Auxiliary Battery Relay: Service and Repair

Auxiliary Battery Relay Replacement

Removal Procedure
Warning: Refer to Battery Disconnect Warning (Service Precautions).





1. Disconnect the auxiliary battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Single Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (Dual Batteries) (Service and Repair)Battery Negative Cable Disconnection and Connection (Auxiliary Battery) (Service and Repair).
2. Reposition the auxiliary battery positive cable boot (5) from the auxiliary battery relay stud.
3. Remove the auxiliary battery positive cable nut (6) from the battery relay stud.
4. Remove the auxiliary battery positive cable from the auxiliary battery relay.




5. Disconnect the auxiliary battery positive cable electrical connector (1) from the battery relay.
6. Reposition the auxiliary battery positive cable boot (5) from the auxiliary battery relay stud.
7. Remove the auxiliary battery positive cable nut (4) from the battery relay stud.
8. Remove the auxiliary battery positive cable from the auxiliary battery relay.




9. Remove the auxiliary battery relay nuts and relay.

Installation Procedure





Caution: Refer to Fastener Caution (Fastener Caution).

1. Install the auxiliary battery relay and nuts and tighten to 9 Nm (80 lb in).




2. Install the auxiliary battery positive cable to the auxiliary battery relay.
3. Install the auxiliary battery positive cable nut (4) to the battery relay stud and tighten to 9 Nm (80 lb in).
4. Position the auxiliary battery positive cable boot (5) to the auxiliary battery relay stud.
5. Connect the auxiliary battery positive cable electrical connector (1) to the battery relay.




6. Install the auxiliary battery positive cable to the auxiliary battery relay.
7. Install the auxiliary battery positive cable nut (6) to the battery relay stud and tighten to 9 Nm (80 lb in).
8. Position the auxiliary battery positive cable boot (5) to the auxiliary battery relay stud.
9. Connect the auxiliary battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Single Battery) (Service and Repair)Battery Negative Cable Disconnection and Connection (Dual Batteries) (Service and Repair)Battery Negative Cable Disconnection and Connection (Auxiliary Battery) (Service and Repair).