2009款别克昂科雷原厂车身系统喇叭部分维修手册(可编辑)

2009款别克昂科雷原厂车身系统喇叭部分维修手册（可编

辑）

2009款别克昂科雷原厂车身系统喇叭部分维修手册

Horns 4-1

Body Systems

Horns

Specications

SIE-ID 1889233 Owner kyoukh01 LMD 15-mar-2007 LMB amille01

Fastener Tightening Specications

Specication

Application

Metric English

Cruise Control Switch Bolt 25 N?m 22 lb in

Horn Bracket Bolt 9 N?m 80 lb in

Radio Control Switch Bolt 25 N?m 22 lb in

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

4-2 Horns

Schematic and Routing Diagrams

SIE-ID 2087799 Owner pluber01 LMD 28-mar-2008 LMB dtrocz01

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

Horns 4-3

9

6

1

8

7

2

s

c

i

t

a

m

e

h

c

S

n

r

o

H

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

4-4 Horns

Diagnostic Information and Procedures

Diagnostic Starting Point - Horns

SIE-ID 1556704 Owner mgastm01 LMD 25-jul-2006 LMB tdedvu01

Begin the system diagnosis with the Diagnostic System

Check - Vehicle on page 6-60 The Diagnostic System

Check will provide the following information

The identication of the control modules which

command the system

The ability of the control modules to communicate

through the serial data circuit

The identication of any stored diagnostic trouble

codes DTCs and their status

The use of the Diagnostic System Check will identify

the correct procedure for diagnosing the system

and where the procedure is located

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

Horns 4-5

DTC B2750

SIE-ID 1873855 Owner tspaul01 LMD 12-jun-2007 LMB tspaul01

Diagnostic Instructions DTC Descriptor

Perform the Diagnostic System Check - Vehicle DTC B2750 00 Horn Relay Coil Circuit

on page 6-60 prior to using this diagnostic

procedure

Review Strategy Based Diagnosis on page 6-57 for Diagnostic Fault Information

an overview of the diagnostic approach

Diagnostic Procedure Instructions on page 6-58

provides an overview of each diagnostic category

Short to OpenHigh Short to Signal

Circuit Ground Resistance Voltage Performance

Horn Relay B 2 2

Horn Relay Control B2750 00 B2750 00 B2750 00

Horn Control 2 2 1

Horn Switch Ground 2 2

Horn Ground 2 2

1 Horn Always On

2 Horn Inoperative

CircuitSystem Description Reference Information

The body control module BCM controls the horn Schematic Reference relay by grounding the control circuit of the horn relay

coil energizing the relay When the horn relay is Horn Schematics on page 4-2

energized the horn relay contacts close applying

Connector End View Reference

voltage through the horn fuse and the horn control

circuit to the horns Component Connector End Views on page 11-211

Description and Operation

Conditions for Running the DTC Horns System Description and Operation on page 4-12

When the horn output is actively being requested by Electrical Information Reference

the BCM

Circuit Testing on page 11-456

Conditions for Setting the DTC

Connector Repairs on page 11-478

The BCM detects a short to ground open or short to Testing for Intermittent Conditions and Poor

voltage in the horn relay control circuit for Connections on page 11-460

approximately 125 milliseconds Wiring Repairs on page 11-465

Scan Tool Reference

Action Taken When the DTC Sets

Control Module References on page 6-1 for scan tool

The BCM disables the output to the horn relay until information the next ignition cycle

CircuitSystem Verication

Conditions for Clearing the DTC Command the horns ON and OFF with the scan tool

The DTC clears when the fault is no longer The horns should turn ON and OFF when changing

detected between the commanded states

The current DTC will become history when the

request for the output is removed

The history DTC will clear after 50 consecutive

fault-free ignition cycles have occurred

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

4-6 Horns

CircuitSystem Testing Symptoms - Horns

1 Ignition OFF disconnect the HORN relay SIE-ID 1875165 Owner

tspaul01 LMD 01-dec-2006 LMB tdedvu01

2 Ignition ON verify a test lamp illuminates between Important The following steps must be completed

the B circuit terminal 85 and ground before using the symptom tables If the test lamp does not illuminate test the B 1 Perform Diagnostic System Check - Vehicle on

circuit for a short to ground or an openhigh page 6-60 before using the symptom tables in

