Sierra 2500 Denali 2WD V8-6.0L (2011)
Auxiliary Battery Relay: Service and Repair
Auxiliary Battery Relay Replacement
Removal Procedure
Warning: Refer to Battery Disconnect Warning (See: Starting and Charging/Battery/Service Precautions).
1. Disconnect the auxiliary battery negative cable. Refer to Battery Negative Cable Disconnection and Connection (Single Battery) (See: Starting
and Charging/Battery/Battery Cable/Negative/Service and Repair)Battery Negative Cable Disconnection and Connection (TP2) (See: Starting
and Charging/Battery/Battery Cable/Negative/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.
