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#1 |
Join Date: Jan 2022
Location: Argentina
Posts: 8
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hi dear owners, i really need your help, I made a mistake trying to jumper a dead battery in my car(1990 lt5 zr1), change my battery for a new one and my symptoms are no lcd, no cluster signs in the left side, no start ( when i turn the key the radio turns off) I thought it was the ecm and buy a Used one here from forum friend, put the good one and its the same, check continuity from the 20amp cable from the battery to the Orange cable pin and its ok, I get 12.7 volt to the pin b11 and with ignition on from pin b10( with a multimeter touching the pin with the red Pencil and the black multimeter Pencil to the battery negative)
Please I dont know Where to look, Im in Argentina and in here we dont have corvette mechanics. Im really sad because it doesnt start and getting me very frustrated I thought it was the ecm but dont Please any advice that could help me will be grateful Im sorry about my english Thanks in advance i will attach a Pic from the cluster |
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#2 |
![]() Join Date: Jul 2020
Location: Nashville TN
Posts: 314
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Keep diagnosing the electrical system. Check all fuses. Verify new battery is good (load test it). Verify your starter doesn't have a dead short.
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#3 |
![]() Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,153
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if you jumped a car with a dead battery, it is very possible you took out the CCM. I assume you have a new battery and still have dead items yet have power elsewhere
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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#4 |
Join Date: Jan 2022
Location: Argentina
Posts: 8
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Yes jeff Thats right, everything works even the antenna comes out
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