Special Tools
WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
J 38522 Variable Signal Generator
For equivalent regional tools, refer to Special Tools .
The purpose of this test is to provide a simulated output speed sensor signal to the control solenoid valve assembly.