B3874 Buick Lucerne DTC Code

Buick Lucerne Engine Specifications:

Engine Type :	Single Cylinder Engine
Cylinder Type :	V-Type Engine
Engine Air Intake Process :	Naturally Aspirated

Your Buick Lucerne engine control system detects a problem, the computer stores the diagnostic trouble code B3874 in its memory. To figure out what is wrong with your vehicle you must first extract the B3874 DTC For Buick Lucerne.

A good ground connection is also extremely important. B3874 Buick Lucerne engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

B3874 Buick Lucerne DTC Meaning

B	Body Code - Problem is antilock brake system, electronic suspension and steering systems.
3	SAE - Generic
8	Accelerator Pedal Position (APP) Sensor 1 Performance
7	Exhaust Gas Recirculation System Valve 1
4	Cruise Vehicle Speed/Set Speed Difference Too High

The rule of B3874 Buick Lucerne code when it comes to emissions-related vehicle repair is that any modification that changes the vehicle from a certified configuration to a non-certified configuration is considered tampering: this applies to both vehicle owners and repair facilities and is, therefore, a Federal offense. Replacing a catalyst with a straight pipe is one traditional example of B3874. Likewise, overriding the OBD B3874 DTC For Buick Lucerne system through the use of high-tech defeat devices or non-certified computer chips, for example, would also be considered tampering. The OBD system may, however, be repaired back to its original certified configuration with certified performance chips or appropriate aftermarket parts.