1999 HONDA CIVIC Ignition switch

Troubleshooting Flowchart - Brake Switch Signal
Symptom
Shift lever cannol b€ moved f.om
B pGition with the brako podrl
depr8sed.
PCM CONNECTORS
Check Brako Light Operation:Deoress the brake pedal.
Rop.ir faulty braks switch cilcuit
lsos soction 231.Are the brake lights ON?
Measure SToP SW Vohag€:1. Turn the ignition switch OFF.2. Disconnect the A l32P) and D
{l6P) connectors from thoPCM.3. Measure the voltage belweenthe D5 and A9 or A22 termi-nals with the brake Pedaldepressod.
Rap.i. opon in the wira bctn oentha 05 terminal and tho btrkclwitdr.ls there battery voltage?
. Brake switch 3ign.l is OK.. Ch6ck lor looao PCM oonnoctors.It nocassary, aubctilute a known-good PCM and r€check.. Inspoct the brake switch circuit
{s6e section 231.
Wire side of lemale terminals

Electrical Troubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A
NOTE: Record all freeze data before vou troubleshoot.
Possible Cause
. Disconnocted lock-uD controlsolenoid valve A/B alsemblyconnector. Short or opon in lock-up conkolsolenoid valv6 A wire. Faulty lock-up control solenoidvalva A' Open in VB SOL wireFCM CONNECTORS
LGl IBRN/BLXI LG2 (BRN/BLK)
Wire side ot female terminals
LGl (BRN/BLKILG2 IBRN/8LK)
To page 1+81
a\
. OBD ll Scan Tool indic.t6 CodeP1753.. Self-diagnosis @ indicatorlight blink3 once.
Check lor a Short to Power:L Turn the ignition switch OFF.2. Disconnect the B (25P) and D(16P) connectors lrom thePCt\4.3. Turn the ignition switch ON (ll).4. Measure the voltage betweenthe Dl and 820 or 822 termi-nats.
Ropair short to powcr in the wirebstwoon tho Dl tolminal and thelock-up cor|lrol lolonoid valvo A.
Measu.e Lock-up Cont.ol Sole-noid V.lvo A R63btanc6:1. Turn the ignition switch OFF.2. Measure the resistancebetween the Dl and 820 or822 terminals.
ls the resistance 12 - 25 O?
Measure VB SOL Vohage:1. Turn the ignition switch ON (ll).2. Measure the voltage betweenthe D5 and 820 or 822 termi-nals.
Check for blown No. 15 17.5 Alfu3€ in the undordash fuse/rabybox. l{ th€ tusa ii OK, r.pair oponin the wira b€twoen th€ 05 torfti-nal and thc und€r{ash fuso/r€laybox.
Check to.loose tarminalfit in thePCM connecloa3. ll necessary,substilute a known-good PCMand rocheck.
B (25Pt ll D {16P1
B (2sPt ll D {16P1
I t25Pt D (16P1
l..
14-80

Electrical Troubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve B
NOTE| Record allfreeze data before you troubleshoot.
Possibla Cause
. Oisconnected lock-uD controlsolenoid velve A/B assemblyconnector. Short or open in lock-up controlsolenoid valv€ B wire. Faulty lock-up control solenoidvalve B' Open in VB SOL wirercM CONNECTORS
To page 14-83
' OBD ll Scan Tool indic.tes CodeP1758.. Self-diagnosis E indicatorlight blinks twice.
Chack for a Short to Power:1. Turn the ignition switch OFF.2. Disconnect the I (25P) and D(16P) connectors from thePCM.3. lurn the ignition switch ON (ll).4. Measure the voltage betweenthe D3 and 820 ot 822 tetmi-nals,
Repair short to power in the wirebetween the D3 terminal and thelock-up contlol solenoid valve B.
Measure Lock-up Control Sole-noid Vdlve I R8i3tance:1. Turn the ignition switch OFF.2, Measure the resistancebetween the D3 and 820 or822 terminals.
ls the resistance 12 - 25 O?
Measure VB SOL Voltago:1. Turn the ignition switch ON lll).2. Measure the voltage betweenthe D5 and 820 or 822 termi-nals.
Check for blown No. 15 {7.5 Alfus€ in the under-dash luse/releybox. It the fuse is OK, repair openin the wir6 between th6 DS terminal and the under-dash fuse/rebyoox,
ls there battery voltage?
Chock for loose te.minal fit in thePCM connectors. It necessary,substitute a known-good PCMend recheck.
B t2sP) ll D t15P)
Wire side ol female terminals
I {2sPt ll D (16Pt
B (25P1 D t16Pt
\
14-82

