Pressure (MDP) Sensor

WARNING: This page is about a different car, the 1996 Suzuki Swift. However, it is still accessible from the selected car via links, so may be relevant.

To test MAP sensor on vehicle, turn ignition on. Connect scan tool to Data Link Connector (DLC). Connect a hand-held vacuum pump to MAP sensor. Observe scan tool display as specified vacuum is applied. See MAP SENSOR OUTPUT SIGNAL (ON-VEHICLE) table.
If scan tool reading is not within specification, see DTC P0106, P0107 and P0108 in appropriate BASIC TESTING article. Since many computer-controlled and monitored components set a Diagnostic Trouble Code (DTC) if they malfunction, also perform procedures in appropriate TESTS W/CODES article. To bench test pressure sensor, see appropriate MAP SENSOR OUTPUT VOLTAGE (OFF-VEHICLE) table. If voltage is not within specification, replace MAP sensor.

CAUTION: Damage to MAP sensor will occur if connections are made incorrectly.

NOTE: On-vehicle testing of MAP sensor is available from manufacturer for Swift only.

MAP SENSOR OUTPUT SIGNAL (ON-VEHICLE) ⁽¹⁾

Vacuum (In. Hg)

Scan Tool Display (kPa)

100

⁽¹⁾	With scan tool installed, ignition on, and specified vacuum applied to MAP sensor.

MAP SENSOR OUTPUT VOLTAGE (OFF-VEHICLE)

Altitude (Feet)

Vacuum (In. Hg)

⁽¹⁾⁽²⁾ Output Voltage

0-2000

28-30

3.1-3.6

2001-5000

25-28

2.8-3.4

5001-8000

22-25

2.6-3.1

8001-10,000

20-22

2.4-2.9

⁽¹⁾	MAP sensor output voltage is tested with three 1.5-volt batteries connected in series (output 4.5-5.0 volts). Positive lead of batteries is connected to "Vin" terminal. Negative lead of batteries is connected to "Ground" terminal. Check output voltage between "Vout" and "Ground" terminals.

⁽²⁾	Voltage should reduce when up to 15 in. Hg of vacuum is applied to MAP sensor.