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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, read the diagnostic 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) Read the DTC. (4) Turn the ignition switch to the "LOCK" (OFF) position. Q:Is DTC P2066 set? YES: Go to Step 2. NO: Go to Step 4. STEP 2. Check fuel gauge. Q:Is the fuel gauge functioning? YES: Go to Step 3. NO: Refer to GROUP 54A, Chassis Electrical - Combination Meters Assembly - Symptom Chart P.13Ab-8. STEP 3. Check the trouble symptoms. Check that the fuel gauge operates correctly. Q:Does the fuel gauge operate correctly? YES: It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use NO: Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, ID Code Registration MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS> 13Ab-543 DIAGNOSTIC TROUBLE CODE PROCEDURES |