GM 15930149
Junction Block

One must begin Fuse Box replacement by disconnecting the negative Battery Cable followed by seat and cover removal. The initial step requires you to detach both the Fuse Box positive Battery Cable nut and cable from their block base position. Users with yf7 system must disconnect electrical connectors from the Fuse Box. The Fuse Box needs complete caged bolt loosening to release its block base holding tabs before it can be extracted from its base. Separate the Fuse Box base nuts (1, 3) along with disconnecting the wiring harness from the Fuse Box base until you can extract the Fuse Box base from under the floor. You must connect the wiring harness to the Fuse Box base before securing the Fuse Box base at floor studs while avoiding electrical connections (4, 5) from getting trapped under the Fuse Box base. Fasten the Fuse Box base nuts (1, 3) onto the floor studs while tightening them to 5 n.m (44 lb in). Install the Fuse Box onto the Fuse Box base while making sure the retaining tabs completely fit because you should then tighten all bolts to 5 n.m (44 lb in). If the vehicle has yf7 it requires electrical connector attachment before installing the positive Battery Cable to the Fuse Box while tightening the nut to 10 n.m (88 lb in). After installing the Fuse Box cover it is necessary to return the driver's seat properly while reconnecting the negative Battery Cable.

The first step to replace the battery positive cable extension cable junction block starts with disconnecting the auxiliary battery negative cable then removing the positive Battery Cable nut from the junction block. The first step involves hoisting the car properly and then taking out the bolt securing the auxiliary cable clip to the frame. Start by removing the starter lead nut and then disconnecting both the starter stud auxiliary positive cable and the starter lead nut before final removal of the auxiliary positive Battery Cable. To install the components start with the auxiliary positive Battery Cable and afterwards connect it to the starter stud before tightening the starter lead nut to 9 n.m (80 lb in). Fit the auxiliary cable clip bolt onto the frame while tightening it to 10 n.m (89 lb in). Drive the vehicle down before fastening the auxiliary positive Battery Cable to the junction block by means of the auxiliary positive Battery Cable nut then tighten it to 8 n.m (71 lb in). The last step is to reconnect the auxiliary battery negative cable.

Disconnection of the battery negative cable starts the process of body wiring harness Fuse Box replacement followed by removal of driver seat installation. The procedure requires removing the Fuse Box cover followed by unfastening the positive Battery Cable nut and positive cable from the Fuse Box. The electrical connectors must be disconnected from the Fuse Box when using yf7 grounding function. The Fuse Box base must have its retaining tabs released by loosening the bolt caged completely before you can remove it from its block base. Complete this task by first removing Fuse Box base nuts (1, 3) and the wiring harness from the Fuse Box base. Then extract the Fuse Box base from underneath the floor. The initial step for installation involves wiring the Fuse Box base to its floor studs after fastening the remaining electrical connectors (4, 5) out of the Fuse Box base's pathway. Attach base nuts of the Fuse Box to floor studs then tighten them using 5 n.m (44 lbs in). The Fuse Box should be attached to the Fuse Box base so that all retaining tabs are stable before tightening bolts to 5 n.m (44 lb in). Users with yf7 must link electrical connectors before they attach the positive Battery Cable to the Fuse Box. They should install the positive Battery Cable nut and secure it with 10 n.m torque. The last step involves replacing the Fuse Box cover followed by mounting the driver seat before reattaching the battery negative wire.

The procedure for replacing body wiring harness junction block begins with disconnecting the negative Battery Cable followed by removing the driver seat. The procedure starts by removing both the positive Battery Cable and its nut from the junction block while simultaneously taking off the junction block cover. The motorist should disconnect electrical connectors at the junction block when yf7 is present. Start by fully loosening the junction block caged bolts. After releasing the tabs connecting the junction block to its base position, pull out the junction block from the block base. Begin this process by removing junction block base nuts (1, 3) together with the wiring harness from the junction block base. After that replace the junction block base on the floor. The wiring harness installation starts by mounting it to the junction block base while making sure electrical connectors number 4 and number 5 remain exposed above the junction block base. We need to tighten each junction block base nut of 5 n.m (44 lb in) onto its corresponding floor stud. Place the junction block into the junction block base so the retaining tabs rest fully then fasten the bolts to 5 n.m (44 lb in). First connect electrical connectors when using yf7 before attaching the positive Battery Cable to the junction block and installing its nut to achieve a torque reading of 10 n.m (88 lb in). Use the junction block cover to complete the replacement while reattaching the driver seat and restoring the battery negative cable connection.

Before replacing the body wiring harness Fuse Box, the operator must first disconnect the negative Battery Cable then remove the driver seat. Begin by releasing the Fuse Box cover and unfastening both the positive Battery Cable nut as well as the cable from the Fuse Box. You should detach all the electrical connectors when using yf7 on the Fuse Box. Users must loosen the Fuse Box caged bolts to their full extent to expose Fuse Box base tabs which can be released for Fuse Box removal. Start by taking off the Fuse Box base nuts (1, 3) along with the wiring harness from the Fuse Box base. After that, remove the Fuse Box base itself off the floor. Install the wiring harness to the Fuse Box base before you mount it on floor studs while ensuring that other electrical connectors (4 and 5) remain outside of the Fuse Box base area. Install Fuse Box base nuts to floor studs after positioning them at proper locations. Fasten these nuts until they reach 5 n.m (44 lb in). Start by mounting the Fuse Box onto the Fuse Box base with retaining tabs completely seated in place and secure the bolts to 5 n.m (44 lb in). Follow the yf7 electrical connector procedure or use the positive Battery Cable to connect to the Fuse Box by installing its nut and tightening it to 10 n.m (88 lb in). After installing the Fuse Box cover the driver should reinstall their seat while reattaching the negative Battery Cable.

Reinstall the Chassis Harness, I/P Harness, Engine Harness, and Forward LP Harness into the junction block base, followed by the fuse relay center.

Disconnect the electrical connectors from the junction block.

Reattach the harness ends to the fuse block relay center and secure them with the harness end nuts.