P1674 Buick Tachometer Control Circuit

P1675 Buick EVAP Vent Solenoid Control Circuit

Possible causes
– EVAP canister vent control solenoid harness is open or shorted
– EVAP canister vent control solenoid circuit poor electrical connection
– Faulty EVAP canister vent control solenoid
– Engine Light ON (or Service Engine Soon Warning Light)
– Possible a noticeable fuel odor caused by the release of fuel vapors
P1675 Buick Description

The Engine Control Module (ECM) has detected an improper voltage level on the output driver module for the EVAP canister vent solenoid control circuit

Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera