The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Toyota dealer.

If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately.Initialization
INITIALIZATION
1. RESET TRANSAXLE COMPENSATION CODE
NOTICE:
If the following parts have been replaced, initialize the TCM and perform
the following "Reset Memory" and "Perform Road Test to Allow TCM to learn"
steps.
- ...
Assist Map Number Un-Writing (C1581)
DESCRIPTION
The power steering ECU stores this DTC when it determines that the assist map
is not written in the ECU.
HINT:
The assist map is data written in the power steering ECU to control the degree
of assistance. The assist map is selected based on ...
Mass Air Flow Circuit Range / Performance Problem (P0101)
DESCRIPTION
Refer to DTC P0102 (See page ).
DTC No.
DTC Detection Condition
Trouble Area
P0101
All of the following conditions are met (2 trip detection logic):
(a) The engine is running.
(b ...