Express 2500 2WD V8-4.8L VIN V (2004)
Steps 27-28
The number below refers to the step number on the diagnostic table.
9. Listen for an audible click when the RR DEFOG relay operates. Command both the ON and OFF states of the RR DEFOG relay. Repeat the
commands as necessary.
Temperature Displays SC or OC - Mirrors
MIRRORS - TEMPERATURE DISPLAYS SC OR OC
AMBIENT AIR TEMPERATURE SENSOR RESISTANCE TABLE