Page 2801 of 4402
Instrum\bnt Clust\br \f Instrum\bnt Clust\brS-MAX/G\bl\bxy\f2006.5\f(02/2006
\fPrint
R\bmoval and Installation
G\bn\bral Equipm\bnt
R\bmoval
NO
TE:\fRemov\bl\fsteps\fin\fthis\fprocedure\fm\by\fcont\bin\finst
\bll\btion\fdet\bils.\f
C\bble\fties
Fl\bt-bl\bded\fscrewdriver
Ford\fdi\bgnostic\fequipment
Round-ended\fsteel\frule
1. \f
2.General \bqui\fment: Fl\bt-bl\bded\fscrewdriver \f
3. \f
4
. \f
\f\f
\f
\f\f
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Page 2802 of 4402
5. \f
6.Torque: 8\fNm
\f
7. \f
8.
CAUTION:\fM\bke\fsure\fth\bt\fno\fstr\bin\fis\fpl\bced\f
on\fthe\fwiring\fh\brnesses.\f
General \bqui\fment: C\bb
le\fties\f
9. \f
\f\f
\f\f
\f\f
\f\f
\f\f
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Page 2803 of 4402
Installation 10.
General
\bqui\fment:
Round-
ended\fsteel\f
rule \f
1. T
o\finst\bll,\freverse\fthe\fremov\bl\fprocedure.\f
2.
NOTE:\fThe\fcentr\bl\fc\br\fconfigur\btion\fd\bt\b\fmust\fbe\f
m\bnu\blly\fuplo\bded\f\bfter\fthe\finst\bll\btion\fof\f\b\fnew\f
instrument\fcluster.\f\f
For\f\bddition\bl\finform\btion\fdue\fto\fmodule\fconfigur\btion\f
see\fTSB\f73/2006.\f
General \bqui\fment: Ford\fdi\bgnostic\fequipment \f
\f\f
\f
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Page 2804 of 4402

Horn - HornS-MAX/G\bl\bxy\f2006.5\f(02/2006-)\fPrint \f
D\bagnos\bs an\f Test\bng
Pr\bnc\bples of Operat\bon
Th
e\fhorn\fsystem\fconsists\fof\f\b\frel\by,\f\b\fsteering\fwheel\fswitch\f\bnd\feither\fone\for\ftwo\fhorns.\f
The\fhorn(s)\freceives\fvolt\bge\ffrom\fthe\fswitched\fside\fof\fthe\frel\by,\f\bnd\fthe\frel\by\fswitch\fis\f
controlled\fon\fits\fground\fside\fby\fthe\fsteering\fwheel\fswitch.\f
The\fhorn\frel\by,\fis\floc\bted\fin\fthe\fb\bttery\fjunction\fbox\f(BJB)\f\bnd\fis\fsupplied\fwith\f\b\f
perm\bnent\fvolt\bge\ffrom\fthe\fb\bttery.\f
The\fsteering\fwheel\fhorn\fswitch\fsh\bres\fthe\fsteering\fwheel\fclockspring\fcircuit\fwith\fthe\f\bir-
b\bg\fcircuit.\fE\bch\fof\fthese\fsystems\fwork\fcompletely\findependent\fof\fe\bch\fother.\f
Inspect\bon an\f Ver\bf\bcat\bon
1. 1.
Verify\fthe\fcustomer\fconcern.\f
2
. 2.
Visu\blly\finspect\ffor\fobvious\fsigns\fof\fmech\bnic\bl\for\felectric\bl\fd\bm\bge.\f
V
\bsual Inspect\bon Chart
3. 3.
If\f\bn\fobvious\fc\buse\ffor\f\bn\fobserved\for\freported\fconcern\fis\ffound,\fcorrect\fthe\fc\buse\f
(if\fpossible)\fbefore\fproceeding\fto\fthe\fnext\fstep.\f
4. 4.
Retrieve\fthe\fDi\bgnostic\fTrouble\fCode\f(DTC)s\f\bnd\frefer\fto\fthe\fDTC\fIndex\fCh\brt.\f
D
\bagnost\bc Trouble Co\fe (DTC) In\fex Chart
1. 1.
If\fthe\fc\buse\fis\fstill\fevident,\frefer\fto\fthe\fSymptom\fCh\brt.\f
S
ymptom Chart
Electric\bl
Fuse(s)\f\f
Wiring\fh\brness\f\f
Electric\bl\fconnector(s)\f\f
Horn\fswitch\f\f
Horn\f\f
Clockspring\f\f
Horn\frel\by\f\f
BJB\f
DTCDe\fcription/Condition
Po\f\fible
Source
Action
9C5512Horn\frel\by-\fcircuit\fshort\fto\fb\btteryBJBREFER\fto\fFord\fdi\bgnostic\f equipment.
9C5514Horn\frel\by\f-\fcircuit\fshort\fto\fground\for\f
openBJBREFER\fto\fFord\fdi\bgnostic\fequipment.
SymptomPo\f\fible Source\fAction
The\fhorn\fis\finoper\btiveCircuit(s).\f
Horn.\f
Horn\frel\by.\f
Clockspring.\f
Horn\fswitch.\f
BJB.\f
*
*
*
*
*
*GO\fto\fPinpoint\fTest\f
A.\f\f
*
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Page 2805 of 4402

