Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Does the scan tool power up? | -- | ||
2 |
Does any module on the E and C Data Line Communicate with the scan tool? | -- | Go to Step 5 | Go to Step 3 |
3 | Test the battery positive voltage circuit(s) and the ignition voltage circuit(s) of the radio for an open. Refer to Control Module References for radio schematics. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Control Module References for the applicable System Check | Go to Step 4 |
4 |
Did you find and correct the condition? | -- | Go to Control Module References for the applicable System Check | Go to Step 5 |
5 | Test the battery positive voltage circuit(s) and the ignition voltage circuit(s) of the module that does communicate with the scan tool for an open. Refer to Control Module References for the applicable schematics. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Control Module References for the applicable System Check | Go to Step 6 |
6 |
Did you find and correct the condition? | -- | Go to Control Module References for the applicable System Check | Go to Step 7 |
7 |
Did you find and correct the condition? | -- | Go to Control Module References for the applicable System Check | Go to Step 8 |
8 | Test the E and C Data Line circuit between the DLC connector, Radio, CD Player and the Instrument Cluster Head-Up Display (HUD) for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Control Module References for the applicable System Check | Go to Step 9 |
9 | Replace the module that will not communicate with the scan tool. Refer to Control Module References for the applicable replacement procedure. Is the repair complete? | -- | System OK | -- |
