Test orange wire for 5 volts, if volts less than 4.5 repair open in circuit.
3. Turn� ignition� off.� Ensure� CMP� sensor� connector� is� still� disconnected.� Using� an� ohmmeter, � check� resistance� between� CMP� sensor� connector, � 5 volt� supply� circuit� (Orange� wire)� and� signal� circuit� (Tan/Yellow� wire).
If� resistance� is� 5� ohms� or� more, � go� to� next� step.� If� resistance� is� less� than� 5� ohms, � repair� 5 volt� supply� circuit� for� short� to� signal� circuit.� Perform� TEST� VER 5A.
4. Ensure� ignition� is� off.� Ensure� CMP� sensor� connector� is� still� disconnected.� Turn� ignition� on, � with� engine� off.� Using� a� voltmeter, � check� voltage� on� CMP� sensor� connector, � signal� circuit� (Tan/Yellow� wire).� If� voltage� is
less� than� 4.5� volts, � go� to� next� step.� If� voltage� is� 4.5 5.5� volts, � go� to� step� 9).� If� voltage� is� more� than� 5.5� volts, � repair� signal� circuit� for� short� to� voltage.� Perform� TEST� VER 5A.
5. Turn� ignition� off.� Ensure� CMP� sensor� connector� is� still� disconnected.� Disconnect� PCM� connectors.� PCM� is� located� in� engine� compartment.� See� PCM� LOCATION� table� under� SYSTEM� DIAGNOSTICS.� Clean
and/or� repair� connectors� as� necessary.� Using� an� ohmmeter, � check� resistance� of� CMP� sensor� signal� circuit� (Tan/Yellow� wire)� between� CMP� sensor� connector� and� PCM.� If� resistance� is� less� than� 5� ohms, � go� to� next
step.� If� resistance� is� 5� ohms� or� more, � repair� open� signal� circuit.� Perform� TEST� VER 5A.
6. Turn� ignition� off.� Ensure� CMP� sensor� and� PCM� connectors� are� still� disconnected.� Using� ohmmeter, � check� resistance� between� ground� and� CMP� sensor� connector, � signal� circuit� (Tan/Yellow� wire).� If� resistance� is� 5
ohms� or� more, � go� to� next� step.� If� resistance� is� less� than� 5� ohms, � repair� signal� circuit� for� short� to� ground.� Perform� TEST� VER 5A.
7. Ensure� ignition� is� off.� Ensure� CMP� sensor� and� PCM� connectors� are� still� disconnected.� Using� ohmmeter, � check� resistance� between� CMP� sensor� connector, � signal� circuit� (Tan/Yellow� wire)� and� sensor� ground
circuit� (Black/Light� Blue� wire).� If� resistance� is� 5� ohms� or� more, � go� to� next� step.� If� resistance� is� less� than� 5� ohms, � repair� signal� circuit� for� short� to� sensor� ground� circuit.� Perform� TEST� VER 5A.
8. At� this� time, � PCM� is� assumed� to� be� defective.� Replace� PCM.� Perform� TEST� VER 5A.
9. Ensure� ignition� is� off.� Ensure� CMP� sensor� connector� is� still� disconnected.� Using� an� ohmmeter, � check� resistance� between� ground� and� CMP� sensor� connector, � sensor� ground� circuit� (Black/Light� Blue� wire).� If
resistance� is� less� than� 5� ohms, � go� to� next� step.� If� resistance� is� 5� ohms� or� more, � go� to� step� 12).
10. Ensure� ignition� is� off.� Ensure� CMP� sensor� connector� is� still� disconnected.� Remove� CMP� sensor.� See Fig.� 28� or Fig.� 29�.� Inspect� tone� wheel/flexplate� for� physical� damage.� Ensure� tone� wheel/flexplate� rotates� when
engine� is� cranked.� If� tone� wheel/flexplate� is� okay, � go� to� next� step.� If� tone� wheel/flexplate� is� damaged, � repair� or� replace� as� necessary.
11. At� this� time, � CMP� sensor� is� assumed� to� be� defective.� Replace� CMP� sensor.� Perform� TEST� VER 5A.
12. Turn� ignition� off.� Ensure� CMP� sensor� connector� is� still� disconnected.� Disconnect� PCM� connectors.� PCM� is� located� in� engine� compartment.� See� PCM� LOCATION� table� under� SYSTEM� DIAGNOSTICS.� Clean
and/or� repair� connectors� as� necessary.� Using� an� ohmmeter, � check� resistance� of� CMP� sensor� ground� circuit� (Black/Light� Blue� wire)� between� CMP� sensor� connector� and� PCM.� If� resistance� is� less� than� 5� ohms, � go
to� next� step.� If� resistance� is� 5� ohms� or� more, � repair� open� sensor� ground� circuit.� Perform� TEST� VER 5A.
13. At� this� time, � PCM� is� assumed� to� be� defective.� Replace� PCM.� Perform� TEST� VER 5A.
Test ver 5a is using a labscope so if you can't get it rnning by this time tow to a repair shop it still may not be your pcm. Also check for blown fusesin power dist box and check fuse 19 and 6 as well as automatic shutdown relay as that may be the problem as well.
Wednesday, October 14th, 2020 AT 2:49 PM
(Merged)