GM 20943125
Battery Cable

You should start by disconnecting the negative Battery Cable before replacing it. First remove the outlet duct from the air cleaner before disconnecting the electrical connector which controls the battery current from the sensor. For vehicles with a battery current sensor installed you must first remove the clip that secures the sensor to the battery tray. The negative Battery Cable stud must be removed first from the front of the right cylinder head before taking out the negative Battery Cable terminal that connects to the cylinder head. Turn your wheels in a controlled manner while sustaining the vehicle elevation then extract the ground bolt which anchors the forward lamp wiring harness and separate the harness terminal which connects to the frame. Cut the negative Battery Cable terminal through the radiator support and frame opening. Then remove the negative Battery Cable clip from the chassis harness. Lower the car then take out the negative Battery Cable clip from its position on the right wheelhouse liner. To begin installations or if the negative Battery Cable needs replacement the user must first disconnect the vehicle negative Battery Cable and if performing a battery current sensor replacement this step must be completed as well. Installation requires installation of the battery current sensor only when the negative Battery Cable was replaced. Place the engine harness terminal behind the vehicle's negative battery terminal before installing the negative Battery Cable. Position the negative Battery Cable terminal at the cylinder head location while installing its stud to the front of the right cylinder head with torque to 25 nm (18 lb ft). Before lifting the vehicle secure the negative Battery Cable clip to the right wheelhouse liner and proceed with installation of the clip to the chassis harness. The negative Battery Cable terminal should pass behind the forward lamp harness as you guide it through the radiator support and frame opening. Bolt the forward lamp wiring harness terminal onto the frame while ensuring the anti-rotation tab enters the frame hole. Tighten the forward lamp wiring harness ground bolt to 25 nm (18 lb ft). Set the vehicle to its base position while you attach the battery current sensor clip to the battery tray if equipped and join the engine harness electrical connector to the battery current sensor. The air cleaner outlet duct goes on next followed by connecting the negative Battery Cable.

To remove the negative Battery Cable, the following has to be done, firstly disconnect the negative Battery Cable from the battery current sensor and then remove the engine wiring harness electrical connector from the battery current sensor. The negative energy cable clip will offer that you unclamp from the auxiliary bussed electrical center (BEC) as well as the negative Battery Cable ground securable hammer, haft, and bolt from the balanced hind part engine block boss. Remove the negative Battery Cable and the engine wiring harness ground leads from the engine block boss. Lift and adequately raise the vehicle, and then take off the engine wiring harness ground lead bolt from the frame and remove the engine wiring harness ground lead and the negative Battery Cable lead from the frame. Lower the vehicle and disconnect the negative Battery Cable assembly at the top of the positive Battery Cable. For installation, install the vehicle part of the negative Battery Cable assembly to the vehicle, placing it under the positive Battery Cable, and lift the vehicle once again. Before turning off the positive Battery Cable lead, position it behind the engine wiring harness ground lead and place both leads on the frame. Soak the two ends of the Battery Cable and the two ends of the in-line fuse in a paste to stop the tips from flaking off, insert the anti-rotation tab on the engine harness ground lead in the hole on the frame, install the engine wiring harness ground lead to the frame bolt and tighten to 9 nm (80 lb in). Lower the vehicle and connect the engine wiring harness ground lead behind the negative Battery Cable lead and both leads to the engine block boss. Last, attach the negative Battery Cable ground terminal to the engine block boss bolt tight to 50 nm (37 lb ft), and the negative Battery Cable clip to the auxiliary bec, then the engine wiring harness electrical connector to the battery current sensor before attaching the negative Battery Cable.

Install the underhood fuse block cover and reconnect the negative battery cable.

Lift the junction block retainers from the locked position and rotate them to the open position, then reposition the junction block.

Remove the positive battery cable lead from the mega fuse stud.

Connect the positive battery cable terminal to the battery.

Attach the positive battery cable lead to the mega fuse stud, ensuring to install the positive battery cable nut and tighten it to 9 Nm (80 lb in).

Reposition the negative battery cable insulating cover from the negative battery terminal and rotate the lever lock counterclockwise to disconnect the negative battery cable from the battery.

Lift the junction block retainers from the locked position and rotate them to the open position before removing the junction block.