Lamp out indicator fooled?

[Tuesdak]

I replaced the driver's side front turn signal lamp due to a "lamp out" warning and failed bulb months ago. Now the turn signal / flash from lock unlock has the same driver turn signal sometimes working and sometimes not working. With the turn signal on and light not working I don't get a "lamp out" warning. Turn signal works - just the front bulb doesn't light up sometimes.

Anything specific to look for with the lamp out warning not working?

 

[CharlesHoward]

Sure its not the multifunction turn signal arm/switch which commonly fails/acts erratically?

 

[Tuesdak]

Thanks for the idea.
Bulb was good so I replaced it anyway and installed it 180 from the old one. Suspect it may have been a contact issue in the socket. So far so good.

 

[Prairie Dog]

Don't know if it's related but our 03's suffered from a problematic tail light bulb holder assemblies. After some miles they cause the Lamp Out indicator to come on erratically.
If you haven't already replaced them then it's probably time. http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR0.TRC0.H0.X2003+ram+tai+light+circuit+boards&_nkw=2003+ram+tai+light+circuit+boards&_sacat=0

 

[Tuesdak]

It's back with the "Lamp out" working now. The front driver side turn signal lamp intermittently works with a fast blink now when not working. The rears are always working. The flash for keyless entry also has the one bulb out.

I am going to replace the socket. Is there anything electronic between the rear and front lamp that could cause this condition? Specifically rear lamp is working but not the front lamp.

 

[MLee]

How bout applying some Dielectric grease to the bulb contacts. See if that helps the continuity. May be corrosion in side the socket.

 

[Tuesdak]

Pulled the bulb again. Found arcing on one of the new bulb contacts. The socket has a plug on it so it is an easy part swap without cutting wires. Problem = bad socket. Thus the circuit would conduct enough to "fool" the lamp out indicator, but, fail to have enough current to light the lamp.