DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P1423

COLD START CONTROL

(Cold start emission reduction strategy monitoring)

ECM does not control fuel injection timing properly when engine is started with the engine cold.

P1424

COLD START CONTROL

(Cold start emission reduction strategy monitoring)

ECM does not control fuel injection quantity properly when engine is started with the engine cold.