Lexus ES: Right Electric Parking Brake Actuator Control Circuit Short to Battery (C061012)
DESCRIPTION
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | Note |
|---|---|---|---|---|---|
| C061012 | Right Electric Parking Brake Actuator Control Circuit Short to Battery |
|
| DTC stored | An electric parking brake system malfunction is displayed on the multi-information display. |
WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
- The electric parking brake may still operate up to 20 seconds after the engine switch is turned off. Before disconnecting connectors or fuses, turn the engine switch off and wait 20 seconds or more.
-
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.
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- When replacing the skid control ECU (brake actuator assembly), operate the electric parking brake switch assembly as the parking brake indicator light blinks (red) when the engine switch is first turned on (IG).
PROCEDURE
| 1. | CHECK FOR SHORT TO +B |
(a) Turn the engine switch off.
(b) Make sure the No. 1 parking brake wire assembly is securely installed.
(c) Disconnect the b1 parking brake actuator assembly RH connector.
| (d) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| OK |  | REPLACE PARKING BRAKE ACTUATOR ASSEMBLY RH |
|
| 2. | CHECK FOR SHORT TO +B |
(a) Disconnect the bN3 No. 1 parking brake wire assembly connector.
| (b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
| OK | | REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY |
|
| 3. | CHECK FOR SHORT TO +B |
(a) Disconnect the bN3 No. 1 parking brake wire assembly connector.
(b) Disconnect the A40 skid control ECU (brake actuator assembly) connector.
(c) Measure the voltage according to the value(s) in the table below.
| *a | Front view of wire harness connector | *b | (to Skid Control ECU (Brake Actuator Assembly)) |
| *c | (to No. 1 Parking Brake Wire Assembly) | - | - |
Standard Voltage:
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| bN3-2 or A40-2 (MRR+) - Body ground | Always | Below 1 V |
| bN3-1 or A40-3 (MRR-) - Body ground | Always | Below 1 V |
| OK | | REPLACE SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Right Electric Parking Brake Actuator Control Circuit Open (C061013)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note C061013 Right Electric Parking Brake Actuator Control Circuit Open
Diagnosis Condition:
Elec
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 part
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Electric Parking Brake System DTC No. Detection Item Memory Note Link C059704 Brake System Control Module "A" System Internal Failure DTC stored An e
SEE MORE:
Lost Communication With ECM/PCM "A" (U0100,...,U1117)
DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the main body ECU (multiplex network body ECU) and other ECUs. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0100 Lost Communication With ECM/PCM "A" The main body EC
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the sliding roof system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT:
In troubleshooting, confirm that the problem sympto
