1997 HONDA CIVIC Disc

Electrical Troubleshootang ('gg - 00 Models)
Troubleshooting Flowchart - Start Clutch Control System
Possibl€ Cause
Faultv start clutch control sys-lem
NOTE: Record allfreeze data before you troubleshoot.
fo page 14 287
. OBD ll Scan Tool indicates CodeP1891.. Self-diagnosis E indicator tightindicates Code 43.
Check for Another CodelCheck whether the E indicatorlight indicates another code.
Perform the TroubleshootingFlowchart tor the indic.tedCodelsl.
ls the E indicator light indi-cate another code?
Test Stsn Clutch Operation:1. Turn the ignition switch OFF.2. Disconnect the 8P connectorfrom the solenoid harness connector.3. Start the engine, and shift toE position.4. Check whether the vehiclemoves.
Repl.c€ the stan clutdt rasemHy.
Check Croeping Sp€6d:1. Turn the ignition switch OFF.2. Reconnect the 8P connector tothe solenoid harness connec
3. St€rt the engine, and shift toE posation.4. Check whether the vehiclecreeps, and check the creeping speed.
Does the vehicle move and isthe creeprng speed approx, 3mph (5 km/h)?
14-2A6

Electrical Troubleshooting ('99 - 00 Models)
Troubleshooting Flowchart - El Indicator Light Does Not Come On
PCM CONNECTOR B I25PI
LGl {BRN/BLK)
Wire side ot female terminals
LGlIARN/BLK) LG2IBRN/BLKI
The D indicator light does notcome on whon ths ignhion switchis tirst turned ON {lll. llt shouldcome on tor about two s€conds.)
Check the Service Check Connec-tor:Make sure the special tool {SCSService Connectorl is not connected to the service check con-nector,
ls the special tool (SCS
Service Connectorl connectedto the service check connec-tor?
Disconnect the sp€cial tool f]omthe seruice chcck connoclor andaecheck.
Check the E Indicalor Light:Shift to E posjtion.
Check tor loose te.minal fit in thePCM connectors, lf nocessary,substitute a known-good PCMand aecheck.
Does the E indicator light
Check the Ground Circuit:1. Turn the ignition switch OFF.2. Disconnect the B (25P) connector from the PCM.3. Check tor continuity betweenthe 820 terminal and bodyground, and between the 822terminal and body ground.
Fepair open in th. wirosb€tw.en the 820 end 822 termi-nals and ground {G1011, !ndrepair poor ground {G1011.
ls there continuity?
Measure Power Supply CircuitVoltage:1. Turn the ignitlon switch ON (ll).
2. Measure the voltage betweenterminals Bl and 822 andbetween terminals B9 and820.
Ropair op€n or short in tho wireb€tween the Bl and/or B!| tarmi-nds and the PGM-FI main .ohy,and between tho PGM-FI mainrelay and the under-hood fuso/r€lav box.
ls there battery voltage?
To page 14-289
14-2AA

ElectricalTroubleshooting ('gg - 00 Models)
Troubleshooting Flowchart - E Indicator Light On Constantly
FCM CONNCCTOR D tl6PI
23I5
61t012
tsll / rc
II D4 rND
o
(GRN/BLK)
Wire side of female terminals
rcM CONNECTOR A I32PI
ATP Dil {YELI
Wire side of lemale terminals
The E indicator light is on con-stantly {not blinkingl wheneverthe ignition switch is ON lll|.
Mersure D IND Voltage:1. Turn the ignition switch OFF.2. Disconnect the D (16P) con-nector from the PCM.3. Turn the ignition switch ON (ll).4. Measure the voltage betweenthe 014 terminal and bodyground,
Repair short to power in tho wirebstween the Dl4 termin.l sndthe gaug€ r3sembly.
Measure ATP DVoltage:1. Turn the ignition switch OFF.2. Connect the D (16Pi connec-tor to the PCM.3. Turn the ignition switch ON lll).4. Shift to any position other thanE,5. lMeasure the voltage betweenthe 47 terminal and bodyground.
ls there approx. 10 V?
Test the A/T gear position switch{see section 23).
Check for a shorl lo ground inthe wire between tho A7 termi-nal and A/T ge.r polition switch.l, wire is OK, substitute a known-good PCM and recheck.
14-290

