Bulletin Information

Bulletin Title: #21-NA-220 - Loss of Power, Malfunction Indicator Lamp (MIL) Illuminated, Gauges Inoperative and/or Multiple Warning Lights/Messages Displayed on Driver Information Center (DIC) - Multiple DTCs Set - (Sep 8, 2023)
Bulletin Type: Technical
Applies To: Vehicle DTC Information / Displays and Gauges / Data Communications / Power Outlets / Wiring Systems and Power Management / Engine Controls and Fuel / Electrical Component Locator and Harness Routing Views / Electrical Component and Inline Harness Connector End Views / Wire and Connector Repair

#21-NA-220 - Loss of Power, Malfunction Indicator Lamp (MIL) Illuminated, Gauges Inoperative and/or Multiple Warning Lights/Messages Displayed on Driver Information Center (DIC) - Multiple DTCs Set - (Sep 8, 2023)

Subject:
Loss of Power, Malfunction Indicator Lamp (MIL) Illuminated, Gauges Inoperative and/or Multiple Warning Lights/Messages Displayed on Driver Information Center (DIC) – Multiple DTCs Set

Brand:

Model:

Model Year:

VIN:

Engine:

Transmission:

from

to

from

to

Chevrolet...

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Document Tags

Document Title: #21-NA-220 - Loss of Power, Malfunction Indicator Lamp (MIL) Illuminated, Gauges Inoperative and/or Multiple Warning Lights/Messages Displayed on Driver Information Center (DIC) - Multiple DTCs Set - (Sep 8, 2023)

power

multiple

information

model

engine

condition

following

control

module

resistance

circuits

ebcm

pscm

version

date

click

size

battery

verify

hsbus

across

electrical

connector

terminal

tension

damage

apply

dielectric

grease

replace

terminated

leads

service

laws

applicable

bulletin

disconnect

harness

surge

tank

fastener

wiring

connect

vehicle

labor

operation

repair

coverage

section

revised

added

verify resistance

resistance hsbus

hsbus circuits

circuits across

grease terminals

wiring harness

multiple warning lights

warning lights messages

involved region country

verify resistance hsbus

resistance hsbus circuits

hsbus circuits across

circuits across splitting

across splitting circuit

dielectric grease terminals

engine harness electrical

harness electrical connector

wiring harness clip

reposition surge tank

click size disconnect

click size inspect

size inspect terminal

inspect terminal tension

tension damage wiring

damage wiring harness

wiring harness circuits

improper terminal tension

terminal tension found

tension found replace

found replace terminals

replace terminals terminated

terminals terminated leads

pscm electrical connector