AIRFLOW METER Toyota Camry Solara I

AIRFLOW METER

Note. Airflow meter may also be referred to as Mass Airflow (MAF) meter.

Scheme 329

Scheme 330

1. Turn ignition off. Disconnect electrical connector at airflow meter. Airflow meter is bolted to top side of air intake hose, near upper cap on air cleaner assembly. Remove airflow meter and note airflow meter terminal identification. (Scheme 329)
2. Using ohmmeter, check resistance between terminals E2 and THA. Resistance should be within specification in relation to the temperature. See «AIRFLOW METER RESISTANCE»(/toyota/camry-solara/i-1998-2003/remont/testing-diagnostics/#engine-controls-system-component-testing-v6-v8) table. Replace airflow meter if resistance is not within specification.
3. To test airflow meter operation, ensure electrical connector is installed on airflow meter. Connect voltmeter leads to proper terminals on airflow meter with electrical connector installed. (Scheme 330)
4. Turn ignition on. Apply air into airflow meter and note voltage reading. (Scheme 330) While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage does not fluctuate. Remove voltmeter. Reinstall airflow meter.

Scheme 331

Scheme 332

1. Turn ignition off. Disconnect electrical connector at airflow meter. Airflow meter is bolted to side of air intake hose, near upper cap on air cleaner assembly. Remove airflow meter with gasket and note airflow meter terminal identification. (Scheme 331)
2. Using ohmmeter, check resistance between terminals E2 and THA. Resistance should be within specification in relation to the temperature. See «AIRFLOW METER RESISTANCE»(/toyota/camry-solara/i-1998-2003/remont/testing-diagnostics/#engine-controls-system-component-testing-v6-v8) table. Replace airflow meter if resistance is not within specification.
3. To test airflow meter operation, ensure electrical connector is installed on airflow meter. Connect voltmeter leads to proper terminals on airflow meter with electrical connector installed. (Scheme 332)
4. Turn ignition on. Apply air into airflow meter and note voltage reading. (Scheme 332) While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage does not fluctuate. Remove voltmeter. Reinstall airflow meter using NEW gasket.

Scheme 333

Scheme 334

1. Turn ignition off. Disconnect electrical connector at airflow meter. Airflow meter is bolted to top side of air intake hose, near upper cap on air cleaner assembly. Remove airflow meter and note airflow meter terminal identification. (Scheme 333)
2. Using ohmmeter, check resistance between terminals E2 and THA. Resistance should be within specification in relation to the temperature. See «AIRFLOW METER RESISTANCE»(/toyota/camry-solara/i-1998-2003/remont/testing-diagnostics/#engine-controls-system-component-testing-v6-v8) table. Replace airflow meter if resistance is not within specification.
3. To test airflow meter operation, ensure electrical connector is installed on airflow meter. Connect voltmeter leads to proper terminals on airflow meter with electrical connector installed. (Scheme 334)
4. Turn ignition on. Apply air into airflow meter and note voltage reading. (Scheme 334) While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage does not fluctuate. Remove voltmeter. Reinstall airflow meter.

Scheme 335

1. Turn ignition off. Disconnect electrical connector at airflow meter. Airflow meter is bolted to air intake hose, near air cleaner assembly. Remove airflow meter with "O" ring (if equipped) and note airflow meter terminal identification. (Scheme 329)
2. Using ohmmeter, check resistance between terminals E2 and THA. Resistance should be within specification in relation to the temperature. See «AIRFLOW METER RESISTANCE»(/toyota/camry-solara/i-1998-2003/remont/testing-diagnostics/#engine-controls-system-component-testing-v6-v8) table. Replace airflow meter if resistance is not within specification.
3. To test airflow meter operation, ensure electrical connector is installed on airflow meter. Connect voltmeter leads to proper terminals on airflow meter with electrical connector installed. (Scheme 335)
4. Turn ignition on. Apply air into airflow meter and note voltage reading. (Scheme 335) While air is being applied, voltage reading should fluctuate. Replace airflow meter if voltage does not fluctuate. Remove voltmeter. Reinstall airflow meter using "O" ring (if equipped).

AIRFLOW METER RESISTANCE

Scheme 336

1. Disconnect electrical connector at brakelight switch. Brakelight switch is located near top of the brake pedal. Note terminal identification on brakelight switch. (Scheme 336)
2. On models without cruise control, using ohmmeter, check that no continuity exists between terminals No. 1 and 2 with brake pedal released. Check that continuity exists between terminals No. 1 and 2 with brake pedal depressed. Adjust or replace brakelight switch if operation is not as described.
3. On models with cruise control, using ohmmeter, check that no continuity exists between terminals No. 1 and 2 with brake pedal released. Check that continuity exists between terminals No. 1 and 2 with brake pedal depressed.
4. Check that no continuity exists between terminals No. 3 and 4 with brake pedal depressed. Check that continuity exists between terminals No. 3 and 4 brake pedal released. Adjust or replace brakelight switch if operation is not as described.

Scheme 337

1. Disconnect electrical connector at brakelight switch. Brakelight switch is located near top of brake pedal. Note terminal identification on the brakelight switch. (Scheme 337)
2. Using ohmmeter, check that continuity exists between terminals No. 1 and 2 with brake pedal depressed. Check that no continuity exists between terminals No. 1 and 2 with brake pedal released.
3. Check that no continuity exists between terminals No. 3 and 4 with brake pedal depressed. Check that continuity exists between terminals No. 3 and 4 with brake pedal released. Adjust or replace brakelight switch if operation is not as described.