(ESC Control Unit Removal And Installation)

ABBREVIATED PROCEDURE

Work		H/W	Tightening torque N.m(kgf.m/lb-ft)	SST/Equipment	Chemical	etc
Removal
1	Disconnect the battery (-) terminal	-	-	-	-	-
2	Drain the coolant. (Refer to Engine Mechanical System - "COOLANT ")	-	-	-	-	-
3	Remove the diagnostic connector bracket	Bolt	6.8 - 9.8 (0.7 - 1.0/5.0 - 7.2)	-	-	-
4	Disconnect the ESC control unit (HECU) connector	-	-	-	-	-
5	Disconnect the heated oxygen sensor (HO2S) connectors and extension wiring connector	-	-	-	-	-
6	Remove the connector bracket	Bolt	7.8 - 9.8 (0.8 - 1.0/5.8 - 7.2)	-	-	-
7	Disconnect the water hose.	Clamp	-	-	-	-
8	Disconnect the turbocharger outlet hose.	Clamp	-	-	-	-
9	Disconnect the brake tube	Nut	(A): 18.6 - 22.6 (1.9 - 2.3/13.7 - 16.6) (B): 12.7 - 16.7 (1.3 - 1.7/9.4 - 12.3)	-	-	Refer to appropriate service information
10	Remove the ESC control unit	Nut	16.7 - 25.5 (1.7 - 2.6/12.3 - 18.8)	-	-	Refer to appropriate service information
Installation
Install in the reverse order of removal.						Refer to appropriate service information
Additional work
Brake Bleeding Procedures Fill the brake reservoir with brake fluid and perform the brake bleeding procedure. Perform the 'Variant Coding', 'Pressure Sensor Calibration', 'Longitudinal G Sensor Calibration' After installation, perform the "Variant Coding', 'Pressure Sensor Calibration', 'Longitudinal G Sensor Calibration" using a diagnostic tool Perform the 'Assembly Check (ECU replacement)' After replacing the ESC control unit execute the "Assembly Check (ECU replacement)" of the additional function to check that the mounting is successful