DTC 31, LCD Data CKT Shorted To Battery Or CCM Internal Open: Notes

LCD data circuit carries the 160-bit data stream containing the desired states of LCD panel segments. LCD data circuit is brought low by CCM for about 80 milliseconds during CCM power-up. CCM takes samples of LCD data during the last 40 milliseconds to ensure circuit is responding to CCM command.

DTC 31 will set when CCM senses high samples on LCD data circuit when samples should be low during CCM power-up.

When DTC 31 is set, SYS will flash. DTC 31 will clear when CCM does not sense high samples on LCD data circuit during CCM power-up.