P3454

DTC P3454, sometimes indicated as P345400 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing cylinder 7 exhaust valve control circuit performance.

The exhaust valve control circuit performance diagnostic trouble code (DTC) is set when the powertrain control module (PCM) detects an exhaust valve control circuit malfunction.
Possible causes of this code include a defective exhaust valve, a defective exhaust valve control solenoid, a wiring or connector problem, or a PCM problem.
The first step in diagnosing this code is to check for a stored fault code. If a fault code is not stored, the next step is to check the wiring and connectors for damage or corrosion. If the wiring and connectors are okay, the next step is to test the exhaust valve and exhaust valve control solenoid for proper operation. If the exhaust valve or exhaust valve control solenoid is defective, the problem will need to be repaired. If the PCM is defective, the PCM will need to be replaced.

• P3454: Cylinder 7 Exhaust Valve Control Circuit Performance
• P3454: Exhaust valve control, cylinder 7 – circuit performance
• P3454 00: Exhaust valve control, cylinder 7 - circuit performance