Code No.B254E
Camera ECU output pictures fault
TROUBLE JUDGEMENT
When the camera-ECU detects an unfeasible image signal for 5 seconds, diagnosis code No.B254E
will be set.
PROBABLE CAUSES
- Malfunction of camera-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check the display audio <vehicles with display
audio> or multivision display <vehicles with MMCS> operation.
Check if the display audio <vehicles with display audio> or multivision
display <vehicles with MMCS> normally and the sound is output.
Q.
Is the check result normal?
Go to Step 2.
Troubleshoot the radio and CD player <vehicles with display audio> or
MMCS <vehicles with MMCS>.
STEP 2. Check of short to power supply, short to earth, and open circuit
in VOUT line between camera-ECU connector and display audio <vehicles with display
audio> or multivision display <vehicles with MMCS> connector.
Q.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
STEP 3. Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the camera-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
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(3)Check if diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the camera-ECU (Refer to 
).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).