MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION [L8, LF, L3]

Note

• Perform the following inspection only when directed.

• The following vacuum values are indicated by relative pressure from the MAP sensor.

1. Connect the SSTs (WDS or equivalent) to the DLC-2.

2. Turn the ignition switch to ON (Engine OFF).

3. Select MAP PID on the SSTs (WDS or equivalent).

4. Verify that the MAP PID (pressure) and the barometric pressure are practically equal.

• If not as verified, perform the "Circuit Open/Short Inspection".

- If there is no open or short circuit, replace the MAP sensor.

• If as verified, go to next step.

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [L8, LF, L3].)

2. Inspect the following wiring harness for open or short. (Continuity check)

Open circuit

• If there is no continuity, the circuit is open. Repair or replace the harness.

- MAP sensor terminal A and PCM terminal 2AY

- MAP sensor terminal D and PCM terminal 2AG

- MAP sensor terminal C and PCM terminal 2AU

Short circuit

• If there is continuity, the circuit is shorted. Repair or replace the harness.

- MAP sensor terminal C and power supply.

- MAP sensor terminal C and body GND.

- MAP sensor terminal D and power supply.

- MAP sensor terminal D and body GND