P\bnpo\bnt Tests
The\fhorn\fis\f\blw\bys\fonHorn\frel\by.\f
BJB.\f
Horn\fswitch.\f
Circuit(s).\f
Clockspring.\f
*
*
*
*
*REFER\fto\fthe\fFord\fdi\bgnostic\fequipment.\f
*
PINPOINT TEST A : THE HORN IS INOPERATIVE
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
A1: CHECK POWER TO THE HORN
Disconnect\fHorn\fC1RH02.\f1
Me\bsure\fthe\fvolt\bge\fbetween\fthe\fhorn\fC1RH02\fpin\f
2,\fcircuit\fGBB31B\f(BU/OG),\fh\brness\fside\f\bnd\f
ground\fwhile\fpressing\fthe\fhorn\fswitch.\f2
Is\fthe\fvolt\bge\fgre\bter\fth\bn\f10\fvolts?\f
Yes GO\fto\fA2.\f\f
No
GO
\fto\fA3.\f\f
A2: CHECK GROUND TO THE HORN
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fhorn\fC1RH02\f
pin\f1,\fcircuit\fGD312G\f(BK/VT),\fh\brness\fside\f\bnd\f
ground.\f1
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes INSTALL\f\b\fnew\fhorn.\fTEST\fthe\fsystem\ffor\fnorm\bl\f
oper\btion.\f
No
REPAIR\fcircuit\fGD312G\f(BK/VT).\fTEST\fthe\fsystem\f
for\fnorm\bl\foper\btion.\f
A3: CHECK POWER TO THE HORN RELAY
Disconnect\fHorn\fRel\by\fR9.\f1
Me\bsure\fthe\fvolt\bge\fbetween\fthe\fhorn\frel\by\fR9\fpin\f
1,\fh\brness\fside\f\bnd\fground;\f\bnd\fhorn\frel\by\fR9\fpin\f
3,\fh\brness\fside\f\bnd\fground.\f
2
Are\fthe\fvolt\bges\fgre\bter\fth\bn\f10\fvolts?\f
\f\f
\f\f
\f\f
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Page 2806 of 4402

Yes GO\fto\fA4.\f\f
No I
NSTALL\f\b\fnew\fBJB.\fTEST\fthe\fsystem\ffor\fnorm\bl\f
oper\btion.\f
A4: CHECK HORN SWITCH CIRCUIT FOR OPEN
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fhorn\frel\by\fR9\f
pin\f2,\fcircuit\fCRH04A\f(VT/GN),\fh\brness\fside\f\bnd\f
ground\fwhile\fpressing\fthe\fhorn\fswitch.\f1
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes INSTALL\f\b\fnew\fhorn\fRel\by\fR9.\fTest\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
No
GO\fto\fA5.\f\f
A5: CHECK SUPPLY TO THE CJB
Disconnect\fCJB\f1BB01.\f1
Me\bsure\fthe\fvolt\bge\fbetween\fthe\fCJB\f1BB01\fpin\f1,\f
h\brness\fside\f\bnd\fground\f\bnd\fbetween\fthe\fCJB\f
1BB01\fpin\f2,\fh\brness\fside\f\bnd\fground.\f
2
Are\fthe\fvolt\bges\fgre\bter\fth\bn\f10\fvolts?\f
Yes REPAIR\fthe\fcircuit\fSBB17.\fTEST\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
No GO\fto\fA6.\f\f
A6: CHECK CIRCUIT CRH04A (BN) FOR OPEN
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fCJB\f1BB01\fpin\f
46\fcomponent\fside\f\bnd\fground\fwhile\fpressing\fthe\f
horn\fswitch.\f
1
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes REPAIR\fthe\fcircuit\fCRH04A.\fTEST\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
No GO\fto\fA7.\f\f
A7: CHECK CJB 1BB01 FOR OPEN
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fCJB\f1BB01\fpin\f
13,\fh\brness\fside\f\bnd\fground\fwhile\fpressing\fthe\f
1
\f\f
\f\f
\f\f
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Page 2807 of 4402

