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Home >> Toyota >> 1994 >> Pickup Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 4-CYL >> Trouble Code Charts >> DTC 12, 13 - Rpm Signal

DTC 12, 13 - Rpm Signal

DTC 12 is caused by loss of "NE" signal from distributor to ECM for at least 2 seconds after starter signal (STA) is received at ECM. Check distributor and ignition system components. See information in appropriate articles listed below:

Ensure starter signal (STA) exists at ECM. See DTC 43.

DTC 13 is caused by loss of "NE" signal from distributor to ECM when engine RPM exceeds 1500 RPM. Check distributor and ignition system components. See articles listed below:

NOTE: Diagnostic charts for Codes 12 and 13 are not available from manufacturer.
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