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4. READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS) (a) Disconnect the D7 MAF meter connector. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Powertrain / Engine and ECT / All Data / Intake Air. (f) Read the value displayed on the Techstream. Standard value: -40°C (-40°F) NG GO TO STEP 5 OK REPLACE MASS AIR FLOW METER 5. CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM) (a) Disconnect the D7 MAF meter connector. (b) Disconnect the D74 ECM connector. (c) Measure the resistance according to the value(s) in the table below. Standard resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION D7-4 (THA) or D74-73 (THA) - Body ground Always 10 kΩ or higher NG REPAIR OR REPLACE HARNESS OR CONNECTOR OK REPLACE ECM 3UR-FBE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0112,P0113... |