TGE/Troubleshooting 2JZ-GE — Circuit Inspection Dtc 12 G Ne Signal Circuit (No.1) Circuit Description, page 29

CIRCUIT INSPECTION

DTC 12 G NE Signal Circuit (No.1)

CIRCUIT DESCRIPTION

The distributor in the Engine Control System contains 3 pick–up coils (G1, G2 and NE).
The G1, G2 signals inform the ECM of the standard crankshaft angle.
The NE signals inform the ECM of the crankshaft angle and the engine speed.

DTC No. | Diagnostic Trouble Code Detecting Condition | Trouble Area

12 | No "NE" or "G1" and "G2" signal to ECM for 2 sec. or more after cranking | • Open or short in NE, G circuit
• Distributor
• Open or short in STA circuit
• ECM

Open in "G ±" circuit

WIRING DIAGRAM

Distributor

G1 2          R          26 (E9) G1

G2 3          W          25 (E9) G2

NE 1          B          27 (E9) NE

G ⊖ 4          G          7 (E9) G⊖

Engine Control Module

E1

R6543