honda cr v 19997 2000 User Manual
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Circuit Diagram UNDER OASHFUSEiRELAY BOX 6; E;;lwHTsLka rtF,*,El-l I RAOIATORFANSWITCHfClosed :Above)L 199oF {930C) J BLK/RED I L^,^,., T* IBLK I I oro, IGNITION SWITCH No.41{100A) N0.42140A) www.emanualpro.com

Fan Control Fan Motor Testing 1. Disconnect the 2P connector. Terminalside ofmale terminals Test the motor by connecting battery power to theNo. 2 terminal and ground to the No. 1 terminal. lf the motor fails to run or does not run smoothly,reptace rt. RADIATOR FAN MOTOR 10-14 Radiator Fan Switch Testing E@ Removing the radiator fan switch whilethe engine is hot can cause the coolant to spray out, seri-ously scalding you. Always let the enginc and radiatorcool down before removing the radiator fan switch. 1. Remove the radiator fan switch from the thermostathousing (see page 10 10). 2. Suspend the radiator fan switch in a container ofwater as shown. Heat the water, and check the temperature with athermometer. Do not let the thermometer touch thebottom of the hot container. Measure the continuity between the A and B termi-nals according to the table. Bleed the air from the cooling system after installingthe radiator fan switch (see page 10-5). Terminal op.*i- Trip.a* \.B SWITCH ON196 - 203F {91 - 95.C)o---o OFF 5 - 14F (3 - 8.C) lower than the tem-peratu re wh en itgoes on www.emanualpro.com

Goolant Temperature Gauge Gauge Testing 1. Check the No. 25 (7.5 A) fuse in the under-dash fuse/relay box before testin9. 2. Make sure the ignition switch is OFF, then discon- nect the YEL/GRN wire from the coolant tempera- ture sending unit. and ground it with a jumper wire. YEL/GRNWIRE Turn the ignition switch ON {ll). Check that the pointer of the coolant temperature gauge starts moving toward the H mark. Turn the ignition switch OFF before the pointer reaches H on the gauge dial. Failure to do so may damage the gauge. lf the pointer of the gauge does not move at all, check for an open in the YEL/GRN wire. lf the wires are OK, replace the coolant temperature gauge. lf the coolant temperature gauge works, test the coolant temperature sending unit. 5. COOLANT TEMPERATURE Coolant Temperature Sending Unit Testing 1. Disconnect the YEUGRN wire from the coolant tem perature sending unit. COOLANT TEMPERATURE POSITIVETERMINAL YEL/GRN WIRE(Covered withinsulation) 2. Using an ohmmeter, measure the change in resis- tance between the positive terminal and the engine (ground) with the engine cold and with the engine at operating temPerature. Temperature133.F (56C)1A5 - 212F (8s - 100c) Resistance(0)13746-30 3. lf the readings are substantially different from the specitications above, inspect the coolant level and the cooling system. lf the cooling system is OK, replace the sending unit. 10-15 www.emanualpro.com

