DESCRIPTION |
DTC No. | Detection Item |
INF Code | DTC Detection Condition |
Trouble Area | MIL |
Note | | C1428 |
Motor Circuit | 611
1160 |
- INF Code: 611
- An open or short in the ABS motor circuit is detected for 2 seconds or more.
- INF Code: 1160
- The ABS motor voltage is 18.5 V or more for 0.2 seconds or more.
| Brake actuator assembly |
Comes on |
- INF Code 611: SAE Code C052B
- INF Code 1160: SAE Code C052D (Case 2)
- ABS DTC
| MONITOR DESCRIPTION
The
skid control ECU (brake booster with master cylinder assembly) monitors
the voltage of the ABS motor. When the ABS motor relay is instructed to
be off and the voltage of the ABS motor is at a value that is not
possible when normal, the skid control ECU (brake booster with master
cylinder assembly) judges that the circuit of the ABS motor is
malfunctioning and illuminates the MIL and stores a DTC. MONITOR STRATEGY |
Related DTCs | C052B: ABS pump motor range/performance
C052D (Case 2): ABS pump motor circuit high | |
Required Sensors/Components(Main) | Brake actuator assembly | |
Required Sensors/Components(Related) | Skid control ECU (brake booster with master cylinder assembly) | |
Frequency of Operation | Continuous | |
Duration | 0.2 seconds: C052D (Case 2) 2 seconds: C052B | |
MIL Operation | Immediately | |
Sequence of Operation | None | TYPICAL ENABLING CONDITIONS All |
Monitor runs whenever the following DTCs are not stored |
None | C052B |
Command to ABS motor relay | Off | TYPICAL MALFUNCTION THRESHOLDS C052B |
ABS pump motor voltage | Higher than 1.448 V, and less than 7.607 V | C052D (Case 2) |
ABS pump motor voltage | 18.57 V or more | COMPONENT OPERATING RANGE C052B |
Both of the following conditions are met |
- | | Command to ABS motor relay |
Off | | ABS pump motor voltage |
1.448 V or less, or 7.607 V or more | C052D (Case 2) |
ABS pump motor voltage | Less than 18.57 V | CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Wait 2 seconds.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
- Read the DTCs.
HINT:
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- If the judgment result is INCOMPLETE or N/A and no pending DTCs are
output, perform a universal trip and check for permanent DTCs.
Click here 
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTCs are output, the system is normal.
WIRING DIAGRAM Refer to DTC C1427. Click here
CAUTION / NOTICE / HINT
NOTICE: After
replacing the brake actuator 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
PROCEDURE
| 1. |
CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - BRAKE ACTUATOR ASSEMBLY) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK: The connector is securely connected. (b) Disconnect the A35 skid control ECU (brake booster with master cylinder assembly) connector.
(c) Disconnect the A39 brake actuator assembly connector. (d) Check both the connector case and the terminals for deformation and corrosion.
OK: No deformation or corrosion. (e) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
A35-40 (+BM) - A39-10 (+BM) |
Always | Below 1 Ω | |
A35-40 (+BM) or A39-10 (+BM) - Body ground |
Always | 10 kΩ or higher |
| NG |
 | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK |
 | |
| 2. |
CHECK HARNESS AND CONNECTOR (GND TERMINAL) |
| (a) Measure the resistance according to the value(s) in the table below.
Standard Resistance: |
Tester Connection | Condition |
Specified Condition | |
A39-1 (MGND) - Body ground |
Always | Below 1 Ω | |
 |
|
*a | Front view of wire harness connector
(to Brake Actuator Assembly) | | |
| OK |
| REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT) | | 
