PCM CONNECTOR B (25P) lcont'd)
PCM CONNECTOR C {31PI
PCM CONNECTOR D II6PI
Terminal NumbelSignalDescriptionMeasuring Conditions/Terminal voltage
811SHBShift control solenoid valve B
control
In E, E position, in 1st and 2nd gear in -q,
Er position: Battery voltage
In B position, in 3rd gear in qd, q:l,in atn
gear in D. position: 0 V
812ILUlnterlock controlWhen ignition switch is ON (ll), brake pedal
deDressed and accelerator oedal released:0 V
B13D4 INDD4 Indicator light controlWhen ignition switch is first turned ON (ll): 6 V
or more for tlvo seconds
In lDll position: 6V or more
814NMSGMainshaft speed sensor ground
815NMMainshaft speed sensor signal
InpuI
Depending on engine speed: Pulsing signal
When engine is stopped: 0 V
816ATP RAy'T gear position switch Eposition signal input
In E position; OV
In other than E position: Battery voltage
817ATP 2Ay'T gear position switch E posi-
tion signal input
InEposition:0V
In other than E position: Battery voltage
B18ATP 1A/T gear position switch El posi-
tion signal input
InEposition:0V
In other than E position: Battery voltage
819 to 821Not used
B 22NCSGCountershaft speed sensor ground
NCCountershaft speed sensor signal
Inpur
Depending on vehicle speed: Pulsing signal
when vehicle is stooped: 0 V
824ATP D4A/T gear position switch iql posi-
tion signal input
In E position: 0V
In other than lgal position: Baftery voltage
825ATP NPAy'T gear position switch E and
N position signals input
In E and E positions: 0V
In otherthan @ and ffi positions:5 V
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
SCSService check signalWith ignition switch ON (ll) and service check
connector open: 5 V
With ignition switch ON (ll) and service check
connector connected with special tool: 0 V
c10VBUBack-up power system(under-hood Fuse 47)
Always battery voltage
Terminal NumberSignalDescriptionMeasuring Conditions/Terminal Voltage
STOP SWBrake switch signal inputBrake pedal pressedr Battery voltage
Brake pedal released: 0 V
14-49
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Terminal NumborSignalDescriptionMeasuring Conditions/Terminal Voltage
D1LCALock-up control solenoid valve A
control
During lock-up conditions: Baftery voltage
During no lock-up condition: 0 V
D2SHBShift control solenoid valve B
control
Battery voltage in following positions:
. E, E and positions
. E, -ql, and E positions in lst and 2nd gear
0 V in following positions:
. E, E;, and E positions in 3rd gear
. E and E positions in 4th gear
. E, El, and El positions
D3LCBLock-up control solenoid valve B
control
During full lock-up conditions: Battery voltage
During half lock-up conditions; Pulsing signal
D4Not used
D5VB SOLPower supply for solenoid valves
(Under-hood Fuse 15)
With ignition switch ON (ll); Battery voltage
With ignition switch OFF: 0 V
D6ATP RAy'T gear position switch
B position input
In E position: OV
In other than E position: Baftery voltage
D7SHAShift control solenoid valve A
control
Battery voltage in following positions:
. E position
. E, E, and E positions in 2nd and 3rd gear
. E position
0 V in following positions:
. E position. E. E, and E positions in lst gear
. Erl and E positions in 4th gear
.EandEpositions
D8
{'98 model}
ATP D3Ay'T gear position switch
E position input
In E position: 0V
In other than E position: Baftery voltage
D8
('99 - 00 models)
O/D SWOver-Drive (O/D) switch signal
input
When Over-Drive {O/D) is OFF (O/D OFF
indicator light is ON): 0 V
When Over-Drive {O/D) is ON {O/D OFF
indicator light is oFF): Battery voltage
D9ATP D4A/f gear position switch
E position input
In E position: 0V
In other than E position: 5 V
D10NCCountershaft sDeed sensor inoutDepending on vehicle speed: Pulsing signal
when vehicle is stopped: Approx.0 V
Dl1NMMainshaft speed sensor inputDepending on vehicle speed: Pulsing signal
When engine is stopped: Approx. 0 V
D12NMSGMainshaft speed sensor ground
D13ATP NPA,/T gear position switch E and
El positions input
InEandEpositions: 0V
In other than E and m position: 5 V
D14AlP 2A/T gear position switch
El position input
InE position; 0V
In other than E position: Battery voltage
D15ATP 1A,/T gear position switch
E position input
InEposition:0V
ln other than El position: Battery voltage
D16NCSGCountershaft speed sensor
grouno
PCM CONNECTOR D (16P)
14-55
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From page 14 82
Replace the Lock-up ControlSolenoid Valve Assembly andRecheck:1. Replace the lock-up controlsolenoid valve A/B assembly(see page 14-'135).2. Turn the ignition switch OFFand reset the PCM by remov-ing the BACK uP (7.5 A) fusein the under-hood fuse/relaybox for more than 10 seconds.3. lJsing the scan tool, check tobe sure that the engine coolanttemperature is 176"F 180'C) orabove,4. Drive the vehicle at 55 mph(88 km/h) constantly for moretnan one mrnute.5. Recheck for code P0740 (40).
