Toyota Sienna Service Manual: Introduction
- How to use this manual
- Identification information
- Repair instruction
- How to troubleshoot ecu controlled systems
- Terms
- 2Gr-fe engine control system
- Preparation 2gr-fe engine mechanical
- Preparation 2gr-fe fuel
- 2Gr-fe emission control
- Preparation 2gr-fe cooling
- Preparation 2gr-fe lubrication
- 2Gr-fe charging
- U151e automatic transaxle
- U151f automatic transaxle
- Transfer
- Propeller shaft
- Drive shaft
- Differential
- Axle
- Suspension
- Brake control
- Power steering
- Air conditioning
Toyota Sienna Service Manual
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How to use this manual
GENERAL INFORMATION
1. GENERAL DESCRIPTION
(a) This manual is written in accordance with SAE J2008.
(b) Repair operations can be separated mainly in the following 3 processes:
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Other materials:
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 ...
Reassembly
1. INSTALL LH REAR BUMPER SIDE RETAINER
Install the LH rear bumper side retainer with the 3
screws.
2. INSTALL RH REAR BUMPER SIDE RETAINER
Install the RH rear bumper side retainer with the 3
screws.
3. INSTALL REAR BUMPER REINFORCEMENT SUBASSEMBLY
Install the rear bumper reinf ...
Terminals of ECU
1. COMBINATION METER ASSEMBLY
*1: with Power Rear No. 2 Seat with Stowing Function
*2: with Theft Deterrent System
Waveform 1 (Reference) : Using an oscilloscope:
OK:
HINT:
As vehicle speed increases, the cycle of the signal
waveform narrows.
Wavefor ...