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Home >> Nissan-Datsun >> 1991 >> NX L4-1597cc 1.6L DOHC MFI (GA16DE) >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Manufacturer Code Charts >> Engine Control System >> DTC 21

DTC 21

The ECU did not detect the ignition primary signal during starting or running.

� Code 21 Ignition Signal Circuit Diagnosis:





DIAGNOSTIC CHART IMAGE

Code 21 Ignition Signal Circuit:





CIRCUIT DIAGRAM IMAGE

Connector Location:





ELECTRICAL CONNECTORS IMAGE

Final Check:





FINAL CHECK IMAGE