ac system HONDA CIVIC 1999 6.G Workshop Manual

Symptom-to-Com ponent Chart
Electrical System -'99 - 00 Models
r: The DTc in parentheses is the code E indicator light indicates when the Data Link connector is connected to the HondaPGM Tester.
DTCTE Indicatot
LighrMILDetostion ltemPage
P1705
(5)ElinksONA,/T gear position switch (short to grouno,14-265
P1706
(6)OFFONA"/T gear position switch (open)14-26€
P1870
(30)BlinksONShift control linear solenoid14-271
P1873
(31)BlinksONPH-PL control linear solenoid14-213
P1879
t32lBlinksONStan clutch control linear solenoid
Inhibitor solenoid
14-215
P1882(33)BlinksON't 4-277
P1885
(34)BlinksONDrive pulley speed sensol't 4-279
P1886
(35)BlinksONDriven pulley speed sensor14-281
P1888
(36)BlinksONSecondary gear shaft speed sensor
Shift control system
14-283
P1890
\421BlinksON14-245
P1891
(43)BlinksONStart clutch control system14-286
14-240

lf the self-diagnostic E indicator light does not blink. perform an inspection according to the table below.
SYmPtom
IDI indicator light does not come on for two seconds after ignition switch
is first turned ON (ll).
lE1 indicator light is on constantly (not blinking) whenever the ignition
switch is ON { ll).
InspectionRef. page
14-284
14-290
NOTE:
. lf a customer described the symptom for code Pl706 (6), it will be necessary to recreate the symptom by test driving,
then recheck the DTC.
. iometimes, tfre E indicator light and the Malfunction Indicator lamp (MlL) may come on simultaneously lf so, repair
the PGM-Fl system accordrng to the DTC, then reset the memory by removing the BACK UP RADIO fuse in the under-
hood fuse/relay box for more than 10 seconds. Drive the car for several minutes at a speed over 30 mph {50 km/h)' then
recheck the DTC.
14-241

Troubleshooting Flowchart - Shift Control System
NOTE: Record all freeze data before you troubleshoot.
Po$ible Cause
Faulty 3hift control systemOgD ll Scan Tool indicates Code
P'1890.Self-diagnosi3 E indicator light
indicates Code 42.
Check for Anolhet Code:
Check whether the E indicator
light indicates another code.
Pertorm the TroubleshoolingFlowchrrt to. th€ indicet.d
Codelsl.
ls the E indicator light indi
cate another code?
Check Stall Speed RPM:Measure the stall speed RPM(see page 14-298).
ls the stall speed over 3,500 rpm?
ls the slall speed below 2.0o0 rpm)
Test-drive and Check E ngine
Speed:1. Drive the vehicle at 30 mPh(50 km/h) constantlY for sev_
eral manutes.2. Check the engine speed
ls the engine speed within the
specification (see page 14 296
and 14 297\?
14-259

Electrical Troubleshooting ('96 - 98 Models)
Troubleshooting Flowchart - Start Clutch Control System
NOTE: Record all freeze data before you troubleshoot.
Po$ible Ceuaa
Frulty start clutch cont.ol 3ys-tem
14-260
OBO ll Scan Tool indic.le3 Cod6P1891.Solt-diagnosis E indicator lightindicates Code (1.
Check for Another Codo:Check whether the @ indicatorlight indicates another code.
Poiform tho TroublcahootlngFlowchrrt lor the indicat.dCode(sl.
ls the E indicator light indi-cate another code?
Test Strrt Clutch Oper.tion:1. Turn the ignition switch OFF.2. Disconnect the 8P connectorfrom the solenoid harness con,nector.3. Start the engine, and shift toE position.4. Check whether the vehiclemoves.
Rcplaca th. strrt dudt r$amt ly.
Check Creeping Spe€d:1. Turn the ignition switch OFF.2. Reconnect the 8P connector tothe solenoid harness connec-tor,3. Start the engin6, and shift toE position.4. Check whether the vehiclecreeps, and chock the creep-Ing speed.
Does the vehicle move and isthe creeping speed approx.3mph (5 km/h)?
To page 14-261
E

Troubleshooting Flowchart - Shift Control System
NOTE: Record allfreeze data before you troubleshoot
Possible cause
Faultv shift control svstem' OBD ll Scan Tool indicates Codo
P1Ato.. Self-diagnosis E indicator light
indicatos Code 42.
Check for Anoth€r Code:Check whether the E indicator
light indicates another code.
P€rform the Tloubleshooting
Flowchart for the indicated
Code(sl.
ls the E indicator light indi
cate another code?
Check Stall Speed RPM:
Measure the stall sPeed RPM(see page 14-298).
ls the stall speed over 3,500 rpm?
ls the stall speed below 2,000 rpm?
Test-drive and Check Engine
Speed:L Drive the vehicle at 30 mph
150 km/h) constantly for sev-
eral mlnutes.2. Check the engine speed
ls the engine speed within the
specification (see Page 14'296
and 14'297)?
14-245

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

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

Transmission
Gooler Flushing
@ To prevent iniury to face and eyes, alwayswear safety glasses or a tace shield when using thetransmission flusher.
NOTE: This procedure should be performed before rein-stalling the transmission.
'1. Check the tools and hoses for wear and cracks before
using. lf wear or cracks are found, reDlace the hoses
before using.
4.
Using the measuring cup. fill the tank with 2,1 ounces(approximately 2/3 full) of biodegradable flushingfluid (J35944 - 20). Do not substitute with any otherfluid. Follow the handling procedure on the fluidcontatner.
Secure the flusher filler cap, and pressurize the tankwith compressed air to between 5S0 - 829 kpa (5.6 -
8.45 kgf/cm', 80 - 120 psi).
NOTE: The air line should be equipped with a watertrap to ensure a dry air system,
Hang the tool under the vehicle.
Attach the tank's discharge hose to the return lineoi the transmission cooler using a clamp.
Connect the drain hose to the inlet line on the trans-mission cooler using a clamp.
IMPORTANT:
Securely clamp the opposite end ofthe drain hose to abucket or floor drain,
t
TRANSMISSION COOLERFLUSHER{Commercially available)Kent-Moore J384O5-Aor oouivalent
TRANSMISSION
14-352
7. With the water and air valves off, attach the water andair supplies to the flusher. (Hot water if available.)
8. Turn on the flusher water valve so water will flowthrough the cooler for 10 seconds.
NOTE: lf water does not flow through the cooler, itis completely plugged, cannot be flushed, and mustbe replsced.
9. Depress the trigger to mix the flushing fluid into thewater flow. Use the wire clip to hold the trigger down.
'10. While flushing with the water and flushing fluid fortwo minutes. turn the air valve on for five secondsevery 15 - 20 seconds to create a surging action.AIR PRESSURE: MAX 845 kpa (8.45 kgflcmr, 120 psi)
11. Turn the water valve off. Release the trigger, thenreverse the hoses to the cooler so you can flush inthe opposite direction. Repeat steps 8 through 10.
12. Release the trigger. and rinse the cooler with wateronly for one minute.
13, Turn the water valve off, and turn off the water supply.
'14. Turn the air valve on to dry the system out with airfor two full minutes or until no moisture is visibleleaving the drain hose.
CAUTION: Rosidual mobturo in the qooler or linescln damage the transmission,
15. Remove the flusher from the cooler line. Attach thedrain hose to a container.
16. Install the transmission. and leave the drain hoseattached to the cooler line.