| Inspection |
| 1. | Connect the GDS on the Data Link Connector (DLC). |
| 2. | Measure the output voltage of the MAPS at idle and IG ON.
|
| Removal |
| 1. | Turn ignition switch OFF and disconnect the negative (-) battery cable. |
| 2. | Remove the air cleaner assembly (Refer to Engine Mechanical System - "Air Cleaner") |
| 3. | Disconnect the manifold absolute pressure sensor connector (A). |
| 4. | Remove the installation bolt (B), and then remove the sensor from the surge tank.
|
| Installation |
|
|
| 1. | Install in the reverse order of removal.
|
Circuit Diagram
DescriptionMAFS uses a hot-film type sensing element to measure the mass of intake air entering the engine, and send the signal to ECM.A large amount of intake air represents acceleration or high load conditions while a small amount of intake air represents deceleration or idle.
Inspection1.Turn the ignition switch OFF.2.Disconnect the intake actuator connector.3.Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 4.Verify that the intake actuator operates to the recirculation position when connected in reverse.
System Block DiagramComponent Parts and Function Outline Component part Function Vehicle-speed sensor, ESP/ABS Control ModuleConverts vehicle speed to pulse.VCUReceives signals from sensor and control switches.