Titan 4WD V8-5.6L (VK56DE) (2006)
Diagnostic Procedure For Optical Sensor (Step 5)
SYMPTOM: Optical sensor circuit is open or shorted. Using the CONSULT-II, DTC B257F or B2580 is displayed. Without a CONSULT-II code 50
or 52 is indicated on front air control as a result of conducting self-diagnosis.