Possible causes – Faulty Diagnostic Module Tank Leakage (DMTL)– Diagnostic Module Tank Leakage harness is open or shorted– Diagnostic Module Tank Leakage circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1403 HYUNDAI Description
Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1403 Information for specific makes P1403 BUICKP1403 CADILLACP1403 CHEVROLETP1403 DODGEP1403 FORDP1403 GMCP1403 HYUNDAI
P1403 DODGE – No ASD Relay Output Voltage at PCM
P1403 FORD – Differential Pressure Feedback Electronic Sensor Hoses Reversed
P1403 GMC – Exhaust Gas Recirculation System Valve 1
P1403 CADILLAC – Exhaust Gas Recirculation System Valve 1
P1403 CHEVROLET – Exhaust Gas Recirculation System Valve 1
P1403 BUICK – Exhaust Gas Recirculation System Valve 1