DTC C1130-13: Unified Electric Parking Brake Actuator Control Circuit Open [11/2021 - 10/2023]: Procedure

1. Turn the ignition switch off.
2. Disconnect the A102 No. 2 skid control ECU (brake actuator assembly) connector.
3. Disconnect the L78 parking brake with bracket actuator assembly connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A102-3 (M+) - L78-8 (M+)	Always	Below 1 Ω
   A102-2 (M-) - L78-7 (M-)	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  2

1. Turn the ignition switch off.
2. Disconnect the L78 parking brake with bracket actuator assembly connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component without harness connected (Parking Brake with Bracket Actuator Assembly)

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L78-7 (M-) - L78-8 (M+)	Always	Below 4 Ω
   L78-7 (M-) - Body ground	Always	10 kΩ or higher
   L78-8 (M+) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE NO. 2 SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY). Refer to  REMOVAL [11/2021 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023] 

Result: 

NG 

REPLACE PARKING BRAKE WITH BRACKET ACTUATOR ASSEMBLY. Refer to  REMOVAL [11/2021 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023]