Check For Intermittent Problems
WARNING: This page is about a different variant/trim than selected.
HINT:
Inspect the vehicle's ECM using check mode. Intermittent problems are easier to detect with Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.
- Clear the DTCs.
- Switch the ECM from normal mode to check mode using Techstream (See CHECK MODE PROCEDURE ).
- Perform a simulation test (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS ).
- Check and wiggle the harness(es), connector(s) and terminal(s) (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS ).