Power and Ground Distribution: Service and Repair
Engine Main HarnessREMOVAL PROCEDURE
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
1. Remove the battery.
2. Remove the nut from the positive (+) battery cables.
3. Separate the positive (+) battery cable from the fuse and relay block 1 feed cable.
4. Remove the air cleaner assembly.
5. Remove the 2 bolts that hold fuse and relay block 1 to the inner fender.
6. Carefully pull fuse and relay block 1 away from the inner fender and unsnap the lower cover.
7. Disconnect each of the harness connectors.
8. Remove fuse and relay block 1 from the vehicle.
9. Remove the bolt that holds fuse and relay block 2 to the inner fender.
10. Remove the bolts that hold fuse and relay block 3 to the front support.
11. Disable the SIR system. Refer to Disabling the SIR System in Restraints.
12. Disconnect the following underhood electrical connectors:
^ The SIR left front discriminating sensor
^ The brake pressure modulating valve (BPMV)
^ The brake fluid level switch
^ The left front wheel speed sensor
^ The right headlamp
^ The left headlamp
^ The left turn/park lamp
^ The right turn/park lamp
^ The A/C refrigerant pressure switch
^ The ambient air temperature sensor
^ The horn
^ The (main) radiator fan motor
^ The auxiliary radiator fan motor (with A/C)
^ The windshield washer pump
^ The generator B+ wire
^ G104
13. Remove the knee bolster.
14. Disconnect the following interior electrical connectors:
^ C1 from junction block 2
^ C2 from junction block 2
^ C2 from junction block 1
^ C200
^ C201
^ C202
^ C203
15. Remove the harness from the interior of the vehicle. Push the harness through the bulkhead grommet into the engine compartment.
16. Remove the bolts from the upper radiator support brackets.
17. Disconnect the harness retaining clips.
18. Lean the radiator assembly forward.
19. Note the routing of the harness. Remove the harness from the vehicle.
INSTALLATION PROCEDURE
1. Lean the radiator assembly forward.
2. Install the harness to the vehicle.
3. Connect the harness retaining clips.
4. Install the bolts to the upper radiator support brackets.
5. Install the harness to the interior of the vehicle. Push the harness through the bulkhead grommet into the interior compartment.
6. Connect the following interior electrical connectors:
^ C1 to junction block 2
^ C2 to junction block 2
^ C2 to junction block 1
^ C200
^ C201
^ C202
^ C203
7. Install the knee bolster.
8. Install fuse and relay block 3 to the front support. Secure with the 2 bolts.
9. Install fuse and relay block 2 to the inner fender. Secure with the 1 bolt.
10. Install fuse and relay block 1 to the vehicle.
11. Connect each of the harness connectors.
12. Install the lower cover.
13. Install fuse and relay block 1 to the inner fender. Secure with the 2 bolts.
14. Connect the following underhood electrical connectors:
^ The SIR left front discriminating sensor
^ The brake pressure modulating valve (BPMV)
^ The brake fluid level switch
^ The left front wheel speed sensor
^ The right headlamp
^ The left headlamp
^ The left turn/park lamp
^ The right turn/park lamp
^ The A/C refrigerant pressure switch
^ The ambient air temperature sensor
^ The horn
^ The (main) radiator fan motor
^ The auxiliary radiator fan motor (with A/C)
^ The windshield washer pump
^ The generator B+ wire
^ G104
15. Install the air cleaner assembly.
16. Install the positive (+) battery cable to the fuse and relay block 1 feed cable. Install the nut.
17. Enable the SIR system. Refer to Enabling the SIR System in Restraints.
18. Install the battery.