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TuningBot DTC Database · v4.37.14

U3024 Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation

Generic (OBD-II) interpretation in the TuningBot DTC database.

U · NetworkNetworkOBD2

What U3024 means

U3024
Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation Generic · network Data confidence 65%

The control module detected a fault associated with the Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode.

Symptoms

  • Multiple warning lamps possible
  • Functions of the affected module unavailable

Possible causes

  • CAN bus wiring fault (open, short, chafed harness)
  • Faulty control module loading the bus
  • Connector or terminal corrosion
  • Power supply or ground fault of a module

Recommended checks

  • Perform a full-module scan to map which modules communicate
  • Check CAN bus resistance and voltages at the diagnostic connector
  • Inspect wiring and connectors of the affected module
  • Check module power supply and grounds
  • Disconnect suspect modules one at a time only with a documented procedure

Related and nearby codes

How to read U3024

U

Network: communication between control units.

3

Generic SAE-standard code: same meaning on every make.

024

Specific fault index within the subsystem.

Frequently asked questions about U3024

What does U3024 mean?

Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation. The control module detected a fault associated with the Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode.

Is U3024 generic or manufacturer-specific?

U3024 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove U3024 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 U3024 is removable in your case.

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