Fuel and Emissions Special Tools ...................... 11-2 Component Locations lndex ...................... ....,.... 11-3 Svstem Description Vacuum Connections ...........,....,.,................. 1 1-9 Electrical Connections ................................... 1 1-15 System Connectors .,.,,.,............................,.,. 1 1-36 Troubleshooting Troubleshooting Procedures,.,..................... 11-60 Engine Control Module/Powertrain ConttolModule Terminal Arrangement .............., 11-67 Diagnostic Trouble Code Chart .................... 1 t-75 How to Read Flowcharts .......,.....,.,............... I 1-79 PGM-Fl System System Description .................,.,.,,,............... 1 1-80 Troubleshooting Flowcharts Engine Control Module/PowertrainControl Module ........11-52 Manifold Absolute Pressure Sensor ............. 11-90 Intake Air Temperature Sensor .................... 1 1-95 Engine Coolant Temperature Sensor .,..,.,.... 1 1-99 Throttle Position Sensor ...........,.....,.,.,..,...... I 1103 Primary Heated Orygen Sensor (Sensor 1) ... 11-110 Secondary Heated Oxygen Sensor{Sensor 2l .................. 1 1-117 Heated Oxygen Sensor Heater ..................... 11-121 Fuef Supply System ......11-124 Random Misfire ,....,.,..... 11-126 Mistire Detected in One Cylinder .....-........... 11-128 Knock Sensor ................ 11-130 CKP/TDC/CYP Sensor .................................... 1 1-131 Vehicle Speed Sensor ...............................,.... 1 1-135 Barometric Pressure Sensor .....,...,...,.,,........ 1 1-137 Electrical Load Detector ...,.,.......................... 1 1-138 CKF Sensor ................,.,, 11-112 ECM/PCM lnternaf Circuit ............................. 11117 HO2S Replacement .,.,.,. 11-148 ldle Control System System Description ............ 11-149 Troubleshooting Flowcharts ldle Control System ...... 11-150 fdle Air Control Valve ......................,............. 11-152 Air Conditioning Signal ................................. I 1-155 Alternator FR Signal ...................................... 1 1-159 Starter Switch Si9na1 .................................... t l-161 Power Steering Pressure Switch Signal ...... 11-162 Brake Switch Si9na1 ...................................... 11-166 Fast ldle Thermo Valve .,.,.............................,.,.,. 11-168 ldle speed setting .............. 11-169 Fuel Supply System Fuel Lines ............................ 11-171 Fuef Tube/Ouick-Conneci Fittings ..................... 11 -175 System Description ............ 11-178 Fuel Pressurg ...................... 11-178 Fuel Iniectors ................,..... 11-179 Fuel Pressure Re9u1ator .............................,.,...., f 1-181 Fuef Fifter ....,.,.,.,,,,.,............11-142 Fuel Pump ........................... 11-183 Fuel Gauge .......................... 11-184 Fuel Gauge Sending Unit ................................... I 1-185 Low Fuel Indicator System ...........,.,..,............... 1 1-185 PGM-FI Main Relay ............. 11-187 Fue|Tank................ ............. 11-191 Intake Air System System Description ............ 11-193 Air Cleanel ,.,.,..................... 11-194 Throttle Cable ..................... 11-194 Throttle Body........ .............. 11-196 Emission Control System System D$cription ...,....,.,. 11-199 Tailpipe Emission ............... 11-199 Three Way Catalytic Converter ..................,.,...,, 11-199 Positive Crankcase Ventilation System .,.,,,,.,.., 11-2O1 Evaporative Emission Controls .........,.,.,............ 11-203 www.emanualpro.com

Special Tools Ref. No. Tool NumberDescriptionOty Page Reference q t3 ,3)l 6rl A973X_041 _XXXXX 07JAZ 0010008 07PAZ , 0010100 07sAz - 001000A 07405 - 0040001 Vacuum Pump/Gauge,0 - 30 in.Hg Vacuum/Pressure Gauge, 0 4 in.Hg SCS Service Connector Backprobe Set Fuel Pressure Gauge 1 1 2 1 11-201 . 208,214, 215,2t6,217 ,220, 221 , 222, 223, 224 11 207 , 224 11-60, 83, 88, 1 16, 128,200,205 11-62 11-178, 181 Special Tools I 11-2 www.emanualpro.com

