1999 HONDA CR-V Trouble shooting

DATA LINK CONNECTOR {DLC) I16P}Troubleshooting Procedures, page 1 1'60PRIMARY HEATED OXYGEN SENSOR
{PRIMARY HO2SI {SENSOR 1)Troubleshooling, page 11 110
SECONDARY HEATED OXYGENSENSOR{SECONDARY HO2S) {SENSOR 2)Troubleshooting, page 1 1-1 17
'97 - 98 models:
AIR CLEANERReplacement, page 1 1'194
Troubleshooting, page 1 'l -200
THROTTLE BODY (TB)Inspection, page 11 196Removal, page 11-197Disassembly, page 1 1-'198
POWERTRAIN CONTROL MODULE(PCM) (A/TI
Troubleshooting Procedures, page 1 1-60Troubleshooting. page 1 1'82
THROTTLE CABLEInspection/Adjustment, page 1 1-1 94Installation, page 11- 195
VENTILATION (PCV) VALVEInspection, page 1 1-201FAST IDLEVALVE (A/T}
(cont'd)
1 1-5
PGM-FIMAIN RELAYRelay Testing, page 11-l87Troubleshooting. page 1'1 188
SERVICE CHECK CONNECTOR {2PITroubleshooting Procedures, page 1 1-60
,a'=_-_
WAY CATALYTIC
Inspection, page 1 1-168
www.emanualpro.com

FUEL PRESSUREREGULATORTesting, page 11-181Replacement, page 11 181
FUEL PUMPTesting, page 11 183Replacement, page 11 183FUEL GAUGE SENDING UNITTesting, page 11 185
'97 model:
'98 model:
FUEL PULSATION DAMPER
EVAPORATIVE EMISSIONIEVAP) CONTROL CANISTERTroubleshooting. page 1'l-205
FUEL FILTERReplacement, page 11 182
FUEL INJECTORSReplacement, page 1 1-179
FUEL FEED PIPEFUEL VAPOR PIPE
FUELFITTINGS
FUEL FILLCAP
EVAPORATIVE EMISSION
IEVAPI TWO WAY VALVETesting, page 11 224
TANKReplacement, page 11 191
-CONNECT
Precautions, page 1 1-175Disconnection, page 11 175Connection, page 1 1-176
FUEL FILTERReplacement, page 11 182
FUEL FEED PIPEFUEL VAPOR PIPE
FUEI- TANKReplacement,page 1l 191
FUEL TUBE/OUICK.CONNECTFITTINGSPrecautions, page 11 '175
Disconnection, page 11 175Connection, page 11 176
FUEL PUMPTesting, page 11 183Replacement, page 11 183FUEL GAUGE SENDING UNITTesting, page 1l'185
FUEL FILL CAP
FUEL TANK PRESSURESENSORTroubleshooting, page 1 l-209
FUEL PULSATION DAMPER
EVAPORATIVEEMTSSTONIEVAPICONTROLCANISTERVENTSHUT VALVETroubleshooting,page 11'213
EVAPORATIVE EMISSIONIEVAPI CONTROL CANISTERTroubieshooting, page 1 1 -213
FUEL RAIL
FUELFeplacement, page 1 1-179
FUEL PRESSURENEGULATORTesting, page 11-181Replacement, Page 11 181
EVAPORATIVE EMISSION{EVAP) EYPASSSOLENOID VALVETroubleshooting, page 1 1'213
€VAPORATIVE EMISSION{EVAP) TWO WAY VALVETesting, page 11 224(cont'd)
www.emanualpro.com

Gomponent Locations
Index lcont'd)
'99 - (X) modols:
FUEL TANKReplacement,page 11-191
FUEL FEED PIPE
FUEL FILTERReplacement, page 11 182
FUEL VAPOR PIPE
FUELFITTINGS
FUEL PUMPTesting, page '11 183Replacement, page 1 1_183FUEL GAUGE SENDING UNITTesting, page 11-185
FUEL FILL CAP
EVAPORATIVE EMISSIONIEVAP) CONTROLTroubleshooting, page 1 1-213
FUEL PULSATION DAMPER
FUEL RAIL
FUELReplacement, page 1 1-179
EVAPORATIVEEMtSStON
IEVAP)CONTROLCANISTERVENTSHUT VALVETroubleshooting,page 11-213FUEL TANK PRESSURESENSORTroubleshooting, page 1'l'208
EVAPORATIVE EMISSION{EVAP) TWO WAY VALVETesting, page 11-224
FUEL PRESSUREREGULATORTesting, page 11-181Replacement, page 11 181,CONNECT
PrecaLrtions, page 1 1-175Disconnection, page 1 1-175Connection, page 176
EVAPORATIVE EMISSION{EVAPI BYPASSSOLENOID VALVETroubleshooting, page 11 213
www.emanualpro.com

