CHECK FOR INTERMITTENT PROBLEMS
Perform a simulation test.
For the simulation test, reproduce the driving conditions that were present when the problem occurred. These conditions should be based on the customer's comments and freeze frame data that is recorded with DTCs, such as the battery voltage, oil temperature, real motor angle value and motor terminal voltage.
Check the connector(s) and terminal(s).
Wiggle the harness and connector(s).
Heat or cool suspected parts.