Component Testing
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Static Test
- Ignition OFF.
- Disconnect the harness connector at the appropriate Q17 Fuel Injector.
- Test for 0. 2 - 1. 5 Ω between the supply terminal 1 and the control terminal 2.
- If not between 0. 2 - 1. 5 Ω
Replace the appropriate Q17 Fuel Injector.
- Go to next step: If between 0. 2 - 1. 5 Ω
- If not between 0. 2 - 1. 5 Ω
- Test for infinite resistance between each terminal and the injector housing/case.
- If less than infinite resistance
Replace the appropriate Q17 Fuel Injector.
- Go to next step: If infinite resistance
- If less than infinite resistance
- All OK
NOTE:
The DMM and test leads must be calibrated to 0 Ω in order to prevent misdiagnosis.