Toyota Tundra Service Manual > Sfi System: Exhaust Gas Recirculation Control Circuit (P0403)
DESCRIPTION Refer to DTC P0401 (See page ). DTC No. DTC Detection Condition Trouble Area P0403 Open or short in EGR valve circuit (1 trip detection logic) Open or short in EGR valve circuit EGR valve assembly ECM HINT: DTC P0403 is set when the ignition switch is in the ON position. MONITOR DESCRIPT ...