Electronic Brake Control Module: Service and Repair

REMOVAL

NOTE: While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on. Therefore during servicing of the brake system components, do not operate the brake pedal and open/ close the doors while the battery is connected.

1. REMOVE ENGINE ROOM SIDE COVER LH
2. REMOVE V-BANK COVER SUB-ASSEMBLY
3. REMOVE COWL TOP VENTILATOR LOUVER RH
4. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.

5. REMOVE SKID CONTROL ECU




a. Disconnect the short connector for the brake stroke simulator (labeled A) from the bracket of the skid control ECU.
b. Remove the 2 bolts (labeled B), nut (labeled C) and ECU.




c. Pull the 2 lock levers upward to release the locks and disconnect the 2 connectors (labeled D).
d. Disconnect the connector (labeled E).

6. REMOVE SKID CONTROL ECU BRACKET




a. Remove the 2 nuts, bolt and bracket.

INSTALLATION

NOTE: While the battery is connected, even if the engine switch is off, the brake control system activates when the brake pedal is depressed or the door courtesy switch turns on.

Therefore during servicing of the brake system components, do not operate the brake pedal and open/ close the doors while the battery is connected.

1. INSTALL SKID CONTROL ECU BRACKET




a. Install the bracket with the bolt and 2 nuts.

Torque: 8.5 N.m (87 kgf.cm, 75 in.lbf)

2. INSTALL SKID CONTROL ECU




a. Connect the 2 connectors (labeled A) and press the lock levers down to lock the connectors.

NOTE: Make sure that the lock levers securely lock the connectors.

b. Connect the connector (labeled B).




c. Install the ECU with the 2 bolts (labeled C) and nut (labeled D).

Torque: 8.5 N.m (87 kgf.cm, 75 in.lbf)

d. Connect the short connector for the brake stroke simulator (labeled E) to the bracket of the skid control ECU.

3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
4. INSTALL COWL TOP VENTILATOR LOUVER RH

5. CHECK AND CLEAR DTC
a. Check and clear the DTCs.

6. PERFORM LINEAR VALVE OFFSET LEARNING
a. When the skid control ECU is replaced, perform the linear valve offset learning.

7. PERFORM YAW RATE SENSOR ZERO POINT CALIBRATION
a. Perform the yaw rate sensor zero point calibration.

8. PERFORM TEST MODE INSPECTION
a. Perform the test mode inspection.

9. PERFORM INITIALIZATION
a. Perform initialization.

NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.

10. INSTALL ENGINE ROOM SIDE COVER LH
11. INSTALL V-BANK COVER SUB-ASSEMBLY