Page 585 of 1395
From page 14-68
Measure ATP D4 Voltage:1. Shift to all positions other than
Eil2. [/leasure the voltage betweenthe 824 and Ag or A22 termi-nals.Check tor short in the wire
between the 824 terminal and theA/T geai position indicator. or a
3hort in the wir6s between theA/T gear position indicttor and
the A/T gear position switch. lf
wires are OK, check lor loose ter'minal fit in the PCM conneclo.s. lf
necessary, substitute a known'good PrCM and recheck.
ls there approx. 5 V?
M€asure ATP D3 Voltage:L Shift to all positions other than
tr.2. Measure the voltage betweenthe 88 and A9 or A22 terminats.
Check for short in the wi.ebetween the 88 torminal and the
A/T gear position switch or A/Tgear position indicator. lf wire i3
OK, check lor loose terminaltit in
the PCM connectors. lf neces-
sarY, 3ubslitute a known'goodPCM and recheck.
ls there baftery voltage?
Measur€ ATP 2 Vohage:1. Shift to all positions other thanl;
2. Measure the voltage betweenthe 817 and Ag or A22 termi'nals.
Check for short in the wire
bstwe€n the 817 terminal and the
A/T gear posilion switch or A/Tgear position indicator. lf wire is
OK, check lor loose terminal fit in
th6 PCM conn€ctoF. lf nec€ssaty,substitute a known-good PCMand recheck.
Mersure ATP 1 Volt.ge:1. Shift to all positions other than
El.2. Measure the voltage betweenthe 818 terminal and A9 orA22 terminals.
Check lor short in the wire
betw.en the 818 torminal and
the A/T gear position switch or
A/T gear position indicator. lI
wiro is OK. check for loose termi-nal fii in the PCM connectorc. lf
necessary. substitute a known'good PCM and recheck.
ls there battery voltage?
Check for loose terminalfit in thePCM connectors, lf neces3aty,substitute e known-good PCMend rocheck.
Wire side of female terminals
14-69
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Page 586 of 1395
Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - A/T Gear position Switch (Openl
Po$iblo C.u3e
. Disconnected A/T gear positionswitch connectol. Open in A/T goar position switch
. Faulty A/T goar position switch
Wire side ot temale terminals
ATP NP ILT GRNI
. OBD ll Scan Tool indicat6 CodeP1706.. Setf-diagnGb Dl indicator tightblinks six tim$.
Check and record the freeze datain case it is needed later for prob-lem verilication.
Test the A,/T gear position switch{see page 14139).
Measu.e ATP R Voltage:'1. Turn the ignition switch ON (ll).2. Shift to E position.3. Measure the voltage betweenthe 816 and Ag or A22 termi-nals.
Repeir op€n in the wire botweenthe 816t€rminaland the A/T g€.rpo3ition switch.
Measure ATP NP Voltage:1. Shift to E or E position.2. Measure the voltage betweenthe 825 and A9 or A22 termi-na ls,
Repai. open in th6 wir6 bctwoanthe 825 terminal and tho A/T gearpolition indicltor or tho A/T gea.Doshion swhch.
Moasure ATP 04 Voltage:1. Shift to E position.2. Measure the voltage betweenthe 824 and A9 or A22 termi-nars,
Ropai. opcn in tho wiro betwoenthe B24 torminal .nd the A/T gcarDosition switch.
To page 14-71
14-70
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Page 587 of 1395
From page 14-70
Measure ATP D3 Vohag€:1. Shift to E position.
2. Nleasure the voltage betweenthe 88 and Ag or A22 terminals,
Repair open in the wirg bstween
the 88 tolminal and tho A/l gear
oo3ition 3witch.
Msasure ATP2 Volttg6:'1. Shiftto E position.
2. Measure the voltage between
the 817 and A9 or A22 termi'nals.
Repair open in lhe wire between
the 817 terminal and tho A/Tgear position switch.
Moasure ATP1 Voltage:1. Shift to A position.
2. Measure the voltage betweenthe 818 and Ag or A22 termi-nats,
R€pair opon in the wiro betweenthe 818 terminll and the A/Tgoar poshion switch.
Check tor looso terminal fit in thePCM connectors. lf necossarY,substitute a known-good PCM
and rechock.
