C13AD

PARKING BRAKE: ELECTRIC PARKING BRAKE SYSTEM: C13AD/23: Open in +B Circuit
C13AD/23 - Open in +B Circuit

DESCRIPTION





HINT
*: This value is based on the assumption that the battery voltage is 12 V.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
- If the electric parking brake ECU or electric parking brake actuator is replaced, perform the "Reset Memory" and "ACQUIRE TENSION SENSOR ZERO POINT" procedures Programming and Relearning.
- Before disconnecting connectors or fuses, turn the engine switch off and wait 20 seconds or more.

PROCEDURE

1. INSPECT FUSE (E-PKB)

(a) Remove the E-PKB fuse from the luggage room junction block.

(b) Measure the resistance of the fuse.

Standard resistance:





Result





B -- CHECK HARNESS AND CONNECTOR (ECU - BATTERY)
A -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (ECU - BODY GROUND)

(a) Disconnect the S46 ECU connector.

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





Standard resistance:





NG -- CHECK FOR SHORTS IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE

OK -- REPLACE FUSE

3. CHECK HARNESS AND CONNECTOR (ECU - BATTERY)

(a) Disconnect the S46 ECU connector.

(b) Measure the voltage according to the value(s) in the table below.





Standard voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK ELECTRIC PARKING BRAKE ECU (DATA LIST)

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and the Techstream on.

(d) Enter the following menus: Chassis / Electric Parking Brake / Data List.

(e) Check the values by referring to the table below.

Electric Parking Brake





OK:

Values are as shown in normal condition.

NG -- REPLACE ELECTRIC PARKING BRAKE ECU Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting