Diagnostic Procedure

DIAGNOSTIC PROCEDURE FOR DTC 12

Schematic View Of The Crankshaft Position (NE) And Camshaft Position (G1, G2) Sensors:

1. CHECK RESISTANCE OF EACH PICKUP COIL IN DISTRIBUTOR.
^ If OK proceed to step 2.
^ If not OK replace distributor.

2. CHECK FOR OPEN AND SHORT IN HARNESS AND CONNECTOR BETWEEN ENGINE CONTROL MODULE AND DISTRIBUTOR.
^ If OK proceed to step 3.
^ If not OK repair or replace harness or connector.

3. CHECK AIR GAP.
^ If OK check and replace ECM.
^ If not OK replace distributor.