# - Radio Back Lighting Stays On After Key Off / Dead Battery / TCCM Repeat Failure - (Oct 2, 2017)

Subject:
Radio Back Lighting Stays On After Key Off / Dead Battery / TCCM Repeat Failure

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Chevrolet

Silverado 1500

2014

All

All

All

All

Chevrolet

Silverado

2015-2018

All

All

All

A...

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Document Title: # - Radio Back Lighting Stays On After Key Off / Dead Battery / TCCM Repeat Failure - (Oct 2, 2017)

tccm

model

condition

ignition

voltage

crank

fuse

block

caused

spike

solenoid

relay

onto

terminal

important

circuit

diode

coil

striped

connected

positive

ground

voltage spike

striped diode

diode connected

positive terminal

connected ground

crank ignition buss

caused aftermarket accessory

transmitted onto crank

important striped diode

striped diode connected

diode connected positive

connected positive terminal

positive terminal coil

diode connected ground

sure insulate diode

insulate diode heat

diode heat shrink

heat shrink tubing

shrink tubing installing