Toyota RAV4 manuals

Toyota Sienna Service Manual: Terminals of ecm

1. Ecm

Ecm

Hint: each ecm terminal's standard voltage is shown in the table below.

In the table, first follow the information under "condition".

Look under "symbols (terminal no.)" For the terminals to inspected. The standard voltage between the terminals is shown under "specific condition".

Use the illustration above as a reference for the ecm terminals.

Ecm

Ecm

(a) Waveform 1

Reference:

Ecm

(b) Waveform 2

Reference:

Ecm

(c) Waveform 3

Ecm

Reference:

(d) Waveform 4

Ecm

Reference:

(e) Waveform 5

Ecm

Reference:

(f) Waveform 6

Ecm

Reference:

(g) Waveform 7

Ecm

Reference:

(h) Waveform 8

Ecm

Reference:

Problem symptoms table
HINT: If a normal code is displayed during the diagnostic trouble code check although the trouble still occurs, check the electrical circuits for each symptom in the order given in the chart ...

Diagnosis system
1. DESCRIPTION (a) When troubleshooting OBD II vehicles, the only difference from the usual troubleshooting procedure is to connect an OBD II scan tool complying with SAE J1987 or a intelligen ...

Other materials:

AVC-LAN Circuit
DESCRIPTION Each unit of the navigation system connected to the AVC-LAN (communication bus) transfers the signal of each switch by communication. When a short to +B or short to ground occurs in this AVC-LAN, the navigation system will not function normally as the communication is discontin ...

Ignition key cylinder light
ON-VEHICLE INSPECTION 1. KEY CYLINDER LIGHT ASSEMBLY  Connect the battery positive (+) lead to the terminal 1 and the battery negative (-) lead to the terminal 2, and check that the indicator light comes on. 2. TRANSPONDER KEY AMPLIFIER  Inspect key cylinder light o ...

DTC check / clear
HINT:  Illustrations may differ from the actual vehicle depending on the device settings and options. Therefore, some detailed areas may not be shown exactly the same as on the actual vehicle.  If the system cannot enter the diagnostic mode, inspect all AVC-LAN communication ...

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