Cruise Engaged Circuit High Voltage
2019-2019 Buick Enclave 3.6L V6
The 2019 Buick Enclave is equipped with a 3.6L V6 engine. Below you'll find detailed p1554 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The PCM detected high voltage on the cruise control engaged circuit when cruise should not be active.
Symptoms
- Cruise control activating unexpectedly
- Check Engine Light
- Cruise control inoperative
- Vehicle speed changes without input
Common Causes
- Faulty cruise control switch
- Short to voltage in cruise control circuit
- Faulty cruise control module
- Damaged wiring
Diagnostic Steps
- Test cruise control switch
- Check circuit voltage
- Inspect wiring for shorts to power
- Test cruise control module
Repair Notes
Repair shorted wiring or replace cruise control switch/module.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1554 on Other Vehicles
Common Questions
What does code P1554 mean on a 2019-2019 Buick Enclave?
P1554 stands for "Cruise Engaged Circuit High Voltage". The PCM detected high voltage on the cruise control engaged circuit when cruise should not be active.
What are the symptoms of P1554 on a Buick Enclave?
Common symptoms of P1554 include: Cruise control activating unexpectedly, Check Engine Light, Cruise control inoperative, Vehicle speed changes without input.
What causes P1554 on a 2019-2019 Buick Enclave?
Common causes of P1554 include: Faulty cruise control switch, Short to voltage in cruise control circuit, Faulty cruise control module, Damaged wiring.
Last updated: March 2026