(b) Perform Inspection See: Powertrain Management/Computers and Control Systems/Air Flow Meter/Sensor/Testing and
Inspection/Inspection.
(c) Inspect the function of the mass air flow meter sub-assembly.
(1) Remove the mass air flow meter sub-assembly with the connector connected.
(2) Connect the Techstream to the DLC3.
(3) Turn the engine switch on (IG).
(4) Turn the Techstream on.
(5) Enter the following menus: Powertrain / Engine / Data List / MAF.
(6) Blow air to the mass air flow meter sub-assembly and check that the intake air amount reading changes.
OK:
The reading changes.
NG -- REPLACE MASS AIR FLOW METER SUB-ASSEMBLY See: Powertrain Management/Computers and Control
Systems/Air Flow Meter/Sensor/Service and Repair/Removal
OK -- REPLACE ECM See: Powertrain Management/Computers and Control Systems/Engine Control Module/Service and
Repair/Removal
5. CHECK HARNESS AND CONNECTOR (SENSOR GROUND)
(a) Disconnect the mass air flow meter sub-assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
Text in Illustration
(c) Reconnect the mass air flow meter sub-assembly connector.
NG -- CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
OK -- REPLACE MASS AIR FLOW METER SUB-ASSEMBLY See: Powertrain Management/Computers and Control
Systems/Air Flow Meter/Sensor/Service and Repair/Removal
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