Wireless Control Module (WCM)

DTC B2416: ECU internal error

DTC SET CONDITION

WCM sets DTC B2416 when it determines an abnormal status within itself.

TECHNICAL DESCRIPTION (COMMENT)

WCM determines that the abnormality is present, if the data abnormality is found when the ignition switch is turned ON and then EEPROM is written.

TROUBLESHOOTING HINTS

Malfunction of WCM

DIAGNOSIS

Recheck for diagnostic trouble code.

Check again if the DTC is set to the WCM.

(1)
CAUTION:
To prevent damage to scan tool (MB991958), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (MB991958).

Connect scan tool MB991958. Refer to "How to connect the Scan Tool (M.U.T.-III) Reading and Clearing Diagnostic Trouble Codes."

(2)Erase the DTC.

(3)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.

(4)Check if DTC is set.

(5)Turn the ignition switch to the "LOCK" (OFF) position.

Q. Is the DTC set?

YES Replace WCM and register the ID codes (Refer to ID Codes Registration Procedure).
NO The trouble can be an intermittent malfunction How to Cope With Intermittent Malfunctions).