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sprinkles08
sprinkles08, Chrysler/Dodge/Jeep master tech
Category: Dodge
Satisfied Customers: 21586
Experience:  ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist
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Dodge ram: 2003 ram 2500.Turn signals don't work.When lights

Customer Question

2003 ram 2500.Turn signals don't work.When lights are on,only right left low lamp burns.When hi beam is switched on,left hi beam comes on and left low goes out.At no time is there two lamps burning at same time.
Submitted: 1 year ago.
Category: Dodge
Expert:  sprinkles08 replied 1 year ago.
Hello and welcome to JustAnswer!
The problem could be wiring or the front control module but you most likely have an internal failure in the integrated power module, the fuse box under the hood.
This is most likely being caused by a poor power feed to the FCM, not uncommon. The FCM receives four power feeds through the IPM circuit board, corrosion on the circuit board is what causes what you're having.
What you'll need to do is remove the FCM, locate pins 3, 4, 6 an 7 and then their mates on the IPM. Using an incandescent test light or (preferred) a headlamp or fog lamp bulb see if these terminals light the bulb brightly. If not and fuses are good then the IPM can be condemned.

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