resistance If the circuit fuse is open test order to verify that all of the following are true

the control circuit terminal 87 for a short to

There are no DTCs set

ground If all circuits test normal test or

replace the HORN relay The control modules can communicate via the

serial data link

3 Connect a test lamp between the control circuit

terminal 86 and the B circuit terminal 85 2 Review the system operation in order to familiarize

yourself with the system functions Refer to Horns

4 Command the horns ON and OFF with a scan

System Description and Operation on page 4-12

tool The test lamp should turn ON and OFF

when changing between the commanded states

VisualPhysical Inspection

If the test lamp is always OFF test the

control circuit for a short to voltage or an

Inspect for aftermarket devices which could affect

openhigh resistance If the circuit tests normal the operation of the horn system Refer to

replace the BCM Checking Aftermarket Accessories on page 11-455 If the test lamp is always ON test the control Inspect the easily accessible or visible system

circuit for a short to ground If the circuit tests components for obvious damage or conditions

normal replace the BCM which could cause the symptom

5 If all circuits test normal test or replace the Perform the following if a horn buzzes or has a

HORN relay harsh tone

Inspect for debris in the joint where the horn

Component Testing fastens to the vehicle

1 Ignition OFF disconnect the horn relay Test the torque of the horn mounting

hardware The horn mounting hardware

2 Test for 60–180 ohms between terminals 85

should be tightened to a torque of

and 86

10 N?m 7 lb ft

If not within the specied range replace

the relay

Intermittent

3 Test for innite resistance between the following

terminals Faulty electrical connections or wiring may be the

cause of intermittent conditions Refer to Testing for

30 and 86 Intermittent Conditions and Poor Connections on

30 and 87 page 11-460

30 and 85

85 and 87 Symptom List

If not the specied value replace the relay

Refer to a symptom diagnostic procedure Horns

Malfunction on page 4-6 in order to diagnose the

4 Install a 30-amp fused jumper wire between relay

symptom

terminal 85 and 12 volts Install a jumper wire

between relay terminal 86 and ground Test

for less than 2 ohms between terminals 30 and 87 Horns Malfunction If greater than the specied range replace SIE-ID 1873856 Owner tspaul01 LMD 28-feb-2008 LMB tspaul01

the relay

Diagnostic Instructions

Repair Instructions Perform the Diagnostic System Check - Vehicle Perform the Diagnostic Repair Verication on page 6-86 on page 6-60 prior to using this diagnostic

after completing the diagnostic procedure procedure

Relay Replacement Attached to Wire Harness Review Strategy Based Diagnosis on page 6-57 for

on page 11-521 or Relay Replacement Within an an overview of the diagnostic approach

Electrical Center on page 11-522 Diagnostic Procedure Instructions on page 6-58

Control Module References on page 6-1 for BCM

provides an overview of each diagnostic category

replacement setup and programming

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

Horns 4-7

Diagnostic Fault Information

Short to OpenHigh Short to Signal

Circuit Ground Resistance Voltage Performance

Horn Relay B 2 2

Horn Relay Control B2750 00 B2750 00 B2750 00

Horn Control 2 2 1

Horn Switch Ground 2 2

Horn Ground 2 2

1 Horn Always On

2 Horn Inoperative

CircuitSystem Description CircuitSystem Verication

Battery positive voltage is applied at all times to the 1 Ignition ON press and release the steering wheel

horn relay coil and the horn relay switch Pressing the horn pad The horns should sound and emit a

horn switch applies ground through the switch clear and even tone only when the horn pad

contacts and the horn relay control circuit to the coil is pressed side of the relay energizing the relay Battery If the horns do not sound when the horn pad

voltage is then applied through the switch side of the is pressed or continues sounding after the

relay the horn fuse and the horn control circuit to horn pad is released refer to Horn Switch

the horns The body control module BCM may also Circuit Test

apply ground to the horn relay control circuit as

If the sound emitted from the horns are not

described above The horns sound as long as ground

clear and even refer to Horn – Poor Tone

is applied to the horn relay control circuit

2 Command the Horn ON and OFF with the scan

Diagnostic Aids tool The horns should turn ON and OFF when

changing between the commanded states

If diagnosing a Horn- Poor Tone condition inspect the If the horns do not turn ON and OFF when

following

changing between the commanded states

Debris or water in the horn assembly refer to Horn Circuit Test Proper horn mounting hardware torque Refer to

