sm7a3, 2249 Po024 {ALL Diagnostic Teuble Codes ( DTC ))~ ALLDATA Repair 2005 Camién Nissan-Datsun Xterra 4WD V6-4.0L (VO40) Vehiculo > TODOS los eédigos de diagnéstico de fallas (DTC) > Prueba e inspeccién > Tablas de cédigos P P0021 DTC P0021 CONTROL IVT Descripcién Description — SYSTEM DESCRIPTION Serer Tapa oral ECM our Tar SemisieR postion reer (POS) __| engine soeed end piston postion ‘amaha oat sneer (PRASE) tne rave | ake vane tring coe! Engr coolant rps sencor Engine coon trparate inngcente | slenod ate Tne sig ero re ET Bou CAN commUnEON ne Ty moet” gana r ont | DESCRIPCION DEL SISTEMA. Este mecanismo controla hidraulicamente las fases de la leva de forma continua con el angulo de funcionamiento fijo de la valvula de admisién. EI ECM recibe sefiales como la posicién del cigiiefial, la posicién del arbol de levas, la velocidad del motor y la temperatura del refrigerante del motor. Luego, el ECM enwvia sefiales de trabajo de pulsos de ENCENDIDO/APAGADO a la valvula solenoide de control de sincronizacién de la valvula de admisién segun el estado de conduccién. Esto hace posible controlar el tiempo de cierre/apertura de la valvula de admisién para aumentar el par motor en el rango de velocidad baja/media y la salida en el rango de alta velocidad hitpsimyaldata.comrepairtirepaiiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse wri773, 2249 P002' (ALL Diagnostic Trouble Codes ( DTG ))- ALLDATA Repair CONSULT-II Reference Value in Data Monitor Mode assay Aviat ts hanna ah seaman [Suter MPT Need Sor | ee emcrr [zane seo 20% arwecuen | semrPom am eee ‘Air conditioner switch: OFF ae erie. Valor de referencia de CONSULT-II en modo de monitor de datos On Board Diagnosis Logic a Dien | ne arene Demag onion Fone coe oF aaa pwn sor POT om amaatpston ara P886) vias vane sng | mawnssantamnan args ctugtind |” iocmisiet soi sonloenen occ | Cociootrnete | pewenselenge anes feheneibecaneh or “meg cain enon Légica de diagnéstico a bordo FAIL-SAFE MODE \When the malfunction is detected, the ECM enters fli FAIL-SAFE MODE DTC Confirmation Procedure CAUTION: Always drive at a safe speed NOTE: + If DTC PO0T1 or P0021 is displayed with DTC P1111 or P1136, first perform trouble diagnosis for DTC P1111 or P1136. See: AL L Diagnostic Trouble Codes (DTC) > P Code Charts > P1111 - If DTC Confirmation Procedure has been previously conducted, always tum ignition switch OFF and wait at least 10 seconds before conducting the next test. TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is between 10 V and 16 V at idle, hitpsimyaldata.comirepaictirepaitiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse ai773, 22.49 P002' (ALL Diagnostic Trouble Codes ( DTG ))- ALLDATA Repair WITH CONSULT-II DATA MONITOR MONITOR No DTC ENG SPEED XXX rpm B/FUEL SCHDL XXX msec COOLANTENPIS —XXX'C VHCL SPEED SE XXX kmin INTIVTIM (81) XXX°CA INTVTIM (B2)XXX"CA INTIV SOL (B1) XXX % INTIV SOL (B2) XXX % 1. Tum ignition switch ON and select "DATA MONITOR” mode with CONSULFI 2, Start engine and warm it up to the normal operating temperature. ENG SPEED 1,200 - 2,000 rpm COOLAN TEMP/S 60 - 120*C (140 - 248+F) B/FUEL SCHDL More than 3.5 msec P of N position (A/T) Selector lever Neutral position (M/T) 3. Maintain the given conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady as possible. 