Toyota Sienna Service Manual: Precaution
1. Check that the battery cables are connected to the correct terminals.
2. Disconnect the battery cables when the battery is given a quick charge.
3. Do not perform tests with a high voltage insulation resistance tester.
4. Never disconnect the battery cables while the engine is running.
5. Check that the charging cable nut is tightened on terminal b of the generator and the engine room r/b.
Parts location
SYSTEM DIAGRAM
PROBLEM SYMPTOMS TABLE
Charging system
...
On-vehicle inspection
1. Check battery electrolyte level
(a) Check the electrolyte level.
(1) If the electrolyte level is low, replace the battery
(or add distilled water) and check the charging
system.
2. CHECK BAT ...
Other materials:
Reassembly
1. INSTALL FRONT DISC
(a) Aligning the matchmarks, install the front disc.
HINT:
Select the installation position where the disc has
the minimum runout.
2. INSPECT DISC RUNOUT
(a) Temporarily fasten the disc with the hub nuts.
Torque: 103 N*m (1,050 kgf*cm, 76 ft.*lbf)
(b) Using a ...
Fuel Pump Primary Circuit
DTC P0230 Fuel Pump Primary Circuit
DESCRIPTION
This DTC is designed to detect a malfunction in the fuel pump
(FUEL PUMP) relay circuit. When the
system is normal, the battery voltage is applied to FPR terminal of the ECM
while the FUEL PUMP
relay is turned OFF. If the battery v ...
ECM Power Source Circuit
DESCRIPTION
When the ignition switch is turned to the ON position, the battery voltage is
applied to terminal IGSW of
the ECM. The ECM MREL output signal causes a current to flow to the coil,
closing the contacts of the EFI
relay and supplying power to terminal +B of the ECM.
If the igniti ...