Linear Solenoids/lnhibitor Solenoid
)Test
1. Disconnect the 8P connector from the solenoid har-
ness connector.
SOLENOID HARNESSCONNECTOR
ATF OIPSTICK
Measure the resistance of the shift control linear
solenoid between the No. 3 and No. 7 terminals of
the solenoid harness connector.
Measure the resistance of the PH-PL control linear
solenoid between the No. 2 and No. 6 terminals
Measure the resistance of the start clutch control
linear solenoid between the No 4 and No. 8 termi-
nats,
STANDARD:38-6.8O
Measure the resistance of the inhibitor solenoid
between the No. 5 terminal and body ground
STANDARD:11.7 - 21.0 O
Replace the lower valve body assembly if any
solenoid resistance is not within its standard.
7. lf all ot the resistances are within the standard, a
clicking sound should be heard when connectrng
the batterv terminals to the solenoid harness con-
nector terminals below:
Shift control linear solsnoid
No.3: Batterv Positive terminal
No. 7: Battery negative terminal
PH-PL control linear solenoid
No.2: Batterv oositive terminal
No. 6: Baftery negative terminal
Start clutch control linear solenoid
No. 4: Battery Positive terminal
No.8: Battery negative terminal
lnhibitor solsnoid
No,5: Batterv Positive terminal
Body ground: Battery negative termrnal
SOLENOID HARNESS CONNECTOR
Terminal side of male terminals
lf no clicking sound is heard, replace the lower
valve body assemblY,
NOTE: lf the lower valve body assembly replace-
ment is required, see Lower Valve Body Assembly
Replacement (page 14-302).
14-291

Drive Pulley/Driven Pulley/Secondary Gear Shaft Speed
Sensors
Replacement
CAUTION: While replacing the speed sensor, be sure not to allow dust and other foreign parliclos to enter into the trans-mission.
'1. Disconnect the connectors for the drive pulley, the driven pulley, and the secondary gear shaft speed sensor.
2. Remove the 6 mm bolt from the transmission housing, and remove the drive pulley. the driven pulley, and the sec-ondary gear shaft speed sensors.
3. Replace the O-rings before reinstalling the drive pulley, the driven pulley, and the secondary gear shaft sp€ed sen-sors.
6x1.0mm12 N.m (1.2 kgf.m,8.7 lbf.ft)
6x1.0mm12 N.m (1.2 kgt.m,8.7 tbf.ft)
DRIVEN PULLEY SPEED SENSOB
14-292

Start Clutch Control@
T
Start Clutch Calibration Procedure
NOTE: When the following parts are replaced, the TCM
must memorize the feedback signal for the start clutch
control.
. TCM
. Transmissionassembly
. Stan clutch assembly
. Lower valve bodv assembly
. Engine assembly or overhaul
'96 Model Only
CAUTION: Do not uso this procsdure on'97 - (X) mod-
els or you will damage the transmission. On '97 - 00
models, the TCM or PCM memorizes ths loodback sig'
nals when you drive the vehicle.
1. Engage the parking brake, and block the front
wheels securely.
2. Connect the SCS service connector to the Service
Check Connector as shown. (The Service Check
connector (2P) is located under the dash on the
passenger's side of the vehicle.)
CONNECTOR07PAZ - lDl01(xt
Start the engine, and warm it up to normal operat-
ing temperature (the radiator fan comes on twice).
Fully depress the brake pedal and accelerator for 20
seconds in the E] position.
rl ,
CONNECTOR I2PI
14-293
7.
Shift into E o|. E position. To store the engine
negative pressure in memory. Iet the engine idle in
E or E position for one minute under the follow-
ing conditions:
. With the brake pedal depressed,
. with the y'\/c switch oFF.
. With the combination light switch OFF.
. With the heater fan switch OFF.
. Turn OFF all other electrical systems
NOTE: Start step 5 within 60 seconds after the radi-
ator fan goes off.
Shift into E position, and let the engine idle for two
minutes to store the feedback signal in memory
under the same conditions as in step 5.
Connect the Honda PGM Tester. Check that the TCM
has completed the start clutch calibration.
NOTE:
. The TCM will not store the feedback signal when
the CVT fluid temperature is below 40"C (104'F)
even if the engine coolant temperature reaches
the normal operating temperature.
. Repeat these procedures until the start clutch
calibration is completed-
Disconnect the SCS service connector from the
Service Check Connector.
'97 - 00 Models
The TCM ('97 - 98 models) and PCM ('99 - 00 models)
memorize the feedback signal when you drive the
vehicle as follows:
. After warming up the engine (the radiator fan
comes onl.
. Shift into E position.
. Turn OFF all electrical systems,
. Drive the vehicle up to the speed 37 mph (60
km/h).
. After the speed reaches 37 mph (60 km/h),
release the accelerator for 5 seconds.

