Circuit/System Verification
WARNING: This page is about a different car, the 2008 Isuzu i-370, 2008 Isuzu i-290, 2008 GMC Canyon, and 2008 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, engine OFF, observe the scan tool ECM GEN-F Terminal Signal parameter. The parameter should read 0 percent.
- Engine running, observe the scan tool ECM GEN-F Terminal Signal parameter. The parameter should read between 5 and 99 percent.