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

dtcb

left

signal

circuit

short

battery

ground

open

right

information

resistance

voltage

switch

control

rear

lamp

multifunction

description

ignition

module

instrument

cluster

indicator

conditions

detects

testing

test

terminal

reference

exterior

connector

scan

tool

appropriate

eturn

socket

greater

repair

turns

disconnect

harness

kbody

infinite

replace

replacement

short ground

right signal

open resistance

short voltage

signal switch

signal lamp

signal multifunction

multifunction switch

signal lamps

control module

signal indicator

detects open

signal control

control circuit

ground circuit

test lamp

eturn signal

circuit socket

socket terminal

terminal ground

repair open

resistance circuit

lamp turns

lamp ignition

ignition disconnect

harness connector

connector kbody

kbody control

infinite resistance

repair short

replace kbody

module test

circuit short ground

signal circuit open

right signal circuit

tail lamp assembly

signal multifunction switch

detects open resistance

open resistance signal

signal control circuit

signal ground circuit

ground circuit dtcbthe

detects short ground

open resistance right

resistance right signal

right signal control

signal indicator instrument

indicator instrument cluster

instrument cluster flashes

cluster flashes rapidly

signal lamp bulb

control module references

dtcbignition exterior lamps

exterior lamps remove

lamps remove appropriate

remove appropriate eturn

appropriate eturn signal

eturn signal lamp

signal repeater lamp

appropriate ground circuit

ground circuit socket

circuit socket terminal

socket terminal 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 socket

terminal 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

control circuit terminal

circuit terminal ground

greater repair short

repair short voltage

short voltage circuit

lamp turns test

turns test replace