Conditions for Running the DTC

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

P1820, P1822, P1823, P1825

The engine is running for 5 seconds.
The IMS indicates PARK for 1 second or greater.
The engine torque is 50 N.m (37 lb ft) or greater.
No engine torque malfunction.

P1826

No OSS DTC P0722 or P0723.
DTC P1826 has not passed this key cycle.
The engine is running for 5 seconds.
The IMS indicates PARK for 1 second or greater.
The engine torque is 50 N.m (37 lb ft) or greater.
Vehicle speed is 16 km/h (10 mph) or greater.
No engine torque malfunction.

P1915

The engine speed is greater than 560 RPM for 5 seconds.
A CRANK request signal has been requested for 409 seconds or greater.