Page 608 of 1395
Electrical Troubleshooting {'97 Model)
Troubleshooting Flowchart - Interlock System - Key Interlock System lcont'dl
INTERLOCK CONTROL UNIT CONNECIOR {8PI
KEY LOCK SOL {WHT/8I-UI
ACC PUSH SW IWHTI
Wire side of female terminals
ATP P (BLK/BLU)
Check Key Interlock Solenoid fora Short Circuit:1. Disconnect the interlock controlunit connector.2. Check for continuity betweenthe No. l terminal and bodyground and between the No.5terminaland body ground indi-vidually.
Repair short in the wire betweenthe No. 1 or No. 5 terminal andthe ignition switch 6P connector.
ls there continuity?
Check Park Pin Switch ODeration:Check for continuity between theNo. I terminal and body ground.
Check tor shori in the wirebetwo€n the No. 8 terminal otthe interlock control unit and thepark pin switch. lf wire is OK,ch6ck the park pin switch.
ls there continuity?
Measu16 ATP P Voltage:1. Turn the ignition switch ON lll).2. Measure the vohage betweenthe No.6 terminal and bodyground.
R6pei. open in the wire betweenthe No. 6 i€rminal and the A/Tgea. position switch.
Check for loose terminalfit in theinterlock control unil connectors.lf necessery, substitute a known-good interlock control unit andr6check.
From page 14-91
Shift lever must be in E.
14-92
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Page 609 of 1395
Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Solenoid Valve A
Poslible Cause
. Dbconnected lock-up control solenoid valve A/B assemblY connector. Short or open in lock-up control solenoid valve A wire. Faulty lock-up control solenoid valve A' Open in vB SOL wire
LGI|BRN/BLK) LG2IBRN/BLK)
To page 14 95
(cont'd)
14-93
A t32Pli r rriltI l,1 I I ltDrste,0n,,2. t3r B'r!51 r.
LGl IBRN/BLKI LG2 (BRN/BLKI
Wire side of female terminals
A {32P)
.OBD ll Scan Tool indicatesCode Pl753.. Self-di.gnosis E or E indica-
tor light blinks once.
lf the PGM Tester is available,retrieve the M Freeze Data, then
clear the PCM.
Test-drive the vehicle under the
same conditions the Freeze Data
lntermittent failul.. The system is
OK at this time. Check the fit of
the Din3 in all connectors affected
by thb code.
Did the code return?
Check for a Short to Power:'1. Turn the ignition switch OFF.
2. Disconnect the B (25P) and D(16P) connectors trom thePCM,3. Turn the ignition switch ON (ll).
4. Measlre the voltage betweenthe D1 and 820 or 822 termi-nals,
n€pair short lo power in the wire
betw€€n the Dl terminal and the
lock-up control solenoid valve A
Mg.sure Lock-up Control SolenoidValve A Rssistance:1. Turn the ignition switch OFF.2. M easu re the resistancebetween the D1 and 820 or822 terminals.
ls the resistance 12 - 25 o?
To page 14-94
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Page 615 of 1395
TroubleshootingFfowchart - AIT Gear Position Switch {Short)
Possible Cau3e
. short in A/T gear position switch wire. Faulty A/T gear pGition switch
NOTE: Code 1705 (5) is set when the PCM receives two gear position inputs at
the same time,
PCM CONNECTORS
A (32P1
LGl IBRN/BLK) LG2 (BRN/BLK)
Wire side of female terminals
' O8O ll Scan Tool indicatas Code
P1705.. self-diagnGi3 E or El indica'
tor light blinks five time3
Obs€rve the A/T Goar Position
lndicalor:1. Turn the ignition switch ON (ll).
2. Observe the A/T gear Positionindicator, and shift each Posi'tion seParatelY.
The system is OK at lhis time.
Check the wir€ harne3s fot dam'
age.
Does any indicator stay on when
the shift lever is not in thatposition?
Moasu.e ATP R Voltage:1. Shift to all positions other
than E.2. Measure the voltage between
the D6 and 820 or 822 termi-nals,
Check for short in the wire
betwoon thc DS terminal and tho
A/T gear position switch or A/Tgear porition indicatol, and
check for open in the wires
batween the 820 and 822 t6lmi'
nals and body ground 1G1011. lf
wires are OK, check lor loos€ i€r_
minel fit in the PCM connectors.
lf necBsarv, substittlle a known'good PCM and recheck.
