ENGINE CONTROLS - Sensor Operating Range Charts: Introduction: Notes

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

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.

ATMOSPHERIC PRESSURE SENSOR VOLTAGE ⁽¹⁾

Application

Volts

Forester, Impreza 2.5L & Legacy A/T

ECM Connector B136 Terminal No. 29 & Ground ⁽²⁾

Engine On

3.9-4.1

At Idle

2.0-2.3

⁽¹⁾	For further testing, see SELF-DIAGNOSTICS article.

⁽²⁾	Connect DVOM between indicated ECM terminal and ground.

CAMSHAFT & CRANKSHAFT POSITION SENSOR RESISTANCE

Application

⁽¹⁾ Ohms

All Models

1000-4000

⁽¹⁾	Check resistance between sensor terminals. For further testing, see SELF-DIAGNOSTICS article.