DTC B3948 or B3949

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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.

DTC Descr

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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: DTC B3948 or B3949

diagnostic

instructions

system

vehicle

dtcb

left

signal

circuit

short

battery

ground

open

right

information

resistance

voltage

control

front

outside

rearview

mirror

driver

passenger

description

switch

ignition

module

instrument

cluster

indicator

conditions

detects

reference

exterior

connector

component

testing

scan

tool

disconnect

harness

appropriate

listed

elfturn

lamp

aaoutside

test

terminal

terminal

greater

repair

turns

kbody

infinite

replace

erfturn

aboutside

replacement

short ground

right signal

open resistance

short voltage

signal control

signal lamps

control module

signal indicator

detects short

control circuit

harness connector

elfturn signal

signal lamp

aaoutside rearview

ground circuit

circuit terminal

terminal listed

listed ground

driver terminal

repair open

resistance circuit

test lamp

lamp turns

lamp ignition

ignition disconnect

connector kbody

kbody control

infinite resistance

repair short

replace kbody

module test

erfturn signal

aboutside rearview

passenger terminal

circuit short ground

signal circuit open

right signal circuit

signal multifunction switch

detects short voltage

short voltage open

voltage open resistance

signal control circuit

control circuit dtcbthe

detects short ground

right signal control

signal indicator instrument

indicator instrument cluster

instrument cluster flashes

cluster flashes rapidly

driver information center

information center displays

dtcbignition exterior lamps

exterior lamps disconnect

lamps disconnect harness

disconnect harness connector

harness connector appropriate

connector appropriate component

appropriate component listed

component listed min

listed min vehicle

min vehicle systems

vehicle systems power

elfturn signal lamp

aaoutside rearview mirror

appropriate ground circuit

ground circuit terminal

circuit terminal listed

terminal listed ground

greater repair open

repair open resistance

open resistance circuit

open resistance ground

resistance ground connection

connect test lamp

test lamp appropriate

lamp appropriate control

appropriate control circuit

control circuit terminal

listed ground ignition

verify test lamp

test lamp turns

lamp turns commanding

signal lamp scan

lamp scan tool

scan tool test

tool test lamp

test lamp ignition

lamp ignition disconnect

harness connector kbody

connector kbody control

kbody control module

test infinite resistance

infinite resistance control

resistance control circuit

control circuit ground

infinite resistance repair

resistance repair short

repair short ground

short ground circuit

replace kbody control

control module test

module test lamp

control module ignition

circuit terminal ground

greater repair short

repair short voltage

short voltage circuit

lamp turns test

turns test replace

erfturn signal lamp

aboutside rearview mirror

right signal lamp