DTC 12

CODE 12 - G, NE SIGNAL (NO. 1)

Circuit Description

The IIA (Distributor) in the Engine Control System contains two pickup coils (G and NE).
The G signals inform the ECM of the standard crankshaft angle.
The NE signals inform the ECM of the crankshaft angle and the engine speed.




Detecting Condition




Inspection Using Oscilloscope

- During cranking or idling, check between terminals G1 and G(-), NE(+) and NE(-) of engine control module.

NOTE: The correct waveforms appear as shown in the illustration.




Diagnostic Chart




Wiring Diagram

Step 1:

Step 2:

Step 3:

Inspection Procedure