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MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS TSB Revision MULTIPORT FUEL INJECTION (MFI) <2.4L ENGINE> 13A-711 DTC U0167: Immobilizer Communication Error CAUTION • If the ECM output the DTC U0167, make sure to diagnose the CAN bus line. • Before replacing the ECU, make sure that the communication circuit is operating normally. . DTC SET CONDITIONS Check Conditions • Ignition switch is in "ON" position. • Battery positive voltage is 8 volts or higher. Judgement Criterion • Unable to receive KOS-ECU/WCM (immobi- lizer-ECU) signals through the CAN bus line. . COMMENT Current Trouble • Some of the possible causes are a harness or connector damage between the ECM and the Past Trouble • Proceed to troubleshoot based on a harness or connector damage on the CAN bus line between − How to Treat Past Trouble NOTE: If a malfunction occurred in the past, a failure −
How to Cope with Intermittent Malfunctions . Furthermore, it is possible to narrow down the areas ). . TROUBLESHOOTING HINTS (The most • CAN line harness damage or connector damage. • KOS-ECU/WCM (immobilizer-ECU) 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 |