ABS 5.3 Assembly Removal and Installation: Removal

Disconnect the negative battery cable.
Drain the engine coolant and remove the engine coolant reservoir tank.
Disconnect the 31-pin ABS wiring harness connector from its socket on the EBCM.

Fig 1: Disconnecting The ABS Wiring Harness Connector
Courtesy of SUZUKI OF AMERICA CORP.
Cover the connector and the socket with shop cloths to protect them from brake fluid.
NOTE: Take care not to allow air into the hydraulic unit or into the brake pipes from the master cylinder. If air gets into the hydraulic unit, it will require a bleeding procedure using a scan tool programmed for the ABS 5.3 system. As long as no air enters the hydraulic unit, a simple bleeding procedure is all the system will require.
Remove the brake pipes from the hydraulic unit. It may be necessary to loosen the brake pipe nuts on the master cylinder to allow for moving those pipes out of the way.

Fig 2: Removing The Brake Pipes From The Hydraulic Unit
Courtesy of SUZUKI OF AMERICA CORP.
Loosen the mounting nuts on the hydraulic unit.
Move the brake pipes aside far enough to allow for lifting the ABS 5.3 unit out of the mounting bracket.
Tighten the brake pipe nuts on the master cylinder to avoid leaking brake fluid.
Cap the brake pipes.