Hard Failures
WARNING: This page is about a different variant/trim than selected.
Hard failures cause Malfunction Indicator Light (MIL) to come on and trouble codes to be set in Powertrain Control Module (PCM) memory. Trouble code remains until problem is repaired. To retrieve trouble codes, see READING SELF-DIAGNOSTIC CODES. Use circuit tests to determine cause of malfunction.
If a sensor fails, PCM will use a substitute value in its calculations to continue engine operation. PCM can estimate failed sensor values based on feedback from working sensors. In this condition, known as Limited Operating Strategy (LOS), vehicle runs but driveability will not be optimum.