1.
Start the engine.
Shift to the respective shift lever positions in the table, and measure the following pressures at 1'500 rpm'
. Forward Clutch Pressure
. Reverse Brake Pressure
. Drive Pulley Pressure
. Driven Pulley Pressure
8. Shift to E posltion, and measure the lubrication pressure at 3,000 rpm'
Disconnect the special tool after pressure testlng
Install the sealing boits in the jnspection holes with new sealing washers, and tighten the bolts to the specified
toroue.
TOROUE: 18 N.m {1.8 kgf'm, 13 lbf'ft}
CAUTION: Keep all foreign particles out of the transmission'
9.
10.
PBESSURESHIFT LEVER
POSmONSYMP{OMPROBABLE CAUSE
FLUID PRESSURE
Standard/Ssrvice Limit
Forwa rd
Clutch
ENo or low for-
ward clutch
pressure
Forward Clutch1.4 - 1.75 MPa
(14.3 - 17.8 kgtcm', 203 - 253 Psi)
Reverse
Brake
tsNo or low
reverse brake
pressure
Reverse Brake1.4 - 1.75 MPa
(14.3 - '17.8 kg7cm', 203 - 253 Psi)
Drive
Pulley
NNo or low
drive pulley
pressure
ATF pump, PH reg-
ulator valve, PL
regulator valve,
Shift valve
0.2 - 0.7 MPa
(2 - 7.1 kgflcm', 28 - 101 Psi)
Drive pulley
pressure roo
high
PH regulator valve,
PL regulator valve,
Shift valve. Shift
control linear
solenoid
Driven
Pulley
No or low
driven pulley
pressure
ATF pump, PH reg-
ulator valve, Shift
valve, Shift control
linear solenoid
1.5 - 2.3 MPa
(15.3 - 23.5 kg?cm', 218 - 334 Psi)
Driven pulley
pressure too
h igh
PH regulator valve
LubricationNo or low
lubrication
pressure
ATF pump,
Lubrication valve
Above 0.2 MPa
(Above 2 kgf/cm'. 30 Psi)
14-301

Lower Valve Body Assembly
Replacement
@ Make sure lifts, iacks, and saf€ty stands
are placsd prop€rly {sea section 1).
CAUTION: While removing and installing th6 lower
valve body asssmbly, b€ sule not to allow dust and
other for€ign particles to entsr inio the transmksion.
1. Raise the front of the vehicle, and support it with
safetv stands (see section 1).
2. Set the parking brake, and block both rear wheels
securetv.
4.
6.
Remove the drain plug, and drain the CVT fluid.
Reinstall the drain plug with a new sealing washer(see page 1+299).
CAUTION: Keop all of other toreign parliclos out of
the transmission.
Disconnect the 8P connector from the solenoid har-
ness connector.
Remove the ATF cooler hoses at the ATF cooler
lines. Turn the ends of the ATF cooler hoses up to
prevent ATF from flowing out, then plug the ATF
cooler noses.
CAUTION: Keep all of other foroign particlo3 out of
tho transmission.
Remove the right front mounvbracket.
10 x 1.25 mmila N.m (,1.5 kgf.m, 33 lbtft)
RIGHT FRONTMOUNT/BRACKET
ATF COOLER LINE
10 x 1.25 mmsil N.m 15.5 kgf.m,40 rbr.ft)
ATF COOLER HOSE
14-302
14.
7. Remove the ATF cooler outlet line.
8. Remove the ATF cooler line bracket bolt.
9. Remove the ATF pan (fourteen bolts).
10. Remove the ATF strainer (two bolts).
1 l. Remove the one bolt securing the solenoid harness
connector,
12. Remove the
bolts).
lower valve body assembly (eight
LINE BOLT28 N.m (2.9 kgtm,21 lbtft)SEALINGReplace.
ATF COOI.-EROUTLET
OOWEL PIN
O.RINGFeplace.
SOLENOIO HARNESSCONNECTOR
5x1.0mm12 N.m 11.2 kgt.m,8.7 tbt.ftlO.RINGReplace.ATFSTNAINER
6x1.0mm12 N.m 11.2 kgt m,E.7 tbt'ft)
OOWEL NN
BODY ASSEMBLY
6x1.0mm12 N.m 11.2 kgf.m,8.7 rbf.ft)
ATF PAN GASKETReplace.
VALVE
ATF COOLER INLETUNE BRACKET BOLT8 x 1,25 mm26 N.m {2.7 kgf.m,20 tbf.frl
13.
ATF PANx 1.0 mm12 N.m 11.2 kgf.m, E.7 lbf.ftl
Install the new lower valve bodv in the reverse
ordgr of the removal orocedure.
CAUTION: Koep all ot other fo.oign particles out of
ths transmission.
NOTE:
. Replace the following parts:
- O-rings on the solenoid harness connector
and the ATF strainer- ATF pan gasket- Sealing washers
. lf the ATF cooler inlet line bracket is bent or
warped, put it back to the original position.
Perform the start clutch calibration orocedure on
page 14-293.