Page 635 of 1395
Troubleshooting Flowchart - Lock-up Control System
Possible Caus6
Faulty lock-up control system
. OBD ll Scan Tool indicatesCode P07,10.. selt-diagnGis El or E indica-tor light indicates Code 40.
lf the PGM Tester is available,retrieve the A/T Freeze Data, thenclear the PCM.
Test-drive the vehicle under thesame conditions the Freeze Data
lntermittent failur6. The systemis OK at this time, Check the filol the pins in all connectorsaffected bv lhis code.
Did the code return?
Check for Another Codc:Check whether the OBD ll scan toolor rhe E or E]indicator light indicates anothercode,
Perform tho TroubleshootingFlowchart for lh6 indicatedCodolll. Rechock tor code P0740(,lO) aft er troubleshooting.
Does the OBD ll scan toolor the @ or E indicatorlight indicate another code?
Test Lin€ Pres3uro:Measure the line pressure (see
page 14'161 and 14-162i.
Repair th6 hyd.aulic system asnecessary {see page 14-161 and14-152).
ls the line pressure withinthe service limit?
To page 14-120
NOTE: Do not continue this trou-bleshooting until the causes of anyother DTCS have been corrected.
(cont'd)
14-119
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Page 636 of 1395
Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Lock-up Control System (cont'd)
From page 14-119
Replace the Lock-up ControlSolenoid Valve A/B Assomblyand Recheck:1. Replace the lock-up controlsolenoid valve A,/B assembly(see page 14-!35).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)fuse in the undeFdash fuse/relay box for more than 10seconds.3. Using the scan tool, check tobe sure that the engine coolanttemperature is 176"F {80'C) orabove.4. Drive the vehicle at 55 mph(88 km/h) constantly tor morethan one minute.5. Recheck {or code P0740 (40i.
Does the OBD ll scan tool indicatecode P0740 or does the [9i] or Eindicator light indicate code 40?The system is OK at this time.
14-120
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Page 637 of 1395
Troubleshooting Flowchart - Shift Control System
Possible Cause
Faultv shift control sYstem
NOTE: Do not continue thas trou
bleshooting until the causes of any
other DTCS have been corrected.
(cont'd)
14-121
. OBD ll Scan Tool indicates
Code P0730.. Self-diagnosis Jir or E indica-
tor light indicates Code 41.
lf the PGM Tester is available,
retrieve the AJ.I Freeze Data, then
clear the PCM.
Test-drive the vehicle under the
same conditions the Freeze Data
lntermittent failure. The system
is OK at this time. Ch€ck the fit
of the pins in all connectors
atfected by this code.
Did the code return?
Check for Another Code:
Check whether the OBD ll scan
tool or the l-Drl or E] indicator
light indicates another code.
Perlorm the TroubleshootingFlowchart for the indicaled
Codets). Recheck for code P0730
{411 6ft6r troubleshooting.
Does the OBD ll scan tool
or the Da or E indicatorlighl indicate another code?
Measure Each Clutch Pressure:
Measure the 1st, 2nd, 3rd, and
4th clutch Pressure (see Page 14
161 thru 14163).
Repair the hydraulic sYstem as
necessary (se€ page 14-162 and
14-163).
ls eac h clutch Pressurewithin the service limit?
To page 14-122
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Page 638 of 1395
Electrical Troubleshooting {'gB - 00 Models}
Troubleshooting Flowchart - Shift Control System (cont,d)
From page 14 121
Replace Shilt Cont.ol SolenoidValve A$ambly and Recheck:'1. Replace the shift controlsolenoid valve A/B assembly(see page 14-136) and the lin,ear solenoid assembly (seepage 14138).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)tuse in the !nder-hood luse/relay box for more than 10seconos.3. Drive the vehicle at over '12
mph (20 km,/ti) in lst,2nd,3rd,and 4th gear tor more than 30seconds in E position.4. Recheck for code P0730 (41).
Does the OBD ll scan toolindicate code P0730 or doesthe E orE indicator lightindicate code 41?
Tho system is OK .l this tim€.
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Page 642 of 1395
Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchart - Interlock System - Shift Lock System
NOTE: li the MIL is on, ropair the PGM-FI controt system{see section 11), and recheck.
PCM CONNECTORS
c l3lPl
Wire side of female lerminals
c t3lPt
D {16P1
1 tttt/ 5t/ 1 a t /tlt 1 t\/t ,/ VVV tl t ttj,r\1e\10l211n . I 3 rholr1 t?m@-@Effilil"
D (lCPl
| 2ttt/ ;t /n) ).tt)/ 1 21:/ tvvvvv nnvl.lnl2
I r r ero
12wE gp]P] polr EI!l!!i r.
a (25P1
LGl {8RN/ALKI
Shift levor cannot be mov6dllom the E po3ition when th6blako pedal is pre3sed.
Ch€ck BJake Light Oporation:Press the brake pedal.
B6pair tlutty brrko 3whch circuitl..e rection 231.Are the brake lights ON?
Me.sure ILU Voltage:1. Turn the ignition switch ON (ll1,and shiftto E position.2. Press the brake pedal, andrelease the accelerator pedal.3. Measure the voltage betweenthe A28 terminal and bodygrouno.
