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⦆ Engine coolant temperature is between 0°C (32°F) ⦆ The engine coolant temperature - intake air ⦆ When the engine coolant temperature is 77°C (171° 1. Drive the vehicle at the engine speed of 1,438 2. The engine load is 31 percent or more. Judgement Criteria ⦆ The temperature difference between thermistor 1 OBD-II DRIVE CYCLE PATTERN Refer to Diagnostic Function - OBD-II Drive Cycle - TROUBLESHOOTING HINTS (THE MOST LIKELY ⦆ Tampering of the DOR radiator ⦆ ECM failed. 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. DOR radiator sensor installation check. ⦆ Check that the sensor is installed securely and operates Q:Is the check result normal? YES: Go to Step 2. NO: Replace the DOR radiator. Then go to Step 3. STEP 2. Replace the DOR radiator. ZC501967 AC404789 ZC501968 MB991824 MB991827 MB991910 Data link connector AA00 (1) Replace the DOR radiator. To prevent damage to scan tool MB991958, always turn (2) Connect scan tool MB991958 to the data link connector. (3) Turn the ignition switch to the "ON" position. (4) Read the DTC. (5) Turn the ignition switch to the "LOCK" (OFF) position. Q:Is DTC P1547 set? YES: Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP 42B, ID Code Registration NO: It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How to Use MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS> 13Ab-675 DIAGNOSTIC TROUBLE CODE PROCEDURES |