FCM CONNECTORS
Wire side of female terminals
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Page 588 of 1395
Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - Shift Control Solenoid Valve A
. Disconnected shift control solenoidvalve A/8 a$embly connector. Short or open in shift control sole-noid valve A wire
Possible Causo
shift control solenoid valve A
lf the Honda PGMTester is available:
I
PCM CONNECTORS
Wire side of female termin6ls
. OBD ll Scan Tool indicates CodeP0753.. Self-diagnosk E indicator lightblinks seven tim€s.
Check and record the freeze datain case it is needed later for problem verification.
Perform the shift control solenoidvalve A test using the HondaPGM Tester.
The sol€noid is OK at this time.Verify that all connectors in thecircuit are making good contact.
Did the solenoid pass the test?
Check tor a Short to Power:1. Turn the ignition switch OFF.2. Disconnect the A (32P) and B(2 5P) connectors from thePCM.3. Turn the ignition switch ON lll).4. Measure the voltage betweenthe 83 and Ag or A22 terminals.
Repair short to power in the wirebetween the 83 terminal and theshift control solenoid valve A.
Measure Shift Control SolenoidValve A Resistanco:1. Turn the ignition switch OFF.2, Measure the resistancebetween the 83 and A9 or A22termrnals,
Check tor loose terminal tit in thePCM connectors, lf necessaay,subslituie e known-good sole-noid valve assemblv or PCM andrech€ck.
ls the resistance 12 25 {)?
To page l4-73
14-72
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Page 590 of 1395
Electrical Troubleshooting ('97 Model)
Troubleshooting Flowchart - Shift Control Solenoid Valve B
Po33ibla Crusa
. Disconnec{ed shift cont.ol solenoidvalve A/B dssombly connector. Short or open in shift conlrol sole-noid valvg B wire' Faultv shift comrol 3olenoid valvo B
lf the Honda PGMT€ster is available:
PCM CONNECTORS
Wire side ot female terminals
. OBO ll Scan Toot indicrt8 CodoP0758.. Setf-diagnGis E indicator lightblinks oight tim93.
Check and r€cord the lreere datain case it is needed later for prob
lem verilication.
Test solenoid valve B with theHonda PGM Tester in the FLrnction test mode.
The 3olonoid is OK at this time.Verifv that all connoctors in thecircuit are making good contlct.Did the solenoid Dass the test?
Chock tor a Sho.t to Power:1. Turn the ignition switch OFF.2. Disconnect the A (32P) and B{25P) connectors Irom the PCM.3. Turn the ignition switch ON (ll).
4. Measuro the voltage botveenthe 811 and Ag or A22 termi-nats.
R.p.ir 3hort to power in the wirebotwo€n the 811 iormin.l andtho shift control sol.noid valve B.
M.6sure Shift Control SolonoidValve B Reaistanco:1. Turn the ignition switch OFF.2. Measure the r€sistancebetween the 811 and A9 orA22 terminals.
Checl lor loosc terminal fil in thePCM connactors. It nocessarv,substitute a known-good aole-noid vllvo asssmbly or PCM andr6chsck,
ls the resistance 12 - 25 O?
To page 14-75
14-74
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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 602 of 1395
Electrical Troubleshooting ('97 Modell
Troubleshooting Flowchart - E Indicator Light On Constantly
PCM CONNECTOR B I25PI
IGRN/8LKI
Wire side of temale terminals
The E indicator light is on con-stantly {not blinking) wheneverthe ignition switch b ON (lll.
Measure D4 IND Voltage:'1.
2.
3.4.
Turn the ignition switch OFF.Disconnect the I (25P) connec-tor lrom the PCM.Turn the ignition switch ON lll).Measure the voltage betweenthe 813 terminal and bodygrouno,
Ropair short to powor in the wirebetwean tho B13 terminal andtho gauge assembly.
Maa3ure ATP D4 Voltage:1. Turn the ignition switch OFF.2. Connect the B (25P) connectorto the PCM.3. Turn the ignition switch ON (ll).
4. Shiftto any position other than
E.5. Measure the voltage betweenthe 824 terminal and bodyground.
Test the lVT gear position switch(see page '14 139).
Check lor a short to g.ound inthe wire betwoen tho B2rl te.minal and A/T gear position switch.It wira i3 OK, substitute a known-good PCM and r€check.
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