P0704 Buick Clutch Switch Input Circuit Malfunction

P0705 Buick Transmission Range Sensor Circuit Malfunction

Possible causes
– Faulty Park/Neutral Position Switch
– Misadjusted Park/Neutral Position Switch
– Park/Neutral Position Switch harness is open or shorted
– Park/Neutral Position Switch circuit poor electrical connection
What about the obd code?
The transmission range switch detects the selector lever position and sends a signal to the TCM.
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0705 Buick Description

The park/neutral position (PNP) switch includes a transmission range switch. The transmission range switch detects the selector lever position when the shift lever is in the N or P shift position and sends a signal to the Transmission Control Module (TCM).

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