DTC 25, Courtesy Light Relay Coil Circuit Open Or Shorted To Ground: Notes

CCM completes courtesy light control circuit when a courtesy lights on request is received from door lock switches and, door and hatch ajar switches. CCM grounds courtesy light control circuit to energize relay coil.

DTC 25 will set when CCM senses low voltage in courtesy light control circuit when CCM is not attempting to energize courtesy light relay coil.

When DTC 25 is set, SYS will flash. DTC 25 will clear when CCM attempts to energize courtesy light relay, or CCM senses high voltage in courtesy light control circuit CCM is not attempting to energize courtesy light relay coil.