I HAVE TWO TROUBLE CODES 1684 AND 0340

2000 Dodge Neon

Tiny

Bobo

July, 23, 2006 AT 8:08 PM

I have two trouble codes, 1684 and 0340.
Can someone help to what they mean.

Thanks.

p.S.
Thanks for the info on the spark-plugs

Bobo

FOUND 5379 RELATED QUESTIONS

2 Answers

Tiny

Mikeybdman

July, 23, 2006 AT 8:18 PM

P1684 just means the computer memory has been cleared lately. It does not indicatoe a problem.

SYMPTOM
P0340 - NO CAM SIGNAL AT PCM

WHEN MONITORED
During engine cranking, after 32 crank position signals.

SET CONDITION
No Camshaft Position Sensor signal is present with crank signal.

POSSIBLE CAUSES

Target magnet defective
Sensor ground circuit open
Wiring harness intermittent defect
Stray signal from the crankshaft position sensor
Irregular LAB scope pattern of CMP signal
CMP signal circuit open
CMP signal circuit shorted to ground
CMP signal circuit shorted to sensor ground circuit
8 volt supply circuit open
8 volt supply circuit shorted to ground
8 volt supply shorted to sensor ground circuit
CMP sensor defective
PCM defective
PCM defective (8 volt supply)
8 volt supply circuit shorted to voltage
CMP signal circuit shorted to 8 volt supply circuit
CMP signal circuit shorted to voltage

Tiny

KarenCaren

March, 2, 2009 AT 8:09 PM

That code will give you some work to do. Thats how many you should check to get that code gone.

Please login or register to post a reply.

Spark Plug and Wire Replacement Ford Mustang
Spark Plug Replacement Honda Element
Spark Plug Replacement Toyota Tacoma
Spark Plug Replacement Toyota Corolla 2000-20
Spark Plug Replacement Mercedes Benz ML500
Spark Plug Replacement Ford Explorer 4.6L V8