To page'14-100
(cont'd)
14-99
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Page 618 of 1395
Electrical Troubleshooting ('gg - 00 Modelsl
Troubleshooting Flowchart - A/T Gear position switch {short) (cont,d)
PCM CONNECTORS
B t25Ptc t3lPlD {16P1
LGl {BRN/BLK)
Wire side of female terminals
From page 14 101
Measure ATP 1 Voltag€:1. Shift to all positions otherthan E.2. Measure the voltage betweenthe D15 and 820 ot 822 tetmi-nals.
Chock lor short in the wirebetween the D15 terminal andthe A/T gear position switch orA/T gear position indicator. lfwires a.e OK, ch6ck for loos€ t6r-minal fil in tho PCM connectorc.ll neco$ary, substiiute a known-good PCM and rechsck.
Chock for loose terminalfit in thePCM connectors. lf nocessary,sub3titut€ s known-good PCMand recheck.The system 3hould be OK at thispoint. lf any indicators stay onwhen the shift lever is not in iheselect€d position, pertorm thistroubleshooting tlowchart again.
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Page 619 of 1395
Troubleshooting Flowchart - A/T Gear Position Switch (Open)
Po$iblg Cause
. Dbconnected A/T gear position switch connoctor. Open in A/T gear po3ition switch wiro. Faulty A/T g€ar position switch
Wire side of female terminals
LGl {SRN/BLK)
{cont'd)
P,CM CONNECTORS
LGT(BNN/BLKI LG2IBRN/BLK)
A {32P)c l31P)
ATP NP (LT GRN}
. OBD ll Scan Tool indicatesCodo Pl706.. Self-diagnosis Fl or E indica-to. lighl blinks six times.
The system is OK.tthis time.Check for oth6r probl€ms suchas harne3s damage.
Are any ofthe gear position indicators not working when you
shift them?
Test the A/T gear position switch(see page 14-139).
Measure ATP R Vohago:1. Turn the ignition switch ON (ll).
2. Shitt to E position.
3. Measure ihe voltage betweenthe D6 and 820 ot 822 tetfiinals,
Repair open in tho wiro betwoenthe D6 terminal and the A/T gear
oosition switch.
Measure ATP NP Volt.g€:1. Shift to Elor E position.
2. Measure the voltage betweenthe D13 and 820 or 822 terminals,
Repair open in the wiro betweenth€ Dl3 terminal and th€ A/Tgesr posilion awitch.
To page 14-104
14-103
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Page 622 of 1395
Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Shift Control Solenoid Valve A
Po$ible Caus€
'. Short or open in shift control solenoid valve A wire. Faulty 3hift control 3olenoid valvo A. Ooen in VB SOL wire
LGl
To page 14-108
(BRN/BLKILG2 (BRN/BLKI
A t32P) 8 {2sPl Ct3lPt ll Dll6Pt
LG1IBRN/BLKI LG2IBRN/BLK}
Wi16 side of femaleterminals
A (:l2Pl a t25Pl - c {31P}
. OBD ll Scan Tool indicatesCode P0753.. Self-diagnosis El or E indica-tor light blihk5 ievon times.
It the PGM Tester is available,retrieve the A"/T Freeze Data, thenclear th€ PCM.
Test drive the vehicle under thesame conditions the Freeze Data
Intermittent tailure. The systemb OX at this timo. Check the fito{ the pins in all connectora.ttected by this code.
Did the code return?
Ch6ck for a Short 1o Power:1. Turn the ignition switch OFF.2. Disconnect the B (25P) and D(16Pi connectors from thePCM,3. Turn the ignition switch ON (ll).
4. Measure the voltage betweenthe D7 and 820 or 822 terminals.
Repair short to power in the wirebetwoen tho D7 terminal and theshift control solenoid valve A.
Moasure Shift Control SolenoidValv6 A Resistanco:1. Turn the ignition switch OFF.2. [reasu re the resistancebetween the D7 and 820 or822 terminals.
ls the resistance l2 - 25 0?
To page 14-107
14-106
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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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