Code No. P1A50: RAM Abnormal (BMU)


TROUBLE JUDGMENT
Check Condition
  • The electric motor switch is "ON" position or while the main battery is charged.
Judgement Criterion
  • The RAM cannot be read or written.

FAIL-SAFE AND BACKUP FUNCTION

  • Not available

PROBABLE CAUSE

  • The BMU is failed.

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III diagnosis code.

Q. Is the diagnosis code set?
Replace the BMU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).