Component Locations lndex 97 - 98 models: MANIFOLD ABSOLUTEPRESSURE IMAP} SENSORTroubleshooting, Page 1 1-90 THROTTLE POSITION (TP} SENSORTroubleshooting, page 1 1-103 toLE AtR CONTROL llAcl VAI-VE Troubleshooting, page 1 1-152 EVAPORATIVE EMISSION (EVAP) CONTROL CANISTER VENT SHUTVALVE t98 mod€llTroubleshooting, page 11213 INTAKE AIR TEMPERATUREIIATI SENSORTroubleshooting. page 1 l -95 ELECTRICAL LOADDETECTOR IELD) (USA modol)Troubleshooting, page 1 1-138 VEHICLE SPEEDSENSOR (VSS) Troubleshooting,page 11135 CRANKSHAFTPOSTTtON/ POWER STEERING PRESSURElPsPl swtrcHTroubloshooting, page 1 1-162 TOP OEAD CENTER/CYLINDERPOStTtON{CKP/TDC/CYP} SENSOR(Built into the distributor)Troubleshooting, page 1 l-131 CMNKSHAFT SPEEDFLUCTUATION ICKF} SENSORTroubleshooting. page 1!-142 ENGINE COOLANTTEMPERATUREIECTI SENSORTroubleshooting, page 11 99 EVAPORATIVEI€VAP) PURGE CONTROLSOLENOID VALVETroubf eshooting, page 1 12o5, 213 (contd) 11-3 www.emanualpro.com

Component Locations Index (contdl 39 - 00 models: MANIFOLD ABSOLUTEPRESSURE IMAPISENSORTroubleshooting, page 1 1-90 THROTTLE POSITION {TP)SENSORTroubleshooting, page 1 1-103 IDLE AIR CONTROL OACI VALVETroubleshooting, page 1 1-152 EVAPOBATIVE EMISSION {EVAPICONTROL CANISTER VENT SHUTVALVETroubleshooting, page 1 1-213 EVAPORATIVE EMISSION(EVAPI PURGE CONTROI-SOLENOID VALVETroubleshootang, page 1 1-213 ELECTRICAL LOAOOETECTOR {ELD) IUSA modet)Troubleshooting, page I 1-138 INTAKE AIR TEMPERATURE(IAT) SENSORTroubleshooting, page 11 95 POWEB STEERING PRESSUREtPsPt swtTcHTroubleshooting, page 11 162VEHICLE SPEEDSENSOR IVSSITroubleshooting,page 11135 CRANKSHAFTPOSTTTON/TOP OEAD CENTER/CYLINDERPOStTtON{CKP/TDC/CYP) SENSOR(Built into the distributor)Troubleshooting, page 11 131 CRANKSHAFT SPEEDFLUCTUATION ICKN SENSORTroubleshooting, page 1 1-142 SENSORTroubleshooting, page 11 130 ENGINE COOLANTTEMPERATURE{ECT)SENSORTroubleshooting, page 11 99 11-4 www.emanualpro.com

DATA LINK CONNECTOR {DLC) I16P}Troubleshooting Procedures, page 1 160PRIMARY 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 1194 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 1 182 THROTTLE CABLEInspection/Adjustment, page 1 1-1 94Installation, page 11- 195 VENTILATION (PCV) VALVEInspection, page 1 1-201FAST IDLEVALVE (A/T} (contd) 1 1-5 PGM-FIMAIN RELAYRelay Testing, page 11-l87Troubleshooting. page 11 188 SERVICE CHECK CONNECTOR {2PITroubleshooting Procedures, page 1 1-60 ,a=_-_ WAY CATALYTIC Inspection, page 1 1-168 www.emanualpro.com

Component Locations Index {contd) 39 - q, models: THROTTLE BODY ITB)Inspection, page 1 1-196Removal, page 11- 197Disassembly, page 11 198THROTTLE CABLEInspectaon/Adjustment, page 1 1 194Installation, page I l195 AIR CLEANERR€placomenl, page 1 1-194 CRANKCASEVENTILATION IFCVI VALVElnspection, page 11 201 FAST IDLE THERMO VALVE IA/T)Inspection, page 11168 1 1-6 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 1l-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 1l185 FUEL FILL CAP FUEL TANK PRESSURESENSORTroubleshooting, page 1 l-209 FUEL PULSATION DAMPER EVAPORATIVEEMTSSTONIEVAPICONTROLCANISTERVENTSHUT VALVETroubleshooting,page 11213 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 1213 €VAPORATIVE EMISSION{EVAP) TWO WAY VALVETesting, page 11 224(contd) www.emanualpro.com