Electrical Troubleshooting ('gg - 00 Models)
Troubleshooting Flowchart - A/T Gear position Switch (Short)
NOTE: Record all freeze data before you troubleshoot.
Po$ible Cause
' Short in A/T go.r positionswhch wire. Faulty A/T goar position switch
NOTE: Code P1705 (5)the PCM received twoinputs at the same time.
is caused whengear position
PCM CONNECTORS
LGl (BRN/BLK) LG2 (BRN/BLKI
Wire side of femaleterminals
B {25P1 llD (16P1
. OBD ll Scan Tool indicrtB CodeP1?05.. Solt-diagno3i3 E indicatorlight blink. tive times.
Observo the A/T Gear PositionIndicetori1. Turn the ignition switch ON fit).2. Observe the lVT gear positionindicator, and shift each posi,!on separately.
Does any indicator stay onwhen the shift lever is not inthat position?
The sFtom is OK at thi3 time.Check the wi.e harness for dam-aga.
Do all gear position indicatorsgo out?
Moasure ATP R Voltage:1. Shift to all positions otherthanE.2. Measure the voltage betweenthe DG and 82O o( 822 terfii-nats.
Check tor short in the wirebatwoen tha DB terminal and theA/T go.r porhion switch or A/Tg6ar po3ition indicator, andchock for opon in the wiresbetween the B20 and B22 t€rmi-n.ls and body ground (G10 . tfwir€c rro OK, chsck fo. loo3e tel-ftinal fit in the FCM connectors. llnoceisary, substiiute e known-good FCM and r€check.
ls there battery voltage?
To page 14-85
\
14-84

Troubleshooting Flowchart - A/T Gear Position Switch (Open)
NOTE: Record allfreeze data before you troubleshoot.
Po$ible Cause
. Disconnectod A/T goar position
switch conngdor. Open in A/T gear position
switch wire. Fautty Aft gear poshion switch
PCM CONNECTORS
Wire side of lemaleterminals
D (16P1
GRNI
B (25Pt llDtl6Pl
IARN/BLK) LG2IBRN/BLKI
2{6,|235
I't011/t5l/18912
ATP NP (LT
. OBO ll Scan Tool indicatd CodcP1706.' Sslf-diagnosis E indicatorlight blink3 six tim6.
Test the Ay'T gear position switch(see section 23).
Moasure ATP R Volt.ge:'1. Turn the ignition switch ON ('l).
2. Shift to E position.
3. Measure the voltage between
the D6 and 820 ot 822 termi'nals.
Repoir opon in the wire bitween
the D6 torminll and the A/T go.r
position switch.
Measuro ATP NP Volt ge:
1. Shift to E or E position.
2. Measlre the voltage betweenthe D13 and 820 or 822 termi-nals,
Ropair op€n in thc wire betwoonthe D13 terminrl and the A/Tge.r position switch.
LG1 {BBN/BLKI
Io page 14-88
(cont'd)

Troubleshooting Flowchart - Shift Control Solenoid Valve A
NOTE: Record allJreeze data before you troubleshoot.
Possible Cru3.
' Disconnectod 3hift control
solonoid valva A/B a33emblY
connactot. Short or opon in shift cont.ol
solonoid valvo A wits. Faulty shift control .olenoid
. op.n in vB SOL wi.e
To page 14-90
PCM CONNECTOBS
LG1{BRN/BLK} LG2IBRN/BLKI
Wire side of female terminals
LGl IBRN/BI-K)LG2IBBN/BLK)
. OBD ll Scan Tool indic.ts6 Code
Pot53.. Solt-diagno.is E indicrtot light
blinks seven time6.
Chock tor a Short to Power:
1. Turn the ignition switch OFF.
2. Disconnect the g (25P) and D(16P) conneclors from the
PCM,3. Turn the ignirion switch ON (ll)
,1. Measure the voltage between
the D7 and 820 or 822 termi
nals,
Rcpair short to powet in the wile
b€t^reen tho D7 termin.l .nd the
shift control aolonoid valve A.
Mee3ur. Shift Control Solonoid
Valve A Roaisttnce:1. Turn the ignition switch OFF.
2. Measure the resistance
between the D7 and 820 or
822 terminals.
ls the resistance 12 - 25 O?
Me.3uro vB SOL Voh.ge:1. Turn the ignition switch ON (ll).
2. Measure the voltage betweenthe D5 and 820 or 822 termi-
nals.
Check tor blown No. 15 17.5 A)
fuse in tho underdaah fula/rol.Ybox. ll the tusr is OK, .epair oPenin th. wiio betwe.n the D5 ter'min.l and th. underdssh tuso/relav box.
ls there baftery voltage?
Check for loose t6tminalfit in th€
PCM connoctors. It necessary,substitute e known-good PCMand rechock.
I t25Pt ll D {16P)
B rzsPt o trQil
(cont'd)
14-89

