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DIAGNOSIS Required Special Tools: ⦆ MB991958: Scan Tool (M.U.T.-III Sub Assembly) ⦆ MB991824: V.C.I. ⦆ MB991827: USB Cable ⦆ MB991910: Main Harness A STEP 1. Using scan tool MB991958, check data list item 8: ZC501967 AC404789 ZC5019680000 MB991824 MB991827 MB991910 Data link connector To prevent damage to scan tool MB991958, always turn the (1) Connect scan tool MB991958 to the data link connector. (2) Turn the ignition switch to the "ON" position. (3) Set scan tool MB991958 to the data reading mode for item ⦆ When altitude is 0 m (0 foot), 101 kPa (29.8 in.Hg). ⦆ When altitude is 600 m (1,969 feet), 95 kPa (28.1 in.Hg). ⦆ When altitude is 1,200 m (3,937 feet), 88 kPa (26.0 in.Hg). ⦆ When altitude is 1,800 m (5,906 feet), 81 kPa (23.9 in.Hg). (4) Start the engine. ⦆ When the engine is idling, 16 - 36 kPa (4.7 - 10.6 in.Hg). ⦆ When the engine is suddenly revved, manifold absolute (5) Turn the ignition switch to the "LOCK" (OFF) position. Q:Is the sensor operating properly? YES: It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use NO: Go to Step 2. STEP 2. Check harness connector B-105 at the manifold Q:Is the harness connector in good condition? YES: Go to Step 3. NO: Repair it. Refer to GROUP 00E, Harness Connector Inspection P.00E-2. Then go to Step 7. STEP 3. Measure the sensor supply voltage at manifold (1) Disconnect the connector B-105. (2) Turn the ignition switch to the "ON" position. MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS> 13Ab-135 DIAGNOSTIC TROUBLE CODE PROCEDURES |