Removal Procedure

Battery Negative Cable - Disconnect - Battery Negative Cable Disconnection and Connection
Front Compartment Fuse Block Cover - Remove - Front Compartment Fuse Block Cover Replacement
Courtesy of GENERAL MOTORS COMPANY

Release the retaining tabs and remove the front compartment fuse block cover (1).
Courtesy of GENERAL MOTORS COMPANY

Battery Positive Junction Block Cable Nut (2) - Remove
Battery Positive Junction Block Cable (1) - Reposition away
Engine Wiring Harness Junction Block Nut (4) - Remove [4x]
Wiring Harness Terminal (3) - Reposition away [5x]
Courtesy of GENERAL MOTORS COMPANY

Engine Wiring Harness Junction Block Bolt (1) - Remove [3x]
Courtesy of GENERAL MOTORS COMPANY

Retaining Tab (1) - Disengage [5x]
Courtesy of GENERAL MOTORS COMPANY

NOTE:
If replacing the engine wiring harness junction block, the NEW engine wiring harness junction block assembly does not separate. Do not try and separate the 10 retainer tabs, the engine wiring harness junction block and circuit board will be damaged.

Engine Wiring Harness Junction Block (1) - Remove