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MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS) CHASSIS ELECTRICAL 54A-406 DIAGNOSIS PROCEDURE STEP 1. Confirmation in MMCS service mode • Perform "Network/Connect Line Check" in the MMCS service mode to check that the communi- • Perform "Vehicle Signal Check", and then check the status of the vehicle speed signal. • Perform "Sensor Check", and then check the status of the vehicle speed sensor and the gyro Q: Is the check result normal? YES (OK for all) : Go to Step 6. NO <GPS is not OK> : Go to Step 2. NO <The vehicle speed sensor is not OK, or vehicle Go to Step 3. NO <Gyro sensor is not OK> : Go to Step 6. STEP 2. GPS reception check (2) Press the (1). (3) Select (2). (4) Wait for 5 minutes, and then check whether GPS signal can be received. Q: Is the check result normal? YES : Go to Step 6. NO : Perform Inspection Procedure 7 "GPS STEP 3. Check the speedometer. Q: Does the speedometer work normally? YES : Go to Step 4. NO : Diagnose the combination meter (Refer to − Troubleshooting ). AC804201 (1) AB AC803907 AB (2) AC803908 |