DTC P0800[A3] Battery Voltage High Supply (4WD models)

1. DTC P0800[A3] description

The TCCM monitors the system voltage. If the TCCM detects that the battery voltage is 18 V or more, this DTC is set.

2. Condition for setting DTC P0800[A3]

Condition for running the DTC

  • The CAN1 is normal.
  • The engine speed status is normal.

Condition for setting the DTC

  • The TCCM detects that the battery voltage is more than 18 V for 10 seconds.

3. Action taken when DTC P0800[A3] sets

  • The TCCM illuminates the check 4WD warning light when the diagnostic runs and fails.
  • The TCCM is reset after the ignition switch turns OFF.