Troubleshooting
Troubleshooting Procedures
How To Begin Troubleshooting
When the Malfunction indicator Lamp (MlLl has been reported on, or there is a driveability problem, use the appropri-ate procedure below to diagnose and repair the problem.
A. When the MIL has come on:
1. Connect the Honda PGM Tester or an OBD Il scan tool to the 16P Data Link Connector (DLC) located behind theright side of the center console.
Turn the ignition switch ON (ll).
Check the DTC and note it. Also check and note
the freeze frame data.
Refer to the Diagnostic Trouble Code Chart and
begin troubleshooting.
NOTE:
. SeetheOBDll scan tool or Honda PGM Tester user's manuals for specific operating instructions.. The scan tool or tester can read the Diagnostic Trouble Codes (DTC), freeze frame data, current data, and otherEngine Control Module (ECM}/Powertrain Control Module (PCM) data.. Freeze frame data indicates the engine conditions when the first malfunction, misfire or fuel trim malfunction wasdetected. lt can be useful information when troubleshootino.
B. When the MIL has not come on, but there is a driveability problem, refer to the Symptom Chart on page 11-64.
C. DTCs will be indicated by the blinking of the Malfunction Indicator Lamp {MlL) with the SCS service connector con-nected.
Connect the SCS service connector to Service Check Connector as shown. {The 2P Service Check Connecror rslocated behind the right side of the center console.) Turn the ignition switch ON 0l).
DATA LINK CONNECTOR I16PI
1 1-60
www.emanualpro.com

ll. Engine Controt Module (EcM)/Powertrain Control Module {PCM) Reset Procedure
Either of the following actions will reset the ECM/PCM.
. use the oBD ll scan tool or Honda PGM Tester to clear the ECM's/PCM's memory. (see the oBD ll scan tool or
Honda PGM Tester user's manuals for specific operating instructions )
. Turn the ignition switch oFF. Remove the BACK UP (RADIO) (7.5 A) fuse from the under-hood fuse/relay box for 10
seconos.
lll. Final Procedure {this procedure must be done after any troubleshooting)
1. Remove the SCS Service Connector if it is connected. lf the SCS service connector is connected. and there are no
DTCS stored in the ECM/PCM, the MIL will stay on when the ignition switch is turnsd oN (ll).
2. Do the ECM/PCM Reset Procedure.
3. Turn the ignition switch OFF
4. Disconnect the OBD ll scan tool orHonda PGM Tester from the Data Link Connector ( 16P)'
(cont'd)
1 1-61
BACK UP {RADIOI I7,5 AI FUSE
FUSE/RELAY BOX
www.emanualpro.com

Troubleshooting
Troubleshooting Procedures (cont'd)
lf the inspection for a particular code requires voltage or resistance checks at the EcM/pcM connectors, remove the rightkick panel. Unbolt the EcM/PcM. and connect the backprobe sets and a digital multimeter as described below, check thesystem according to the procedure described for the appropriate code(s) listed on the following pages.
How to Us6 tho Backprobe S6ts
Backp.obo Adapto.
BACKPROBE SET
connect the backprobe adapters to the stacking patch cords. and connect the cords to a multimeter. Using the wire insula-tion as a guide for the contoured tip of the backprobe adapter, gently slide the tip into the connector from the wire sideuntil it comes in contact with the terminal end of the wire.
DIGITAI. MULTIMETER(Commarci.lly rvrilabl.l orKS-AHM-32-@3
@@)@)c,
11-62
o'SAZ - (xtlqDA lTwo requir.dl
www.emanualpro.com