Chock tor an open or short in thewi.o botwoen tha A28 t6rminrland thc intorlod( control unit, rndcheck tor loose torminrl fit in theintorlock conftol unh connoctor. lfnocassaryr aubstitute a known-good intollock control unit rndroch6d(
Mor3uro STOP SW vohsgo:1. Turn the ignition switch OFF.2. Disconnect the A (32P1 and B(25P) connectors {rom thePCM.3. Measure the voltage betweenthe A32 and 820 or 822 termi-nals,
Repair op6n in tho wir€ betwsenthe A32 t6.minal and th6 brake3witch.
ls there battery voltage?
fo page 14-121
14-126
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Page 644 of 1395
Electrical Troubleshooting ('98 - 00 Modelsl
Troubleshooting Flowchaft - Interlock System - Shift Lock System {cont'dl
INTERLOCK CONTROLUNTT CONNECTOR ISPI
SHIFT LOCK IYEL/BLX
SHIFT LOCK tCONNECTOR
{YEL/BLKI
123
1678
o
LOCK SOLENOID
12
YEL/BLK
Wire side of female termtnals
SHIFT LOCK SOI.ENOIDCONNECTOR
"l z-irr-
YEL ](v)
I!
Wire side of female terminsls
NOTE: Do not connect the No. 2 terminal tothe battery positive terminal, or you willdamage the diode inside the shift rocKsolenoid.
SHIFT LOCK SOLENOIOCONNECTOR(dir.ctly on $lenoidl
Terminal side of male terminals
From page 14-127
Check Shift Lock Solenoid tor anOpen Ci.cuit:1. Disconnect the shilt locksolenoid connector,2. Check for continuity betweenthe No. 2 terminal of the shiftlock solenoid connector andthe No. 3 terminal of the interlock control unit connector,
Repair open in the wir6 betweenth€ No. 2 termin.l oI ihe inter-lock control unit and ahift locksolenoid.
ls there continuity?
Measu.e Shift Lock SolenoidVoltage:1. Turn the ignition switch ONflr).2. Measure the voltage betweenthe No. 1 terminal and bodyground.
Check lor blown No.25 {7.5 Alfuse in the underdash fuse/relaybox. It the tuse i3 OK, repair oponor short in lhe wire betw€en theNo. 1 terminal of tho shift locksolenoid connector rnd theunder-dash fuso/r€lay box,
ls there battery voltage?
Check Shift Lock SolenoidOperrtion:1. Connect the No. 1 terminal ofthe shitt lock solenoid connector to the battery positiveterminal, and connect the No,2 terminal to the battery neg,ative terminal.2. Check that the shift locksolenoid operates.
Does the shift lock solenoidoperate properly?Roplace the shift lock solenoid.
Check tor looso torminal tit in th6interlock control unit connector.lf necessary, substitute a known-good int€rlock control unil andrecheck.
14-128
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Page 646 of 1395
Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Interlock System - Key Interlock System (cont,dl
INTERLOCK CONTROL UNIT CONNECTOR {8PI
KEY LOCK SOL (WHT/BI-U}
ACC PUSH SW {WHT)
Wire side of female terminals
ATP P IBLK/BLUI
From page 14'129
Shift lever must be in E.
Check Key Intorlock Solonoid tola Short Circuit:1. Disconnect the interlock controlunit connector,2. Check for continuity betweenthe No. l terminal and bodyground and between the No.5terminal and body ground individually.
Repair shon in thc wire betweonthe No. 1 or No. 5 terminal andth€ ignhion switch 6P connector.
ls there continuity?
Check Park Pin Switch Opera-tion:Check for continuity between theNo. I terminal and body ground.
Check for short in the wir6between the No. 8 terminal ofthe int€rlock control unit and thopark pin switch. ll wire is OK,ch6ck the park pin switch.
ls there continujty?
Moasure ATP P Voftegel1. Turn the ignition switch ON (lli.2. Measure the voltage betweenthe No. 6 terminal and bodyground.
Repair open in the wiro betweenthe No. 6 termin.l and the A/Tgear position 3witch.
Check for looseterminal fit in th€interlock control unit connoctors.lf necosssry, substitute t known-good interlock control unit andrecheck.
14-130
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Page 651 of 1395
Lock-up Control Solenoid Valve A/B Assembly
Test
1.
2.
Disconnect the 2P connector from the lock-up con'
trol solenoid valve A'lB assembly.
Measure the resistance between the No. 2 terminal
(solenoid valve A) of the connector and body
ground. and bet\iveen the No. 1 terminal (solenoid
valve B) and body ground.
STANDARD: 12 - 25 o
LOCK-UP CONTROLSOLENOID VALVECONNECTOR I2P)
Replace the lock-up control solenoid valve A/B
assembly if the resistance is out of specification
lf the resistance is within the standard, connect the
No. 1 terminal of the connector to the battery positive
terminal. A clicking sound should be heard Connect
the No. 2 terminal to the battery positive terminal. A
clicking sound should be heard. Replace the lock-up
control solenoid valve Ay'B assembly if no clicking
sound is heard when either terminal is connected to
the banerv Dositive terminal.
Check the lock-up control solenoid valve fluid pas-
sages for dust or debris, and replace as an assem
bly, if necessary.
Terminalside ofmale terminals
LOCK.UP CONTROL
Replacement
NOTE: Lock-up control solenoid valves A and B must be
removed/replaced as an assembly.
1. Remove the mounting bolts and the lock-up control
solenoid valve A,,/B assembly.
LOCK.UP CONTROL6 x 1.0 mm SOLENOIO VALVE12 N.m 11.2 kgf.m,8.7 lbf.ft) A/B ASSEMBLY
Replace.Clean the mounting surfaceand flu id passages.
2.Clean the mounting surface and fluid passages, and
install a new lock-up control solenoid valve IVB with
a new filter/gasket.
Check the connector for rust, dirt, or oi!, and recon-
nect it securely.
oa
14-135
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