Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Clear DTC(s). Start engine. Increase engine speed to 2000 RPM momentarily. Return engine to idle and run for one minute. If DTC(s) reset, replace PCM and retest system. If DTC(s) do not reset, check for an intermittent problem. See TESTS W/O CODES article.
Home/Suzuki/X-90/Suzuki X-90 I (1995-2000)/Repair manual/Testing & Diagnostics/DTC P1450: BAROMETRIC PRESSURE SENSOR CIRCUIT MALFUNCTION OR
Contents
Wiring diagrams Section: Testing & Diagnostics- Engine Controls - Basic Testing: Diagnosis
- Engine Controls - Basic Testing: NVH
- Engine Controls - Basic Testing: Other
- Engine Controls - Tests W/codes: Diagnosis
- Engine Controls - Tests W/codes: Maintenance
- Engine Controls - Tests W/codes: Component Locations
- Engine Controls - Tests W/codes: Other
- DTC P0101: MASS AIRFLOW (MAF) CIRCUIT PERFORMANCE PROBLEM
- DTC P0102: MASS AIRFLOW (MAF) CIRCUIT LOW INPUT
- DTC P0103: MASS AIRFLOW (MAF) CIRCUIT HIGH INPUT
- DTC P0112: INTAKE AIR TEMP. (IAT) SENSOR CIRCUIT LOW INPUT
- DTC P0113: INTAKE AIR TEMP. (IAT) SENSOR CIRCUIT HIGH INPUT
- DTC P0117: ENGINE COOLANT TEMP. (ECT) SENSOR CKT LOW INPUT
- DTC P0118: ENGINE COOLANT TEMP. (ECT) SENSOR CKT HIGH INPUT
- DTC P0121: THROTTLE POSITION (TP) SENSOR SYSTEM PERFORMANCE
- DTC P0122: THROTTLE POSITION (TP) SENSOR CIRCUIT LOW INPUT
- DTC P0123: THROTTLE POSITION (TP) SENSOR CIRCUIT HIGH INPUT
- DTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP
- DTC P0131: HEATED O2 SENSOR (HO2S) NO. 1 CIRCUIT VOLTAGE LOW
- DTC P0132: HEATED O2 SENSOR (HO2S) NO. 1 CIRCUIT VOLTAGE HIGH
- DTC P0133: HEATED OXYGEN SENSOR (HO2S) NO. 1 SLOW RESPONSE
- DTC P0134: HEATED O2 SENSOR (HO2S) NO. 1 CKT ACTIVITY INSUFFICIENT
- DTC P0136: HEATED O2 SENSOR (HO2S) NO. 2 CKT MALFUNCTION
- DTC P0141: HEATED O2 SENSOR (HO2S) NO. 2 HEATER CKT MALFUNCTION
- DTC P0171: FUEL TRIM SYSTEM LEAN
- DTC P0172: FUEL TRIM SYSTEM RICH
- DTC P0300: RANDOM MISFIRE
- DTC P0301, P0302, P0303 OR P0304: CYLINDERS NO. 1-4 MISFIRE
- DTC P0335: CRANKSHAFT POSITION (CKP) SENSOR CKT MALFUNCTION
- DTC P0340: CAMSHAFT POSITION (CMP) SENSOR CKT MALFUNCTION
- DTC P0400: EXHAUST GAS RECIRCULATION (EGR) FLOW MALFUNCTION
- DTC P0420: THREE-WAY CATALYST (TWC) SYSTEM EFFICIENCY LOW
- DTC P0440: EVAPORATIVE (EVAP) CONTROL SYSTEM MALFUNCTION
- DTC P0443: EVAPORATIVE (EVAP) CONTROL SYSTEM PURGE FLOW INCORRECT
- DTC P0455: EVAPORATIVE (EVAP) CONTROL SYSTEM LEAK DETECTED
- DTC P0461: FUEL LEVEL SENSOR CIRCUIT PERFORMANCE
- DTC P0463: FUEL LEVEL SENSOR CIRCUIT VOLTAGE HIGH
- DTC P0500: VEHICLE SPEED SENSOR (VSS) MALFUNCTION
- DTC P0505: IDLE AIR CONTROL (IAC) SYSTEM MALFUNCTION
- DTC P0510: CLOSED THROTTLE POSITION (CTP) SWITCH MALFUNCTION
- DTC P0601: PCM MEMORY ERROR OR
- DTC P0603: KEEP ALIVE MEMORY ERROR
- DTC P1408: MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR CKT MALFUNCTION
- DTC P1410: FUEL TANK PRESSURE CONTROL SYSTEM MALFUNCTION
- DTC P1450: BAROMETRIC PRESSURE SENSOR CIRCUIT MALFUNCTION OR
- DTC P1451: BAROMETRIC PRESSURE SENSOR PERFORMANCE PROBLEM
- DTC P1500: ENGINE STARTER SIGNAL CIRCUIT MALFUNCTION
- DTC P1510: ECM BACKUP POWER SUPPLY MALFUNCTION
- DTC P1530: IGNITION TIMING ADJUSTMENT SWITCH CKT MALFUNCTION
- DTC P1715: PARK NEUTRAL POSITION (PNP) SWITCH CKT MALFUNCTION
- Engine Controls - System/component Tests: Specifications
- Engine Controls - System/component Tests: Diagnosis
- Engine Controls - System/component Tests: Other
- Abbreviations
- Adjustments
- Airbag
- Anti-Lock/traction Control
- Application
- Automatic Trans
- Axle Shafts
- Basic Trouble Shooting
- Brakes
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Computer Relearn
- Cooling Fan
- Cruise Control Systems
- Diagnostic Connector Locations
- Differentials & Drive Axles
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Performance
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Heated Glass/defoggers
- Heater
- Identification
- Locking Hubs
- Manual & Power Steering
- Manual HVAC System
- Manual Trans
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mirrors
- Mode 6
- Oem General Information
- Pin Voltage Charts
- Procedures
- Removal & Installation
- Restraints
- Sensor Range Charts
- Specifications
- Starter
- Steering
- Steering Column
- Steering Column Switches
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Theory & Operation
- Timing Belt
- Traction Control Disable
- Transfer Case
- Transmission
- Wheel Alignment
- Windows
- Wiper/washer Systems
- Wiring Diagrams - Engine Performance