Page 596 of 1395

Electrical Troubleshooting ('97 Modell
Troubleshooting Flowchart - Linear Solenoid
Possible Caus€
. Disconnocted linear solenoid con-
. Short or oDen in linear solenoid
. Fsultv linear solenoid
SOLENOID CONNECTOR
t-TTI t]]lt
tl I ? rl-T r
atll
L_l
PCM CONNECTOR B I25PI
LSM {WHTI LSP {RED)
LINEAR
Terminal side ot male terminals
Wire side of lemale terminals
. OBD ll Scan Tool indicates CodeP1768.. S.lt-diagnosis E indicator lightindicat* Code 16.
Check and record the freeze datain case it is needed later for prob
lem verification.
M€ssurc Linear Solanoid Re3ist-ance ei th€ Solonoid Connoctor:1. Disconnect the 2P connectorfrom the linear solenoid con-nector,2, Measure the resistance ol thelinear solenoid.
ls the resistance about 5.0 O?
Check Linear Solenoid {or a ShortCileuit:1. Disconnect the B (25P) connector from the PCM.2. Check for continuity betweenthe body ground and the B1terminal and 82 terminal individually.
Rooair short in the wires betweenthe Bl end 82 terminek .nd thelinear solenoid.
To page 14-81
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Page 597 of 1395
Ch€ck Ground Lin€:1. Disconnect the A (32P) con-nector from the PCM.2. Check lor continuity betweenterminals Ag and A10 andbetween terminals A22 andA.23.
Repair loose terminal or opon inth€ wires between terminals A9,A10, A22 and A23 and g.ound, andrepair poor ground lG101, G4011.
Measure Linear Solenoid R*ist-
ance:1. Connect the linear solenoid 2P
connector.2. Measure the resistancebetween the 81 and 82 terminals,
Ropair loos€ terminal or op6n in
the wiles between th€ 81 and 82
l6rminals and the linear solenoid.ls the resistance about 5.0 0?
Chock lor loose tarminalfit in thePCM connectors. lf necosaarv,subsiituto a known-good PCMand recheck.
PGl IBLKI
PG2 (ALKI
Wire side of temale terminals
14-81
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Page 599 of 1395

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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Page 601 of 1395

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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Page 633 of 1395

Po$ible Cau3e
' Disconnectsd linoar solenoid conneclol. Short or open in linear solenoid wire. Faulty linear 3olenoid. Open in VB SOL wire. Open in PGI and PG2 wires or poot g.ound {G101).
. OBD ll Scan Tool indic{t.. CodsP1768.. selt-diagnosis El or E indica-tor light indicrt.. Codo 16.
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
Inlermittont tailure, The 3yrtomis OK at thb time. Check the tit otlhe oins in all connectoE affoctodby this code.
Did the code return?
Meaaure Linear Solenoid R€sis-tanc€ at the Solenoid Connector:1. Disconnect the 2P connectorfrom the linear solenoid-2. Measure linear solenoid resis-tance at the solenoid connector.
ls the resistance about 5 O?
Chock Lino.r Sol.noid to. aShort Circuh:1. Disconnect the B (25P) con-nector lrom the PCM.2. Check tor continuity betweenbody ground and the 88 ter-minal and the 817 terminalindividually.
Repair 3ho to ground in thewires belween the 88 rnd B17terminals and tho linaar 3olenoid.ls there continuity?
A l32PtB {2sP)
LSP (REDI
To page 14-118
SOLENOID COiINECTOR
t-rtt
(9l
tt
LINEAR
Terminal side ol male terminals
wire side oI temale terminals
(cont'd)
14-117
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Page 634 of 1395

ElectricalTroubleshooting ('98 - 00 Models)
Troubleshooting Flowchaft - Linear Solenoid (cont'dl
Wire side of female terminals
LG2 {BRN/BLKI
From page 14-117
Measure Linea. Solenoid Resis-tance:1. Connect the linear solenoidconnector,2. Measure the resistancebetween the 88 and 817 termrnals,
Repair loose torminal oi open inthe wires between rhe 88 and817 terminals and the linearsolenoid.
ls the resistance about 5 O?
Measure VB SOL Voltago:1. Turn the ignition switch OFF.2. Disconnect the D 116P) con-nector trom the PCM.3. Turn the ignition switch ON (ll).4. Measure the voltage betweenthe D5 and 920 ot B22 tetmi-nals.
Check for blown No. 15 17.5 Alfuse in the under-da3h tus€/relaybox. lI the fuse is OK, rap.ir openin the wire betwe€n the D5 ter-minal and th€ under-dash tuso/relav box.
ls there baftery voltsge?
Check LG Wire for.n OpenCircuit:1. Turn the ignition switch OFF.2. Check for continuity betweenthe 820 terminal and bodyground, and between the 822terminal and body ground.
Repair op6n in the wirosbetwe€n the 820 and 822 termi-nals and body ground, and repairpoor g.ound iG101).
ls there continuity?
Chack tor loose terminel fit in thePCM connecto13. It nocosaary,substitute a known-good PCM.nd recheck,
a t32Plc t3lPl
LSP (REO)
a l32Pl
A (32P1
LGl IBRN/BLK}
B l2sP)c 13lPlD l16P)
14-118
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Page 653 of 1395

Linear Solenoid Assembly
Test
1. Disconnect the linear solenoid connector.
LINEAR SOLENOIO
Measure the resistance between the No, 1 and the
No. 2 terminals.
STANDARD: About 5.0 o
lf the resistance is out of specification, replace the
linear solenoid assembly.
Connect the No. 1 terminal of the connector to the
battery positive terminal and the No. 2 terminal to
the battery negative terminal, A clicking sound
should be heard.
1.
lf a clicking sound is not heard, remove the linear
solenoid assembly.
Check the linear solenoid fluid passage for dust or
orn.
Connect the No. 1 terminal of the connector to the
battery positive terminal and the No. 2 te.minal to
the battery negative terminal. Make sure that the
valve moves.
Disconnect the negative battery terminal. and make
sure the valve releases. You can see valve move-
ment through the fluid passage in the mounting
surface of the linear solenoid assembly.
LINEAR SOLENOID
VALVE
lf the valve binds, or moves sluggishly. or if the linear
solenoid does not operate, replace the linear solenoid
assemotv.
K
14-137
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Page 654 of 1395

Mai nshaft /Cou ntershaft
Linear Solenoid AssemblySpeed Sensors
Replacement
'1. Remove the mounting bolts and the linear solenoid
assemblY.
Clean the mounting surfaceand fluid passages.
6x1.0mm12 N.m (1.2 kg{.m.8.7 tbtftl
@
@
GASKET
Clean the mounting surface and fluid passage of the
linear solenoid assembly and transmission housing.
Install a new linear solenoid assemblv with a new
gasket. Do not pinch the gasket during installation,
and make sure it is installed properly in the mount-
ing groove of the linear solenoid.
Check the linear solenoid connector for rust. dirt, or
oil, then connect it securelv.
14-138
Replacement
1. Remove the 6 mm bolt and the countershaft sDeed
sensor from the end cover.
\
5x1.0mm12 N.m 11.2 kgf.m, COUNTERSHAFT8.7 rbf.frl SPEED SENSOR
O.RINGReplace.
12 N'm 11.2 kgl.m,8.7 tbf.ftl
Remove the 6 mm bolt and the mainshaft speed
sensor from the transmission housing.
Replace the O-ring with a new one before installing
the countershaft speed sensor or the mainshaft speed
sensor,
6x1.0mm
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