P1270 GMC Engine RPM Or Speed Limiter Reached
Possible causes
– Wheel slippage (water, ice, mud and snow)
– Excessive engine RPM in neutral
– Vehicle drive at a high rate of speed
– Excessive engine RPM in neutral
– Vehicle drive at a high rate of speed
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1270 GMC Description
Engine RPM/Vehicle Speed Limiter Indicates the vehicle has been operated in a manner which caused the engine or vehicle to exceed a calibration limit. The engine rpm and vehicle speed are continuously monitored by the Powertrain Control Module (PCM). The P1270 GMC code is set when the rpm or speed fall out of calibrated range.
GMC Vehicle:GMC Acadia,GMC Canyon,GMC Envoy,GMC Savana 1500,GMC Savana 2500,GMC Savana 3500,GMC Sierra 1500,GMC Sierra 2500 HD,GMC Sierra 3500 HD,GMC Terrain,GMC Yukon,GMC Yukon XL 1500,GMC Yukon XL 2500,