Toyota Sienna Service Manual: Removal
NOTICE: Before removing the tire pressure warning ECU, read the registered transmitter IDs of all wheels and write them down to use for re-registration of transmitter IDs (See page TW-20).
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
| CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. |
2. REMOVE INSTRUMENT PANEL SAFETY PAD SUBASSEMBLY
HINT: Refer to the instructions for REMOVAL of the instrument panel safety pad (See page IP-5).
3. REMOVE TIRE PRESSURE WARNING ECU
(a) Remove the screw.
(b) Disconnect the connector and remove the tire pressure warning ECU.
Tire pressure warning ecu
COMPONENTS
...
Installation
1. INSTALL TIRE PRESSURE WARNING ECU
(a) Connect the connector to the tire pressure warning
ECU.
(b) Install the tire pressure warning ECU with the screw.
2. INSTALL INSTRUMENT PANEL SAFET ...
Other materials:
Problem symptoms table
Proceed to the reference page shown in the table below for
each malfunction symptom and troubleshoot each circuit.
HINT:
Troubleshooting of the theft deterrent system is based on the
premise that the door lock control system and the wireless
door lock control system are operating normally. Ac ...
VC Output Circuit
DESCRIPTION
The ECM constantly uses 5 V from the battery voltages supplied to the +B (BATT)
terminal to operate the
microprocessor. The ECM also provides this power to the sensors through the VC
output circuit.
When the VC circuit is short-circuited, the microprocessor in the ECM and
sens ...
Check and replace ecu
NOTICE: • The connector should not be disconnected from
the ECU. Perform the inspection from the
backside of the connector on the wire harness
side.
• When no measuring condition is specified,
perform the inspection with the engine stopped
and the ignition switch on.
• Che ...