Fastener Tightening Specications on page 4-1 CircuitSystem Testing Debris in the joint where the horns attach to the Horn Switch Circuit Test

vehicle

1 Ignition OFF disconnect the X

2 harness connector

Reference Information at the horn switch

2 Ignition ON test for less than 1 ohm between the

Schematic Reference ground circuit terminal 1 and ground

Horn Schematics on page 4-2 If greater than the specied range test the

Connector End View Reference ground circuit for an openhigh resistance

3 Ignition OFF connect the harness connector at

Component Connector End Views on page 11-211

the horn switch and disconnect the HORN relay

Description and Operation 4 Ignition ON verify that a test lamp does Horns System Description and Operation on page 4-12 not illuminate between the control circuit

terminal 87 and ground

Electrical Information Reference

If the test lamp illuminates test the control

Circuit Testing on page 11-456 circuit for a short to voltage

Connector Repairs on page 11-478 5 Verify that a test lamp

illuminates between the B

Testing for Intermittent Conditions and Poor

circuit terminal 85 and ground

Connections on page 11-460 If the test lamp does not illuminate test the B

Wiring Repairs on page 11-465 circuit for a short to ground or an openhigh

resistance If the circuit tests normal and

Scan Tool Reference the B circuit fuse is open test the control

Control Module References on page 6-1 for scan tool circuit terminal 87 for a short to ground If the

information circuit tests normal test or replace the

HORN relay

6 Verify that a test lamp illuminates between the B

circuit terminal 30 and ground

If the test lamp does not illuminate test the B

circuit for an openhigh resistance

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

4-8 Horns

7 Ignition OFF disconnect the harness connector at replace the BCM

the appropriate horn

8 Test for less than 5 ohms between the ground Component Testing

circuit terminal A and ground

Horn Test

If greater than the specied range test the

ground circuit for an openhigh resistance 1 Ignition OFF disconnect the harness connector at

the appropriate horn

9 Connect the harness connector at the

appropriate horn 2 Install a 15A fused jumper wire between the

control terminal B and 12 volts Install a jumper

10 Ignition ON connect a 15A fused jumper wire

wire between the ground terminal A and ground

between the B circuit terminal 30 and the

Verify the horn emits a clear and even tone

control circuit terminal 87 Verify the horns are

activated

If the sound emitted is not clear and even

replace the horn

If the horns do not activate test the control

circuit for an openhigh resistance If the Relay Test

circuit tests normal test or replace the horns 1 Ignition OFF disconnect the HORN relay

11 Connect a test lamp between the B circuit 2 Test for 60–180 ohms between terminals 85

terminal 85 and the control circuit terminal 86

and 86

12 Press and release the steering wheel horn pad If not within the specied range replace

The test lamp should turn ON and OFF when the relay

changing between the commanded states

3 Test for innite resistance between the following

If the test lamp is always ON test the control terminals

circuit for a short to ground If the circuit tests

30 and 86

normal inspect for a sticking horn switch

30 and 87

If the test lamp is always OFF test the control

circuit for a short to voltage or an openhigh 30 and 85

resistance If the circuit tests normal inspect 85 and 87

for an open horn switch

If not the specied value replace the relay

13 If all circuits test normal test or replace the

4 Install a 30-amp fused jumper wire between relay

HORN relay

terminal 85 and 12 volts Install a jumper wire

Horn – Poor Tone between relay terminal 86 and ground Test

for less than 2 ohms between terminals 30 and 87

1 Ignition OFF disconnect the harness connector at

the appropriate horn If greater than the specied range replace

2 Test for less than 5 ohms between the horn the relay

ground circuit terminal A and ground

If greater than the specied range test the Repair Instructions

ground circuit for a high resistance Perform the Diagnostic Repair Verication on page 6-86

3 Disconnect the HORN relay after completing the diagnostic procedure

4 Test for less than 1 ohm between the control

Relay Replacement Attached to Wire Harness

circuit terminal 87 and the control circuit on page 11-521 or Relay Replacement Within an

terminal B at the horn Electrical Center on page 11-522

If greater than the specied range test the Horn Replacement on page 4-9

control circuit for an openhigh resistance Steering Wheel Horn Switch Replacement on

