Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
- Inspect for a condition in which the throttle valves may have been held open.
- Inspect for conditions in which ice may have formed in the throttle bore.
- The throttle valves are spring loaded to a slightly open position.
- The throttle valves should not be completely closed, nor should they be open any more than the specified amount.
- The throttle valves should move to the open and closed position without binding under the normal spring pressure.
- The throttle should NOT be free to move open or closed WITHOUT spring pressure.
- The scan tool has the ability to operate Throttle Control System using the Throttle Position function located in the TAC System menu. This function will operate the throttle valve through the entire range in order to determine if the throttle body and system operate correctly.
- If the condition is intermittent, refer to Intermittent Conditions .
DTC P2108
| Step | Action | Values | Yes | No |
|---|---|---|---|---|
| Schematic Reference: Engine Controls Schematics Connector End View Reference: Engine Control Module Connector End Views or Engine Controls Connector End Views |
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| 1 | Did you perform the Diagnostic System Check - Vehicle? | - | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
| 2 | Are any other DTCs set? | - | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | Go to Step 3 |
| 3 | Replace the engine control module (ECM). Refer to Control Module References
in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement? |
- | Go to Step 4 | - |
| 4 |
|
- | Go to Step 2 | Go to Step 5 |
| 5 | Observe the Capture Info with a scan tool. Are there any DTCs that have not been diagnosed? |
- | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | System OK |