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Home >> Nissan-Datsun >> 1998 >> Sentra GLE, Automatic >> Repair and Diagnosis >> Engine Performance >> Sensor Range Charts >> Engine Controls - Sensor Operating Range Charts >> Sensor Range Charts
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Sensor Range Charts

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a diagnostic trouble code, but it may cause driveability problems.

NOTE: Perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. To identify ECM terminals, see appropriate wiring diagram in WIRING DIAGRAMS article.
CAMSHAFT POSITION SENSOR RESISTANCE @ 68°F (20°C)

Application Ohms
Maxima
Hitachi Sensor 1440-1760
Mitsubishi Sensor 2090-2550
CAMSHAFT POSITION SENSOR VOLTAGE TEST

Terminal No. Voltage (1) At Idle Voltage (1) At 2000 RPM
Altima
3 (2) 2.5 2.3-2.5
4 (2) 0.1-0.5 0.2-0.4
Frontier
44 or 48 (3) 0.2-0.5 0.0-0.5
49 (3) 2.6 2.5-2.6
Maxima
46 or 47 (3) 4.2 N/A
Pathfinder & QX4
44 or 48 (3) 0.3-0.5 0.3-0.5
49 (3) 2.5 2.5
Quest
40 or 44 (3) 0.2-0.5 0.2-0.4
41 (3) 2.0-3.0 2.3-2.6
Sentra & 200SX (1.6L)
40 (3) 0.1-0.4 0.1-0.4
41 (3) 2.5 2.4
Sentra & 200SX (2.0L)
44 or 48 (3) 0.3-0.5 0.3-0.5
49 (3) 2.5 2.5
240SX
40 or 44 (3) 2.5 2.3-2.5
41 (3) 0.1-0.5 0.2-0.4
(1) Voltage measurement is approximate.
(2) Measure between ground and specified component connector terminal with engine at normal operating temperature and specified speed.
(3) Measure between ground and specified ECM connector terminal with engine at normal operating temperature and specified speed.
CRANKSHAFT POSITION SENSOR RESISTANCE @ 77°F (25°C)

Application Ohms
Altima & Quest 432-528
Frontier, Pathfinder, QX4 & 240SX (1) 166.5-203.5
Maxima 470-570
Sentra & 200SX
1.6L Engine (With A/T) 166.5-203.5
1.6L Engine (With M/T) 432-528
2.0L Engine 166-204
(1) Sensor resistance is measured at 68°F (20°C).
EGR TEMPERATURE SENSOR VALUES (1)

Temperature - °F (°C) Volts Ohms
Altima
32 (0) 4.61 680,000-1,110,000
122 (50) 2.53 90,000-120,000
212 (100) 0.87 17,000-24,000
Quest
32 (0) 4.81 7,500,000-9,200,000
122 (50) 2.82 570,000-700,000
212 (100) 0.80 80,000-100,000
Except Altima & Quest
32 (0) 4.81 7,900,000-9,700,000
122 (50) 2.81 570,000-700,000
212 (100) 0.80 80,000-100,000
(1) Carefully suspend sensor in engine oil without immersing terminals. Slowly heat sensor and measure resistance across sensor terminals.
ENGINE COOLANT TEMPERATURE SENSOR RESISTANCE

Temperature - °F (°C) Ohms
68 (20) 2100-2900
122 (50) 680-1000
176 (80) 300-330
194 (90) 236-260
FUEL TANK FUEL TEMPERATURE SENSOR RESISTANCE (1)

Temperature - °F (°C) Ohms
68 (20) 2300-2700
122 (50) 790-900
(1) Carefully suspend sensor in water without immersing terminals. Slowly heat sensor using water or a heat gun, and measure resistance across sensor terminals.
HO2S HEATER RESISTANCE @ 77°F (25°C)

Application Ohms
Front HO2S (1) 2.3-4.3
Rear HO2S (2) 2.3-4.3
(1) Measure resistance between HO2S terminals No. 1 and 3. Continuity should not exist between center terminal and outer terminals.
(2) Measure resistance between HO2S terminals No. 2 and 3.
HO2S OPERATING RANGE VOLTAGE (1)

Application Lean Volts Rich Volts
Front HO2S 0.0-0.3 0.6-1.0
Rear HO2S 0.0-0.3 0.6-1.0
(1) Maintain engine speed at 2000 RPM.
INTAKE AIR TEMPERATURE SENSOR RESISTANCE

Temperature - °F (°C) Ohms
Pathfinder, QX4, Sentra, 200SX & 240SX
68 (20) 2100-2900
176 (80) 270-380
Except Pathfinder, QX4, Sentra, 200SX & 240SX
68 (20) 2100-2900
122 (50) 680-1000
176 (80) 300-330
194 (90) 236-260
KNOCK SENSOR RESISTANCE (1)

Temperature - °F (°C) Ohms
70 (25) 500,000-620,000
(1) Measured between knock sensor terminal No. 1 (terminal No. 2 on Maxima) and ground.
MASS AIRFLOW SENSOR VOLTAGE TEST (1)

Application Volts (2) At Idle Volts (2) At 2500 RPM
Altima 1.2-1.5 1.9-2.3
Frontier 0.9-1.8 1.9-2.3
Maxima 1.0-1.7 1.5-2.1
Pathfinder & QX4 1.0-1.7 1.7-2.3
Quest 1.0-1.7 1.9-2.3
Sentra & 200SX
1.6L 1.0-1.7 1.7-2.1
2.0L 1.3-1.7 1.8-2.4
240SX 1.3-1.7 1.7-2.1
(1) Values are approximate and vary with engine RPM. Voltage should be less than one volt with Key On, Engine Off (KOEO).
(2) With engine at normal operating temperature, specified speed and no load.
POWER STEERING OIL PRESSURE SWITCH

Condition Continuity
Steering Unloaded (Not Turning Steering Wheel) OFF
Steering Loaded (Turning Steering Wheel) ON
THROTTLE POSITION (TP) SENSOR RESISTANCE @ 77°F (25°C)

Sensor Position Ohms
Sentra & 200SX
Fully Open 0.6
Partly Open 0.6-4.0
Fully Closed 4.0
Except Sentra & 200SX
Fully Open 0.5
Partly Open 0.5-4.0
Fully Closed 4.0
THROTTLE POSITION (TP) SENSOR VOLTAGE (4-CYLINDER) (1)

Application Voltage
Altima, Frontier, Pathfinder, QX4 & 240SX
Throttle Fully Closed 0.30-0.70
Throttle Fully Open About 4.0
Sentra & 200SX
Throttle Fully Closed 0.35-0.65
Throttle Fully Open About 4.0
(1) Voltage is measured at wiring harness side with TP sensor connected and with ignition ON and engine off.
THROTTLE POSITION (TP) SENSOR VOLTAGE (V6) (1)

Application Voltage
Maxima
Throttle Fully Closed 0.35-0.65
Throttle Fully Open About 4.0
Pathfinder, QX4 & Quest
Throttle Fully Closed 0.30-0.70
Throttle Fully Open About 4.0
(1) Voltage is measured at wiring harness side with TP sensor connected, with ignition on and engine off.
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