 Dash lights are out?, ??? |
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| steuspeed |
 Apr 1 2024, 09:15 PM
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#1
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Senior Member  Group: Members Posts: 1,005 Joined: 12-July 11 From: Portland, Oregon Member No.: 13,308 Region Association: Pacific Northwest  |
All of my lights are working on the car except my dash lights. I didn't notice until it started getting dark last night. Checked all the fuses and wiggled them all. I wiggled the dash light dimmer a bunch of times. I'm thinking it's the dimmer switch since they are all out. Any ideas???
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| emerygt350 |
Apr 2 2024, 05:12 AM
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#2
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Advanced Member Group: Members Posts: 2,081 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
I had that dimmer go on mine. Although mine misbehaved for a little while before it gave out. I just bypassed the dimmer. That switch is a poorly over engineered POS.
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| steuspeed |
Apr 2 2024, 06:06 AM
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#3
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Senior Member Group: Members Posts: 1,005 Joined: 12-July 11 From: Portland, Oregon Member No.: 13,308 Region Association: Pacific Northwest |
A few turns and it always came back. This time it is not working at all.
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| 76-914 |
Apr 2 2024, 07:28 AM
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#4
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,494 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California 
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Look at the rear of the ignition switch. There is a coiled spring wire that controls the ohms in that circuit. If it is broken you need to replace the switch or wire them up directly. I suspect that you could install a separate variable resistor to control that circuit if you changed to LED's but I'd check with an EE 1st.
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| Superhawk996 |
Apr 2 2024, 08:37 AM
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#5
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914 Guru Group: Members Posts: 5,769 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch
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QUOTE(emerygt350 @ Apr 2 2024, 07:12 AM)  That switch is a poorly over engineered POS. 50 year old part fails - POS (IMG:style_emoticons/default/lol-2.gif) Wait till all these”modern” cars are 50 years old and the silicon and PCBs are failing (IMG:style_emoticons/default/av-943.gif) The dimmer is just a rheostat - if dirty or corroded, DeOxit will work wonders. The switch can be opened up and repaired if you are careful and patient. If the actual rheostat slider has mechanically worn out and won’t stay in contact with the wire wound element, time for a new (used) switch. Here’s link to disassembly / internals. https://www.pelicanparts.com/techarticles/9...lamp_switch.htm |
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| dr914@autoatlanta.com |
Apr 2 2024, 08:56 AM
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#6
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914 Guru Group: Members Posts: 7,832 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
Clean the rheostat wire spring and contact finger
QUOTE(steuspeed @ Apr 1 2024, 08:15 PM) All of my lights are working on the car except my dash lights. I didn't notice until it started getting dark last night. Checked all the fuses and wiggled them all. I wiggled the dash light dimmer a bunch of times. I'm thinking it's the dimmer switch since they are all out. Any ideas??? |
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