Testing Precautions
WARNING: This page is about a different variant/trim than selected.
A 20 series DTC will override all other DTCs stored. If no DTCs are stored, system has passed self-test. If DTCs appear, refer to SELF-TEST DIAGNOSTIC TROUBLE CODE (DTC) INDEX table under ON-BOARD SELF-TESTS. If BRAKE warning light is on or comes on intermittently, go to WARNING LIGHT SYMPTOM SEQUENCE CHART. See Figure .