Trailer Lamps Malfunction

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Diagnostic Instructions

  • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

  • Review Strategy Based Diagnosis for an overview of the diagnostic approach.

  • Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Diagnosti

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You may preview the service manual table of contents by clicking below.

Service Manual Table of Contents

Document Tags

Document Title: Trailer Lamps Malfunction

diagnostic

instructions

system

provides

information

circuit

short

ground

open

resistance

voltage

signal

park

relay

control

trailer

stop

lamp

right

connector

malfunction

description

switch

position

applied

module

applying

tail

license

operation

battery

times

brake

pedal

sensor

reference

fuse

multifunction

ignition

cycle

testing

exterior

scan

tool

verify

vehicles

commanding

turns

test

terminal

xtrailer

greater

repair

connection

remove

krpark

xafuse

block

rear

illuminate

replace

connect

fused

jumper

infinite

disconnect

kbody

appropriate

krtrailer

terminal

listed

replacement

short voltage

stop signal

signal lamp

lamp relay

lamp control

right trailer

connector ground

lamps malfunction

circuit system

ground applied

switch signal

control module

trailer park

control circuits

battery voltage

pedal position

position sensor

right stop

stop lamps

signal multifunction

multifunction switch

signal lamps

vehicles park

tool vehicles

malfunction vehicles

vehicles brake

brake lamp

lamp turns

vehicles right

right brake

right signal

ground circuit

circuit terminal

xtrailer connector

greater ignition

repair open

resistance circuit

resistance ground

ground connection

krpark lamps

verify test

test lamp

lamp illuminates

illuminates circuit

terminal ground

ground test

lamp illuminate

replace xafuse

rear test

control circuit

illuminates ignition

repair short

voltage circuit

replace xtrailer

connector test

illuminate ignition

jumper control

illuminates control

ignition remove

test infinite

infinite resistance

resistance control

resistance repair

kbody control

krtrailer stop

illuminates appropriate

appropriate control

circuit terminal

ground terminal

signal test

listed ground

trailer stop signal

stop signal lamp

signal lamp relay

park lamps control

signal lamp control

position ground applied

switch signal circuit

trailer park lamps

lamp operation right

operation right trailer

right trailer stop

lamp relay supplied

relay supplied battery

supplied battery voltage

battery voltage times

brake pedal position

pedal position sensor

lamp relay control

relay control circuits

lamp relay energized

relay energized relay

energized relay switch

relay switch contacts

stop signal fuse

signal fuse trailer

lamp control circuits

control circuits illuminates

circuits illuminates trailer

signal multifunction switch

control module references

vehicles park lamps

scan tool vehicles

lamps malfunction vehicles

vehicles brake lamp

brake lamp turns

lamp turns commanding

brake lamp scan

lamp scan tool

brake lamp stop

lamp stop lamps

stop lamps malfunction

lamp turns verify

turns verify vehicles

verify vehicles right

vehicles right brake

right brake lamp

malfunction vehicles right

vehicles right signal

right signal lamps

circuit system testing

lamps malfunctionignition exterior

malfunctionignition exterior lamps

ground circuit terminal

circuit terminal xtrailer

terminal xtrailer connector

xtrailer connector ground

greater repair open

repair open resistance

open resistance circuit

open resistance ground

resistance ground connection

remove krpark lamps

krpark lamps relay

verify test lamp

test lamp illuminates

lamp illuminates circuit

illuminates circuit terminal

circuit terminal ground

terminal ground test

ground test lamp

test lamp illuminate

replace xafuse block

rear test lamp

lamp illuminate control

illuminate control circuit

control circuit terminal

lamp illuminates ignition

greater repair short

repair short voltage

short voltage circuit

replace xtrailer connector

xtrailer connector test

connector test lamp

lamp illuminate ignition

illuminate ignition connect

fused jumper control

jumper control circuit

circuit terminal ignition

lamp illuminates control

illuminates control circuit

connector ground test

illuminate ignition remove

fused jumper wire

test infinite resistance

infinite resistance control

resistance control circuit

infinite resistance repair

resistance repair short

repair short ground

short ground circuit

illuminates ignition install

harness connector kbody

connector kbody control

kbody control module

control module ignition

ignition remove krpark

control circuit ground

lamp illuminates connect

lamp illuminates test

illuminates test replace

test replace kbody

replace kbody control

appropriate krtrailer stop

krtrailer stop signal

lamp illuminates appropriate

illuminates appropriate control

appropriate control circuit

control circuit terminal

circuit terminal listed

terminal listed xtrailer

listed xtrailer connector

connector ground terminal

right stop signal

stop signal test

signal test lamp

terminal listed ground

listed ground terminal

ignition remove appropriate

remove appropriate krtrailer