DTC C0613-19: Right Electric Parking Brake Actuator Circuit Current Above Threshold [12/2021 - ]: Procedure
- INSPECT NO. 1 PARKING BRAKE WIRE ASSEMBLY
- Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK
The connector is securely connected.
- Disconnect the MM4 and M49 No. 1 parking brake wire assembly connectors.
- Check both the connector case and the terminals for deformation and corrosion.
OK
No deformation or corrosion.
- Measure the resistance according to the value(s) in the table below.
*a Front view of No. 1 Parking Brake Wire Assembly *b (to wire harness connector) *c (to Parking Brake Actuator Assembly RH) - - Standard Resistance
Tester Connection Condition Specified Condition MM4-1 - M49-2 (+) Always Below 1 Ω MM4-1 or M49-2 (+) - Body ground and other terminals Always 10 kΩ or higher MM4-2 - M49-1 (-) Always Below 1 Ω MM4-2 or M49-1 (-) - Body ground and other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY
Result:
OK
See step 2
- Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- CHECK HARNESS AND CONNECTOR (NO. 2 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - PARKING BRAKE ACTUATOR ASSEMBLY RH)
- Make sure the No. 1 parking brake wire assembly is securely installed.
- Disconnect the A105 No. 2 skid control ECU (brake actuator assembly) connector.
- Disconnect the M49 parking brake actuator assembly RH connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition A105-13 (MRR+) - M49-2 (+) Always Below 1 Ω A105-13 (MRR+) or M49-2 (+) - Body ground Always 10 kΩ or higher A105-12 (MRR-) - M49-1 (-) Always Below 1 Ω A105-12 (MRR-) or M49-1 (-) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 3
- INSPECT PARKING BRAKE ACTUATOR ASSEMBLY RH
Refer to INSPECTION [11/2018 - ]
Result
Proceed to OK NG Result:
NG
REPLACE PARKING BRAKE ACTUATOR ASSEMBLY RH. Refer to REMOVAL [11/2018 - ]
Result:
OK
See step 4
- CHECK FOR SHORT TO +B
- Make sure the No. 1 parking brake wire assembly is securely installed.
- Disconnect the M49 parking brake actuator assembly RH connector.
- Measure the voltage according to the value(s) in the table below.
*a Front view of No. 1 Parking Brake Wire Assembly
(to Parking Brake Actuator Assembly RH)Standard Voltage
Tester Connection Condition Specified Condition M49-2 (+) - M49-1 (-) Electric parking brake not operating Below 1 V Result
Proceed to OK NG
Result:
OK
REPLACE PARKING BRAKE ACTUATOR ASSEMBLY RH. Refer to REMOVAL [11/2018 - ]
Result:
NG
See step 5
- CHECK FOR SHORT TO +B
- Disconnect the MM4 No. 1 parking brake wire assembly connector.
- Measure the voltage according to the value(s) in the table below.
*a Front view of wire harness connector
(to No. 1 Parking Brake Wire Assembly)Standard Voltage
Tester Connection Condition Specified Condition MM4-1 - MM4-2 Electric parking brake not operating Below 1 V Result
Proceed to OK NG
Result:
OK
REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY
Result:
NG
See step 6
- CHECK FOR SHORT TO +B
- Disconnect the MM4 No. 1 parking brake wire assembly connector.
- Disconnect the A105 No. 2 skid control ECU (brake actuator assembly) connector.
- Measure the voltage according to the value(s) in the table below.
*a Front view of wire harness connector *b (to No. 2 Skid Control ECU (Brake Actuator Assembly)) *c (to No. 1 Parking Brake Wire Assembly) - - Standard Voltage
Tester Connection Condition Specified Condition MM4-1 or A105-13 (MRR+) - Body ground Always Below 1 V MM4-2 or A105-12 (MRR-) - Body ground Always Below 1 V Result
Proceed to OK NG
Result:
OK
REPLACE NO. 2 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to REMOVAL [12/2021 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR