Nissan Battery-Related Code

This bulletin applies to 2015 and later Nissan vehicles (except those equipped with the Cummins V8 diesel). The MIL may be on with DTC P0603 (ECM back up/circuit)

P0603 is often the result of low battery voltage, a discharged battery or battery terminals disconnections

1.    Confirm that the battery voltage is 11 volts or more with ignition on/engine off. 

2.    Connect C-III plus VI to the vehicle.

3.    Open C-III plus on the CONSULT PC.

4.    Turn the ignition on (engine off)

5.    Erase the DTCs

6.    Turn the ignition off.

7.    Turn the ignition on again and wait for at least 1 second.

8.    Turn the ignition off and wait for at least 10 seconds.

9.    Repeat steps 7 and 8 ten times, and then proceed to step 10.

10.    Turn the ignition on. Confirm first trip DTC P0603 is not stored.

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Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

About the Author

Mike Mavrigian | Editor

Mike received a BA degree from Youngstown State University in English Literature with a minor in Journalism in 1975.