Hybrid Control Processor secret code; missing message
Chrysler · network
HighData confidence98%
The cited OEM bulletin documents U151A:87 for Chrysler in the stated vehicle and controller context. It identifies hybrid control processor secret code; missing message; the bulletin-specific condition must not be generalized to other platforms or modules.
Symptoms
Vehicle may not start
code may be stored or active
Possible causes
HCP/AHCP module software condition
Recommended checks
Perform a full module scan
Verify battery voltage
Check module power supplies and grounds
Inspect network wiring and connectors
Measure network resistance with power isolated
Check applicable OEM service information
Applies to2021 Chrysler Pacifica PHEV|3.6L V6 PHEV EH3Hybrid Control Processor (HCP) / Auxiliary Hybrid Control Processor (AHCP)
Manufacturer-defined range: the meaning can differ between brands.
51A
Specific fault index within the subsystem.
Frequently asked questions about U151A
What does U151A mean?
Hybrid Control Processor secret code; missing message. The cited OEM bulletin documents U151A:87 for Chrysler in the stated vehicle and controller context. It identifies hybrid control processor secret code; missing message; the bulletin-specific condition must not be generalized to other platforms or modules.
Is U151A generic or manufacturer-specific?
U151A is a manufacturer-specific code. In this database it is documented for: Chrysler. The same number can mean something different on other brands.
Can TuningBot remove U151A 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 U151A is removable in your case.
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Chrysler