Troubleshooting
Troubleshooting Procedures (cont'dl
Symptom Chart
Listed below are symptoms and probable causes for problems that DO NOT cause the Malfunction Indicator Lamp (MlL) tocome on. lf the MIL was reported on, go to page 11-60.Troubleshoot each probable cause in the order listed (from left to right) until the symptom is eliminated,The probable cause and troubleshooting page reference can be found below.
Other Probable Causes for an engine that will not start:- Compression- Intake air leakage- Engine locked up- Timing belt- Starting system- Overheating- Battery
SYMPTOMPROBABLE CAUSE
Engine will not sta rt4, 2,3,5,20, 't5, 1
Hard starting2, 4, 12,17, 14, 't9
Cold fast idle too low7, a,9, 6, 17
Cold fast idle too high7,8,9,11,10
ldle speed fluctuates9,7,8, 't1, 10
Misfire or rough runningTroubleshoot for misfire on pages '11-126, 1|21LOl/\/ power2, 10,11, 13, '17, 18,20
Engine stalls2, 4, 12,1,20,9,5, 't6
Probable Cause List (For the DTC Ch8rt, see page ll-75.)
Probable CausePageSystem
Engine controt ruoaute (ecvtffi'I11-42
I 1-178Fuel oressure
PGM-Fl main relav
lgnition system
Crankshatt Position/Top Dead Center/Cylinder position sensor circuit
Intake Air Temperature (lAT) sensor ctrculr
ldle Air Control (lAC) Vatve
Fast idle thermo valve
ldle speed adjustment
Throttle body
Throftle cable
Manifold Absolute P."""rr"ffi
Throftle Position (TP) sensor
Barometric pressur" (gnno-
Ay'T gear position signal
Brake switch signal
Air Cleaner
Three Way Catalytic Converter (TWC)
Evaporative emission (EVAP) control
Contaminated fuel
1 1- 187
Section 4
5't1-'t31,146
6I 't-95
711-152
81'l-168
1 1- 169
1011-196'1111-'194
12'1 'l -90
1 1- 103
1411-137
15Section 14
161 1- 166
17r 1-194
181 1,199'1911-203
20
11-64
www.emanualpro.com

Troubleshooting
Troubleshooting Procedures (cont'd)
DataDescliptionOperating ValueFreezo Data
HO2S
Feedback
Loop Status
Loop status is indicated as "open" or "closed".
Closed: Based on the HO2S output, the ECM/pCM deter-mines the airlfuel ratio and controls the amount ofinjected fuel.
Open: ignoring HO2S output, the ECM/pCiM refers to sig,nals from the TP, MAP, and ECT sensors to control theamount of injected fuel.
At idle speed: closed
YES
Short Term
Fuel Trim
The airlfuel ratio correction coefficient for correcting theamount of injected fuel when HO2S feedback is in theclosed loop status. When the signal from the HO2S isweak, short term fuel trim gets higher, and the ECM/PCMincreases the amount of injected fuel. The airlfuel ratiogradually gets richer, causing a higher HO2S output.Consequently. the short term fuel trim is lowered. andthe ECM/PCM reduces the amount of injected fuel.This cycle keeps the airfuel ratio close to the stoichio-metric ratio when in closed looD status.
t:20y"
YES
Long Term
Fuel Trim
Long term fuel trim is computed from shon term fueltrim and indicates changes occuring in the fuel supplysystem over a long period.
lf long term fuel trim is higher than 1,00. the amount ofinjected fuel must be increased. lf it is lower than L00.the amount of injected fuel must be reduced.
! 20%
Intake Air
Temperature
(IAT)
The IAT sensor converts intake air temperature into volt-age and signals the ECrU/PCM. When intake air tempera-ture is low, the internal resistance of the sensorincreases, and the voltage signal is higher.
With cold engine:
Same as ambient temper-
ature and ECTYES
Throttle
Position
Based on the accelerator pedal position, the openingangle of the throttle valve is indicateo.At idle speed:
approx. 10%
lgnition
Timing
lgnition timing is the ignition advance angle set by theECM/PCM. The ECM/PCM matches ignition timing to thedriving conditions.
At idle speed: 16'1 4.
BTDC with the SCS ser-
vtce connector connected.
NO
Calculated
Load Value(cLV)
CLV is the engine load calculated from the MAp data.At idle speed:
2A - 410/o
At 2,500 rpm with no load:
13 - 260/o
YES
_
1 1_66
www.emanualpro.com