P0563

DTC P0563: Power Supply System

CAUTION:

- If there is any problem in the CAN bus lines, an incorrect diagnostic trouble code may be set. Prior to this diagnosis, diagnose the CAN bus lines.
- Whenever the ECU is replaced, ensure that the CAN bus lines are normal.

OPERATION

The shift lever-ECU checks that the power supply circuit is normal.

DTC SET CONDITIONS

The voltage from the battery is determined to be overvoltage.

PROBABLE CAUSES

- Malfunction of the shift lever-ECU
- Generator malfunction

DIAGNOSTIC PROCEDURE

STEP 1. Scan tool CAN bus diagnostics

Using scan tool MB991958, diagnose the CAN bus lines.

Q. Is the check result normal?

YES Go to Step 3.
NO Repair the CAN bus lines. CAN Bus Diagnostics Chart.) After repairing the CAN bus line, go to Step 2.
STEP 2. Check whether the DTC is reset.

Q. Is DTC No. P0563 set?

YES Go to Step 3.
NO This diagnosis is complete.
STEP 3. Generator system check

Generator Output Line Voltage Drop Test.

Q. Is the check result normal?

YES Go to Step 4.
NO Repair or replace the generator related parts.
STEP 4. Check whether the DTC is reset.

Q. Is DTC No. P0563 set?

YES Shift lever assembly replacement. (Refer to Service and Repair.)
NO Intermittent malfunction. How to Cope With Intermittent Malfunctions.)