Installation
INSTALLATION PROCEDURE 1. TEMPORARILY INSTALL FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY
(a) Turn the crankshaft pulley until the flat of the camshaft faces the fuel pump lifter assembly.
HINT: This prevents the camshaft nose from pushing up the fuel pump lifter assembly when installing the fuel
Removal
REMOVAL PROCEDURE 1. PRECAUTION
NOTICE:
When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one. If a radio and display receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
A commun
