Conditions for Running the DTC

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

DTC P034A

DTCP0335, P0336, P0651 = Not set
Crankshaft position is being verified.
Engine=Running- After an autostop event.

Frequency the DTC runs=Continuously - After the running conditions are met

DTC P034B

*DTC P0335, P0336, P0651 = Not set
Crankshaft Position Sensor =Signal received.
Engine Speed=400 to 2, 000 RPM
MAF Sensor=Greater than 1.5 g/s

Frequency the DTC runs=Continuously - After the running conditions are met