4, Stop vehicle with engine running and let engine idle for 10 seconds 5. If the Ist trip DTC is detected, go to "Diagnostic Procedure” below. If the 1st trip DTC is not detected, go to next step. hitpsimyaldata.comirepaictirepaitiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse a7i773, 22.49 P002' (ALL Diagnostic Trouble Codes ( DTG ))- ALLDATA Repair ENG SPEED 7,700 - 3.175 rpm (A constant rotation js maintained) ‘COOLAN TEMPIS 70- 105-6 (158 - 221-F) Selector lever [Astor 2nd position Driving vehicle uphill Driving location uphill___| (Increased engine load wil help maintain the driving conditions required for this test ) 6. Maintain the given conditions for at least 20 consecutive seconds. 7. If the 1st trip DTC is detected, go to “Diagnostic Procedure” below. WITH GST Follow the procedure "WITH CONSULT" above. Diagnostic Procedure (Steps 1 - 5) hitpsimyaldata.comirepaictirepaitiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse ani773, 2249 P002' (ALL Diagnostic Trouble Codes ( DTG ))- ALLDATA Repair Diagnostic Procedure sn 1. CHECK OIL PRESSURE WARNING LAMP 1 Siege 2 Chet presse wari an an conte 0 Bn ace oxen ey (OK >>GOTO2 N 7 KG > Go. LUL7. "ou pRESSURE cHECK’ oy, 2. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OK © >>GOTOS, NG 3> Replace intake valve timing contol solenoid valve. 3. CHECK CRANKSHAFT POSITION SENSOR (POS) Refer to “Component inspection” OK or NG (OK >>GOTO4, NG >> Replace crankshaft poston sensor (POS). 4. CHECK CAMSHAFT POSITION SENSOR (PHASE) Refer to "Component inspection” OK oF NG OK © >>GOTOS, NG >> Replace camshaft poston sensor (PHASE). 5. CHECK CAMSHAFT (INTAKE) ‘Check he following, ‘Accumulation af debris othe signal plate of camshaft rear end - Chipping signal plate of camshaft rear end. Ok oFtNG Z (OK © >>GOTOS, NG >> Remove debris and clean the signal plate of camshaft lan Ce, =) Diagnostic Procedure (Steps 6 8) hitpsimyaldata.comirepaictirepaitiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse 57i773, 2249 P002' (ALL Diagnostic Trouble Codes ( DTG ))- ALLDATA Repair 6. CHECK TIMING CHAIN INSTALLATION Check service records for any recent repairs that may cause timing chain misaligned. OK or NG OK >> Check timing chain installation. Refer to "TIMING CHAIN" . NG >>GOTO7 7. CHECK LUBRICATION CIRCUIT Refer to “INSPECTION AFTER REMOVAL" OK or NG OK >>GOTOB. NG >> Clean lubrication line, 8. CHECK INTERMITTENT INCIDENT Refer to "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" . For Wiring Diagram, refer CKP sensor (POS) and CMP sensor (PHASE). >> INSPECTION END. iagnostic Procedure Component Inspection INTAKE VALVE TIMING CONTROL SOLENOID VALVE 1. Disconnect intake valve timing control solenoid valve harness connector. rH terzedgeund (Continuity shoul rat exist) [a] [a] 2. Check resistance between intake valve timing control solenoid valve as given. IFNG, replace intake valve timing control solenoid valve. If OK, go to next step. 3, Remove intake valve timing control solenoid valve. hitpsimyaldata.comirepaictirepaitiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse eri773, 2249 P002' (ALL Diagnostic Trouble Codes ( DTC ))- ALLDATA Repair PRR2Z7SE 4, Proporcione 12 V CC entre los terminales de la valvula solenoide de control de sincronizacién de la valvula de admisién y luego interrumpa. Asegtirese de que el émbolo se mueva como se muestra en la figura. PRECAUCION: No aplique 12 V CC continuamente durante 5 segundos o mas, Si lo hace, puede dafiar la bobina en la valvula solenoide de control de sincronizacién de la valvula de admisién, Si es incorrecto, reemplace la valvula solenoide de control de sincronizacién de la valvula de admisién, NOTA: Siempre reemplace la junta t6rica cuando se quite la valvula solenoide de control de sincronizacién de la valvula de admisién hitpsimyaldata.comirepaictirepaitiartcle/39972/companent3926 type!423inonstandard731131isetRefinktalse W