Circuit/System Testing
- With the ignition ON, install a scan tool.
- Activate and release each of the DIC switches.
- With the scan tool observe the DIC information switch parameters in the IPC scan tool Data List
- If the test lamp does not illuminate, check the DIC switch ignition 1 voltage circuit for an open or a high resistance.
- Connect a test lamp between the DIC switch ignition 1 voltage circuit and the DIC switch ground circuit.
- If the test lamp does not illuminate, check the DIC switch ground circuit for an open or a high resistance.
- If the test lamp does illuminate, check the DIC switch signal circuits for an open or a high resistance
- If the DIC switch signal circuits tests normal, replace the DIC switch.