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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-583 STEP 14. Using scan tool MB991958, read the diagnostic CAUTION To prevent damage to scan tool MB991958, always turn the YES : Retry the troubleshooting. DTC P1231: Active Stability Control Plausibility . TECHNICAL DESCRIPTION • Checks for an abnormal signal of active stability control (ASC) via the CAN communication. . DTC SET CONDITIONS Check Condition • Ignition switch is "ON" position. Judgment Criterion • A torque demand signal from the active stability control is abnormal. . TROUBLESHOOTING HINTS (The most • Active stability control system failed. • 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 AK700568AB MB991824 MB991827 MB991910 Data link |