DTC No. P30FF-61 RMCU is staying protected because of RMCU

DTC SET CONDITION

Check Condition

The power supply mode of the electric motor switch is ON (READY indicator: ON).

Judgment Criterion

Authentication error (REMCU) is detected.

TROUBLESHOOTING HINTS

Inappropriate key registration operation
Malfunction of the keyless operation system
Malfunction of the engine control module (ECM)
Malfunction of the power drive unit
Malfunction of the rear motor (malfunction of the REMCU)

DIAGNOSIS

Required Special Tools:

MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
MB992745: V.C.I.-Lite main harness A
MB992747: V.C.I.-Lite USB cable short
MB992748: V.C.I.-Lite USB cable long

1.M.U.T.-IIISE other system DTC

Check whether the keyless operation system sets the following DTCs.

DTC No. B2033-4A DONGLE NG

Is the DTC set?

Troubleshoot the set DTCs (Refer to Diagnosis Procedure

2.Check whether the DTC is set again.

Is the DTC set?

The trouble can be an intermittent malfunction (Refer to General Information - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunctions HOW TO COPE WITH INTERMITTENT MALFUNCTIONS

3.M.U.T.-IIISE other system DTC

Check whether the other system sets the following DTCs.

Engine control module (ECM)

DTC No. P161F-61 Matching error in HECM

Power drive unit

DTC No. P3085-61 PDU is staying protected because of PDU

Is the DTC set?

When all the DTCs are set, replace the power drive unit, rear motor assembly and engine control module (ECM).

Replace the rear motor assembly (Refer to MOTOR (ELECTRIC MOTOR UNIT) REMOVAL AND INSTALLATION