Battery voltage — Circuit Voltage Below Threshold
Land Rover · battery
Data confidence95%
The L405 Deployable Side Step ECU detected battery voltage with failure type 16, circuit voltage below threshold. This interpretation is limited to the documented DSS controller.
Recommended checks
Perform a full module scan
Verify battery voltage
Inspect DSS wiring and connectors
Inspect the running-board mechanism for binding
Check the Hall-effect sensor signal when applicable
Follow the Land Rover DSS troubleshooting guide
Applies toRange Rover L405 2013 model yearDeployable Side Step (DSS) ECU
U3003:17
Battery voltage — Circuit Voltage Above Threshold
Land Rover · battery
Data confidence95%
The L405 Deployable Side Step ECU detected battery voltage with failure type 17, circuit voltage above threshold. This interpretation is limited to the documented DSS controller.
Recommended checks
Perform a full module scan
Verify battery voltage
Inspect DSS wiring and connectors
Inspect the running-board mechanism for binding
Check the Hall-effect sensor signal when applicable
Follow the Land Rover DSS troubleshooting guide
Applies toRange Rover L405 2013 model yearDeployable Side Step (DSS) ECU
Generic SAE-standard code: same meaning on every make.
003
Specific fault index within the subsystem.
Frequently asked questions about U3003
What does U3003 mean?
Diagnostic Trouble Code (2 variants). The L405 Deployable Side Step ECU detected battery voltage with failure type 16, circuit voltage below threshold. This interpretation is limited to the documented DSS controller.
Is U3003 generic or manufacturer-specific?
U3003 exists both as a generic OBD-II code (same meaning on every make) and with 1 manufacturer-specific interpretation(s): Land Rover. Always read it in the context of your vehicle.
Can TuningBot remove U3003 at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U3003 is removable in your case.
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