horn\fswitch.\f
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes INSTALL\f\b\fnew\fCJB\f1BB01.\fTest\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
No GO\fto\fA8.\f\f
A8: CHECK CIRCUIT CRH03A (BN) FOR OPEN
WARNING:\fTo\fde\bctiv\bte\fthe\fdriver\f\bir\fb\bg,\frefer\fto\fthe\fprocedure\fin\fsection\f501-
20B.\fF\bilure\fto\ffollow\fthis\finstruction,\fm\by\fresult\fin\fperson\bl\finjury.\f
Disconnect\fsteering\fwheel\fmodule\f2R115.\f1
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fsteering\fwheel\f
module\f2R115\fpin\f4,\fcircuit\fCRH03-A\f(BN),\fh\brness\f
side\f\bnd\fhorn\frel\by\fR9\fpin\f2,\fCRH03-A\f(BN),\f
h\brness\fside.\f
2
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes GO\fto\fA9.\f\f
No R
EPAIR\fthe\fcircuit\fCRH03-A.\fTEST\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
A9: CHECK CIRCUIT GD133CJ (BK) FOR OPEN
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fsteering\fwheel\f
module\f2R115\fpin\f7,\fcircuit\fGD133CJ\f(BK),\fh\brness\f
side\f\bnd\fground.\f
1
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes GO\fto\fA10 .\f\f
No
R
EPAIR\fthe\fcircuit\fGD133CJ.\fTEST\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
A10: CHECK CIRCUIT C2RH02AB FOR OPEN
Disconnect\fhorn\fswitch\f2RH03.\f1
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fsteering\fwheel\f
module\f2R115\fpin\f7,\fcircuit\fCRH02AB,\fh\brness\fside\f
\bnd\fhorn\fswitch\f2RH03\fpin\f1,\fcircuit\fC2RH02B,\f
h\brness\fside.\f
2
\f\f
\f\f
\f\f
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Page 2808 of 4402

Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes GO\fto\fA11 .\f\f
No R
EPAIR\fthe\fcircuit\fC2RH02AB.\fTEST\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
A11: CHECK THE HORN SWITCH
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fhorn\fswitch\f
2RH03\fpin\f1,\fcomponent\fside\f\bnd\fhorn\fswitch\f
2RH03\fpin\f2,\fcomponent\fside\fwhile\fpressing\fthe\f
horn\fswitch.\f1
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes GO\fto\fA12 .\f\f
No I
NSTALL\f\b\fnew\fhorn\fswitch\f2RH03.\fTEST\fthe\f
system\ffor\fnorm\bl\foper\btion.\f
A12: CHECK CIRCUIT C2RH03AB FOR OPEN
Me\bsure\fthe\fresist\bnce\fbetween\fthe\fsteering\fwheel\f
module\fpin\f4,\fcircuit\fCRH03AB,\fh\brness\fside\f\bnd\f
horn\fswitch\fC2RH03\fpin\f2,\fcircuit\fC2RH03AB,\f
h\brness\fside.\f
1
Is\fthe\fresist\bnce\fless\fth\bn\f5\fohms?\f
Yes
INSTALL\f\b\fnew\fsteering\fwheel\fmodule.\fTEST\fthe\f
system\ffor\fnorm\bl\foper\btion.\f
No REPAIR\fthe\fcircuit\fC2RH03AB.\fTEST\fthe\fsystem\ffor\f
norm\bl\foper\btion.\f
\f\f
\f\f
\f\f
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