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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)
cautionTo 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) ."
(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.
Is the DTC set?
Replace WCM and register the ID codes (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).