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
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.
Symptom-to-Component Chart
Hydraulic System
*1: Some gear noise is normal in the Lll position due to planetary gear action.
14-294
SYMPTOMCheck these items on the PBOBABLE CAUSE List
Engine runs, but vehicle does not move in any position.'t,2,3,4,5,6,7,8,9, 10, 20, 34, 35, 36, 38, 41
Vehicle does not move in @, [. p positions.10,11, 12, 20, 41
Vehicle does not move in E position.5, 'to, 11, 12, 17, 1A, 19, 20,39, 41
No shift to higher ratio,9, 13, 14. 15, 16,35,37,40
Poor acceleration.9, 13,' t4,'t5,16. 20, 35, 37, 38, 40
Flares on moving.9,'t0, 20, 2't, 35, 36, 38, 40, 42
Excessive shock when depressing and releasing.^^alA/.r^r ^A.1. I9, 10, 20, 2'1, 35, 36, 3A, 42
No engine braking.9,20,21,35,36,38
Vehicle does not accelerate in lll position.9, 17, 18, 19, 20. 35, 36, 38
Vehicle moves in E position.
(Shift cable adjustment is proper).10, 22,23
Late shift from N position to E position, and from Eposition to E position.'10,11, 12,22, 41
Late shift from E position to E position. and from Eposition to N position.1l,'t2, 17, 18,22, 41
Engine stops when shifted to E position from E position.9, 10,20,35,37,34, 42
Engine stops when shifted to E position from I position.9, 18, 19,20,25,26,35,37,38, 42
Noise from transmission in @ position.rl5, 17, 18, 't9,25,26
Excessive idle vibration.2,3,4,21,24
Noise from transmission in @ and @ positions.2,3, 19,24,25,2A
Hunting engine speed.16, 35, 37, 38
Vibration in all position.8, 2a
Shift lever does not operate smoothly.11,29, 4'l
Transmission will not shift into lll position or transmis-
sion cannot be removed from E position.11 , 29, 30, 31, 32,33
Vehicle does not accelerate to more than a certain speed.9, 10, 14, 15,'t6,20,35,37
Excessive shock on starting off.38, 42
Flares on accelerating at low speed.20, 21 ,38, 42
Excessive vibration in E, E, tr, E positions.20,21,38, 42
Low engine speed in E. E. tr. E positions.20,21,38,42
Stall speed high.10,20,38
Stall speed low.9, 20, 27 ,37 , 38
Judder on starting off.20, 43
t.
rl,
fl,
PROBABLE CAUSE LIST
Low CVT fluid level
ATF pump worn. AT gears worn or damaged. Foreign material in ATF pump.
ATF pump chain/ATF pump sprocket worn or damaged.
Input shaft worn or damaged.
Sun gear worn or damaged.
Final driven oear worn or damaqed,
Secondary drive gear/secondary driven gear worn or damaged-
5
6
1
8Flywheel/drive plate worn or damaged.
Intermediate housing assembly worn or damaged.9
'10Forward clutch defective.
Shift cable broken/out of adiustment.
M"nu"t t"uffi
ATF feed pipe (pulley pressure) worn or damaged.
Vchiclc speed sensor defective.
TCM or PCM defective.
Reverse brake detective.
1' r
't2
13
14
16
'11
'18
1qPlanetary gear worn or damaged.
Sta rt clutch defective.
ATF feed pipe (start clutch pressure) worn or damaged
20
t't
Clutch clearance/reverse brake clearance incorrect.
23Reverse brake return spring/retainer worn or damaged
24Needle bearing on input shaft worn or damaged.
25Thrust needle bearing on carrier worn or damaged.
Thrust washer on carrier worn or damaged.
Enoine outout low.------------------------
Flvwhcel assemblv defective.
Control lever worn or damaged.
Park pawl/park pawl shaft worn or damaged
Detent lever/park brake rod assembly worn or damaged
27
29
30
32Park gear worn or damaged.
Park pawl spring worn or damaged.
ATF strainer/ATF filter clogged.
Lower valve body assembly defective.
Lower valve bodv assemblv defective (PL regulator valve body assembly defective)'
33
34
50
Lower valve bodv assembly defective (shift valve body assembly defective).
Lower valve bodv assemblv defective (start clutch control valve body assembly defective)'
39Lower valve bodv assemblv defective {inhibitor solenoid defective}
40Solenoid harness worn or damaged.
Manual valve body worn or damaged.
PB feedback system defective.
CVT fluid deteriorated.
41
43
14-295
Road Test
NOTE: Warm up the engine to normal operating temperature (the radiator fan com6s on).
1. Apply the parking brake and block the wheels. Start the engine, then shift to the E position while depressing the
brake pedal. Depress the accelerator pedal and release it suddenly. The engine should not stall.
2. Test in E position
Park the vehicle in a slope (approx. 16'). apply the parking brake, and shift into E position. Release the brake; the
vehicle should not move.
3. Test-drive the vehicle on a flat road in the position shown in the table. Check that the engine speeds meet the approx-imate vehicle speeds shown in the table.
NOTE: Throttle position sensor voltage represents the throttle opening. To monitor the throttle position sensor volt-age, use one of the following methods:
A. Connect the Honda PGM Tester, and go to the PGM-FI Data List.
A1For road testing on '96 - 98 models, remove the drive/s side kick panel to expose the TCM; on '99 - OO models,remove the passenger's side kick panel to expose the PCM (see page l,[-236),
Set the digital multimeter to check throttle position sensor voltage between terminals:. '96 - 98 modols: TCM 84 {+} and Aa (-) or A17 (-1.. '99 - 0O models: FCM C27 {+l and 820 (-l ot 822 l-1.
DIGITAL MULTIMETER(Commerci.lly rvrilabl.lKS-AHM-32-003or oquivalant
BACKPROBE ADAPTER
BRN/BLK
A {26P1
TPS {BED/BLK}
'96 - 98 Models:
BRN/BLK
14-296
OBD ll SCAN TOOL orHONOA PGM TESTER
D{16Pt
Ware side ot female terminals
Wire side of female terminals