Does the OBD ll scan tool indicatecode PO74O or doesthe El indicator light indicate code 40?The svstem is OK ai this time.
Replace the Linear Sol€noidA$embly and Recheck:'1. Beplace the linear solenoidassembly {see page 14-138).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)fuse in the underhood 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 for more thanone minute,5. Recheck for code P0740 {40).
Does the OBD ll scan toolindicate code P0740 or doesthe E indicator light indicate code 40?
The svsteo is OK at this tim€.
Replace the transmission andtorque convertor assembly.
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Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - Shift Control System
Possible Cause
F""lty "t lft ".tttr"l "y"t..
+ Even it you cannot reproduce codeP0730, test drive the vehicle, test theclutch pressures, and if necessary,replace the shift control solenoid valve
. OBD ll Scan Tool indicates CodeP0730.. Selt-diagnosis E,l indicatorlight indicates Code 41.
Check and record the freeze datain case it is needed later for prob-lem verification.
Check tor Another Code:Check whether the OBD ll scantool or the Pll indicator lightindicates another code,
Pertorm the TroubleshootingFlowchart for the indicatedCodels). Do not conlinu€ withthis troubleshooting until thecauses of anv other DTCS havebeen corrected. Recheck for codeP0730 {41) after troubloshooting.
Does the OBD ll scan tool orthe E indicator light indi-cate another code?
Test lst. 2nd, 3rd. and 4th ClutchPressure:Measure the 1st, 2nd, 3rd, and4th clutch pressure (see page 14-161 thru 14-163).
Repair the hydraulic svstem asnecessary lsee page 1,1-162 andr4-1631.
ls each clutch pressure withinthe service limit?
To page 14-85
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Replace Shift Control Solenoidvslve Assembly and Recheck:1. Replace the shift controlsolenoid valve A/B assembly(see page'14 136).2. Turn the ignition switch OFFand reset the PCM memory byremoving the BACK UP (7.5 A)fuse in the under-hood fuse/relay box for more than 10seconds.3. Drive the vehicle at over 12mph (20 km/h) in 1st,2nd,3rd,and 4th qear for more than 30seconds in E position.
4. Recheck for code P0730 (41).
Does the OBD ll scan toolindicate code P0730 or doesthe E indicator light indicate code 41?
The svstem is OK at this time.
Replace Linea. Solenoid Ass€mblyand Recheck:1. Replace the linear solenoidassembly lsee page 14-138).2. Turn the ignition switch OFFand reset the PcM memory byremoving the BACK UP 17.5 A)fuse in the underhood fuse/relay box tor more than 10 sec'onos.3. Drive the vehicle at over '12
mph {20 km/h) in 1st,2nd,3rd,and 4th geal for more than 30seconds in -Da position.
4. Recheck for code P0730 (41).
Does the OBD llscan toolindicate code P0730 or doesthe Di indicator light indi-cate code 41?
The syslem is OK at this time.
From page 14-84
14-85
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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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Electrical Troubleshooting ('98 - 00 Models)
Troubleshooting Flowchart - Lock-up Control Sotenoid Valve B
Possibl€ Cause
. Disconnected lock-up control solenoid valve A/8 assembly connector. Short or open in lock-up control solenoid valve B wire. Fauhy lock-up control solenoid valve B. Open in VB SOL wir€
PCM CONNECTORSLC B {GRN/8LKI
LG1{BRN/BLK} I-G2{BRN/BLK)
Wire side of female terminals
A {32P1
To page 14 98
.OBD ll Scan Tool indicatesCode P'l758.. Sell-diagnosis Dl or E indica-tor light blinks twic€.
lf the PGM Tester is available,relrieve the A,/T Freeze Data, thenclear the PCM-
Test-drive the vehicle under thesame conditions the Freeze Data
Interm ittant tailure. The lystem isOK at this time. Check the tii ottho pin3 in all connectors athedby this code.
Did the code return?
Check for a Short to Pow€r:1. Turn the ignition switch OFF.2. Disconnect the B 125P) and D(16P) con nectors lrom thePCM.3. Turn the ignition switch ON 1ll).4. Measure the voltage betlveenthe D3 and 820 or 822 termi-nals.
Repair shon to power in the wirebetween tho D3 terminal and thelook-up control solenoid valve B.
Measure Lock-up Control SolanoidValve B Resistanc€:1. Turn the ignition switch OFF.2. Measure the resistancebetween the D3 and 820 or822 terminals.
ls the resistance 12 - 25 O?
To page 14-97
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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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