Lights and wiring problems!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jtench94 · 01-14-2013, 03:44 PM

Just bought an 82 c30 crew cab dually, dash lights weren't working, I swapped out guage cluster from an 84 and replaced headlight switch...my dash lights still don't work(gauges do still work)...AND NOW...the cab lights aren't working and high beams flicker every now and then... One of the previous owners hacked the wiring to add a CD player and replaced the steering column with a 8?-95 column? so I'm not sure what wires go where or where to even start...
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**hatzie** · 01-14-2013, 05:39 PM

You'll need the 1982 wiring diagrams. Look in the back sections of the 1982 service manual.
The flickering lights are a column dimmer issue.
The 87 & 88 wiring manuals have the T400 CK diagrams that might include the correct pinouts for the harmonica connector on your column.

motornut · 01-15-2013, 08:41 AM

depending on the hack
might check where the grounds go to one
i've seen the cluster light wire (grey)used for power to the radio too
or to the memory
or even using the wrong illumination/dimmer wire

01-14-2013, 03:44 PM	#1
jtench94 Registered User Join Date: Jul 2012 Location: Luling, Texas Posts: 1	Lights and wiring problems!!! Just bought an 82 c30 crew cab dually, dash lights weren't working, I swapped out guage cluster from an 84 and replaced headlight switch...my dash lights still don't work(gauges do still work)...AND NOW...the cab lights aren't working and high beams flicker every now and then... One of the previous owners hacked the wiring to add a CD player and replaced the steering column with a 8?-95 column? so I'm not sure what wires go where or where to even start... Posted via Mobile Device Posted via Mobile Device

01-14-2013, 05:39 PM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 5,014	Re: Lights and wiring problems!!! You'll need the 1982 wiring diagrams. Look in the back sections of the 1982 service manual. The flickering lights are a column dimmer issue. The 87 & 88 wiring manuals have the T400 CK diagrams that might include the correct pinouts for the harmonica connector on your column. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

01-15-2013, 08:41 AM	#3
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Lights and wiring problems!!! depending on the hack might check where the grounds go to one i've seen the cluster light wire (grey)used for power to the radio too or to the memory or even using the wrong illumination/dimmer wire Attached Images __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350



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