Skip to content

Powertrain

P1387

Code meaning and manufacturer information

OBD-II / DTC

Reference meaning

What does this code mean?

The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.

A code identifies a detected condition, not a part that must automatically be replaced.

Narrow by vehicle

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Before replacing a part

Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.

Scan worksheet →

Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

View all ↗

Chevrolet P1387

Engine Block Coolant Control Valve Position Sensor Stop Performance — Internal Component Fault

NHTSA 11004390 ↗

GMC P1387

Engine Block Coolant Control Valve Position Sensor Stop Performance — Internal Component Fault

NHTSA 11004390 ↗

Manufacturer communications

1

Original wording in English

View all ↗

24-NA-110 ↗

CHEVROLET, GMC

This technical bulletin provides repair information to correct a customer concern of MIL Set P1387: Engine Block Coolant Control Valve Position Sensor Stop Performance — Internal Component Fault.

Check vehicle applicability

2

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

View all ↗

MakeModelModel year
ChevroletTRAVERSE ↗2024
GMCACADIA ↗2024

Code meaning and manufacturer information

Original wording in English · Historical directory labels; manufacturer applicability has not been established for every entry.

Variable Cam Timing Solenoid #2 Circuit Malfunction

Can I keep driving?

A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.