How to Troubleshoot the i-SHIFT System

Self-diagnosis
When a problem is detected by self-diagnosis, the system does the following:
  • Turns the i-SHIFT indicator on.
  • Memorizes the DTC.
  • When the system detects a problem, the TCM shifts to fail-safe mode.
NOTE: If the malfunction indicator lamp (MIL) comes on at the same time as the i-SHIFT indicator, check for i-SHIFT system DTCs and troubleshoot them first.