5 If all circuits test normal test or replace the horn page 4-10

Control Module References on page 6-1 for BCM

Horn Circuit Test

replacement setup and programming

1 Ignition OFF disconnect the HORN relay

2 Connect a test lamp between the B circuit

terminal 85 and the control circuit terminal 86

3 Ignition ON command the Horn ON and OFF with

a scan tool The test lamp should turn ON and

OFF when changing between the commanded

states

If the test lamp is always ON test the control

circuit for a short to ground If the circuit tests

normal replace the BCM

If the test lamp is always OFF test circuit the

control circuit for a short to voltage or an

openhigh resistance If the circuit tests normal

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

Horns 4-9

Repair Instructions

Horn Replacement

SIE-ID 2089581 Owner jbedna01 LMD 01-apr-2008 LMB amille01

1845510

Horn Replacement

Callout Component Name

Preliminary Procedure

Remove the front wheelhouse liner front Refer to Front Wheelhouse Front Liner Replacement Traverse on page 3-30 or

Front Wheelhouse Front Liner Replacement Outlook on page 3-32

Horn Bolt

Caution Refer to Fastener Caution on page 0-6

1

Tighten

9 N?m 80 lb in

Horn

Procedure

2

Disconnect the electrical connector

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

4-10 Horns

Steering Wheel Horn Switch Replacement

SIE-ID 2151689 Owner blitch01 LMD 11-jun-2008 LMB dkonop02

1915485

Steering Wheel Horn Switch Replacement

Callout Component Name

Preliminary Procedure

Remove the inatable restraint steering wheel module Refer to Inatable Restraint Steering Wheel Module Replacement on

page 13-43

Steering Wheel Spoke Cover Qty 2

1

Tip Use gentle pressure to disengage the steering wheel spoke covers from the steering wheel

Radio Control Switch Bolt Qty 2

Caution Refer to Fastener Caution on page 0-6

2

Tighten

25 N?m 22 lb in

Radio Control Switch

3 Procedure

Disconnect any electrical connectors as needed

Cruise Control Switch Bolt Qty 2

4 Tighten

25 N?m 22 lb in

Cruise Control Switch

5 Procedure

Disconnect any electrical connectors as needed

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

Horns 4-11

Steering Wheel Horn Switch Replacement contd

Callout Component Name

Horn Switch

Procedure

6

Disconnect any electrical connectors as needed

Tip Use gentle pressure to disengage the horn switch from the steering wheel

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

4-12 Horns

Description and Operation

Horns System Description and Circuit Operation

Operation Battery positive voltage is applied at all times to the horn relay coil and the horn relay switch Pressing the

SIE-ID 1874499 Owner tspaul01 LMD 20-sep-2007 LMB hbah01 horn switch applies ground to the horn relay control

circuit When the horn relay control circuit is grounded

System Description the horn relay is energized and battery positive

The horn system consists of the following components voltage is applied to the horns through the horn control

HORN fuse circuit The horns sound as long as ground is applied to the horn relay control circuit

Horn relay

Horn switch

Horns

Body control module BCM

System Operation

The vehicle horns are activated whenever the

horn switch is depressed

The BCM commands the horns ON under any of

the following conditions

When the panic button is depressed on the

remote control door lock transmitter For

further information refer to Keyless Entry

System Description and Operation Without

Accessory 2 Way Remote on page 13-17

or Keyless Entry System Description

and Operation With Accessory 2 Way

Remote on page 13-19

When the content theft deterrent system

detects a vehicle intrusion For further

information refer to Content Theft

Deterrent CTD Description and Operation

on page 13-6

When the keyless entry system is used to

lock the vehicle a horn chirp may sound

to notify the driver that the vehicle has been

locked The notication feature may be

enabled or disabled through personalization

For further information refer to Keyless

Entry System Description and Operation

Without Accessory 2 Way Remote on

page 13-17 or Keyless Entry System

Description and Operation With Accessory 2

Way Remote on page 13-19

When the OnStar system is used to sound

the horns if equipped For further information

refer to OnStar Description and Operation

on page 8-99

2009 - Acadia Enclave OUTLOOK Traverse VIN RV Service Manual June 24 2008

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