Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSNISSAN-DATSUN2004ALTIMA S, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSELECTRICAL COMPONENT LOCATIONSELECTRICAL COMPONENT LOCATORSENDING UNITS & SENSORS
2004 Nissan-Datsun Altima S, Automatic
Sending Units & Sensors
2004 Nissan-Datsun Altima S, AutomaticSECTION Sending Units & Sensors
SENDING UNITS & SENSORS LOCATION
| Component | Location |
|---|---|
| Accelerator Pedal Position Sensor | Above accelerator pedal. See Figure . |
| Air Bag Diagnosis Sensor Unit | Below center console, between seats. See Figure . |
| Air Fuel Ratio (A/F) Sensor (2.5L) (F22) | At left front of engine compartment. See Figure . |
| Ambient Sensor (E1) | Behind lower left side of front grille. See Figure . |
| Auto Light Sensor (M15) | On upper left side of dash. See Figure . |
| Camshaft Position Sensor (PHASE) (Bank 1) (3.5L) (F48) | On rear of right cylinder head. See Figure . |
| Camshaft Position Sensor (PHASE) (Bank 2) (3.5L) (F23) | On rear of left cylinder head. See Figure . |
| Camshaft Position Sensor (PHASE) (2.5L) (F9) | On rear of cylinder head. See Figure . |
| Crankshaft Position Sensor (2.5L) (F11) | On right rear of cylinder block, below starter motor. See Figure . |
| Crankshaft Position Sensor (3.5L) (F11) | On lower left rear of cylinder block. See Figure . |
| Crash Zone Sensor (E4) | Behind front center of grille, near hood latch. See Figure . |
| Engine Coolant Temperature Sensor (2.5L) (F24) | On left rear of engine, on coolant outlet. See Figure . |
| Engine Coolant Temperature Sensor (3.5L) (F24) | On upper rear of engine. See Figure . |
| EVAP Control System Pressure Sensor (B119) | Below center rear of vehicle, near EVAP canister. See Figure . |
| Front Wheel Sensor Left (E18) | At left front wheel hub assembly. See Figure . |
| Front Wheel Sensor Right (E117) | At right front wheel hub assembly. See Figure . |
| Fuel Level Sensor Unit & Fuel Pump (B16) | In fuel tank. See Figure . |
| Heated Oxygen Sensor 1 (Front) (Bank 1) (3.5L) (F45) | On right side of engine, on exhaust manifold. See Figure . |
| Heated Oxygen Sensor 1 (Front) (Bank 2) (3.5L) (F5) | On left side of engine, on exhaust manifold. See Figure . |
| Heated Oxygen Sensor 2 (Rear) (Bank 1) (3.5L) (F13) | On right exhaust downpipe. See Figure . |
| Heated Oxygen Sensor 2 (Rear) (Bank 2) (3.5L) (F12) | On left exhaust downpipe. See Figure . |
| Heated Oxygen Sensor 2 (Rear) (2.5L) (F23) | On exhaust downpipe. See Figure . |
| Intake Sensor (M53) | Behind right side of dash, on HVAC assembly. See Figure . |
| In-Vehicle Sensor (M32) | On left center of dash, near ignition switch. See Figure . |
| Knock Sensor (2.5L) (F18) | On lower right side of cylinder block. See Figure . |
| Knock Sensor (3.5L) (F302) | On engine block, below intake manifold. See Figure . |
| Mass Airflow Sensor (2.5L) (F31) | On left side of engine compartment, attached to air box. See Figure . |
| Mass Airflow Sensor (3.5L) (F31) | On left side of engine compartment, attached to air box. See Figure . |
| Power Steering Oil Pressure Sensor (2.5L) (F20) | On power steering pump. See Figure . |
| Power Steering Oil Pressure Sensor (3.5L) (F46) | On power steering pump. See Figure . |
| Rear Wheel Sensor (Left) (B122) | On left rear wheel hub assembly. See Figure . |
| Rear Wheel Sensor (Right) (B123) | On right rear wheel hub assembly. See Figure . |
| Refrigerant Pressure Sensor (E111) | On right front of engine compartment, near radiator filler neck. See Figure . |
| Revolution Sensor (A/T) (2.5L) (F38) | On right rear of transaxle. See Figure . |
| Revolution Sensor (A/T) (3.5L) (F38) | On right rear of transaxle. See Figure . |
| Side Air Bag (Satellite) Sensor (Left) (B15) | Under left front seat. See Figure . |
| Side Air Bag (Satellite) Sensor (Right) (B114) | Under right front seat. See Figure . |
| Sunload Sensor (M65) | On upper right side of dash, near base of windshield. See Figure . |
| Turbine Revolution Sensor (A/T) (2.5L) (F37) | On right rear of transaxle. See Figure . |
| Turbine Revolution Sensor (A/T) (3.5L) (F37) | On right rear of transaxle. See Figure . |
| Vehicle Speed Sensor (2.5L) (F36) | On right front of transaxle, near right axle flange. See Figure . |
| Vehicle Speed Sensor (3.5L) (F36) | On right front of transaxle, near right axle flange. See Figure . |
| Washer Fluid Level Sensor (E106) | On washer fluid reservoir. See Figure . |
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.