Troubleshooting Flowchart - Shift ControtSolenoid Valve B
NOTE: Record all freeze data before you troubleshoot.
Possiblg Cause
. Disconnectgd ihilt control
solenoid valve A/B conneciotr Short or oDen in shift conlrol
3olgnoid vrlve B wito. Faulty 3hift control solenoid
velve B. Op€n in VB SOL wirercM CONNECTORS
LGlIBRN/BLKI LG2IBRN/BLK)
Wire side of {emale terminals
LGi (BRi|/BLKILG2 IBRN/8LK)
To page 14-92
(cont'd)
14-91
. OBD ll Scan Tool indic.l6 Code
P0758.' Self-diagnosb El indicator light
blinks eighl tim6.
Check tor a Shortto Power:
1. Turn the ignition switch OFF
2. Disconnect the B (25P) and D(16P) connectors from the
PCM.3. Turn the ignition switch ON (lli.
4. Measure the voltage between
the D2 and 820 or 822 termi
nals,
Repaft 3hon to Powor in the wir€
b€tirvoon the D2 termin.l and the
3hift control solenoid valve B.
M€asure Shift Control SolenoidValve B R6isttnce:1. Turn the ignition switch OFF
2. Measure the resistance
between the D2 and 820 or
822 terminals.
ls the resistance 12 - 25 O?
Me.sure VB SOL Vohage:1. Turn the ignition switch ON (ll).
2. Measure the voltage betweenthe D5 and 820 or 822 termi'
nars.
Check lol blown No 15 {7.5 Al
fuse in the under-d.sh luae/rolav
box. ll the fuse is OK, repair open
in ihe wire between tho D5 ter-
minal and the under'dash fus€/relav box.
ls there battery voltage?
Check for loo3e terminal fit in the
PCM connectols. lf necossarY,
substitute a known_good PCM
and rocheck,
B (25Pt - I lD {16P)
B {25P1 D (t6Pl

Troubleshooting Flowchart - Linear Solenoid
NOTE: Record all freeze data before you troubleshoot.
Poitibl. Cau3.
. Disconnacted linoaJ tolanoidconnaclol. Shorl or opon in linolr solonoid
. Flulty linoar 3olenoid. ODon in VB SOL wit.. ODen in PG linoPCftI @NNECTORS
Wire side ol female terminals
PCM OONNECTOR B I25PI
LGT (BNN/BLKI LG2 {BBN/BLKI
Wir6 side of Iemale terminals
LINEAF SOITNOID OONNECTOR
Flr-11=T=T
olYI
L_l
Terminal side of mal€ termanals
(cont'd)
B t25Pl D {16P1
. OBD ll Scln Tool indic.t.t CodoP1768.. Self-diagnosis E indicltol indi-
cat6 Cods 16.
Moasur. VB SOL Voltago:1. Turn the ignition switch OFF.2. Disconnect the B {25P) and D(16P) connectors from thePCM.3. Turn the ignition switch ON (lll.
4. Measure the voltage between
the D5 and 820 or 822 termi-
nals.
Ropair opan or thort in dla wi.9hrw..n th. D5 t.rminrl .nd th.
und.r-d.rh fu ta/r.l.y box.
Ch.ck th. Ground Circuit:1. Turn the ignition switch OFF.2. Check lor continuity betwoenthe terminals 82 and 822 and
between terminals 810 and820.
Rapair opal| in tfr wi|! batlwaoth. tcrrnln.l. 82, B10, B:20. .ndBZI .id Gt01. R.p.ir poor ground
tG10rl.
M.!sure Linea. SolenoidRcai3tancc rt tha SolanoidConn6ctor:1. Disconnect the linearsolenoidconnectol,2. Measure the resistance of thelinear solenoid.
ls the resistance approx. 5 O?
To page 14-98
1+97