Toyota RAV4 manuals

Toyota Sienna Service Manual: ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the theft deterrent (warning) ECU.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT FUSE (ECU-B)

  1. Remove the ECU-B fuse from the engine room J/B.
  2. Measure the resistance.

    Standard resistance: Below 1 Ω

2 CHECK INSTRUMENT PANEL J/B ASSEMBLY (POWER SOURCE)

 CHECK INSTRUMENT PANEL J/B ASSEMBLY (POWER SOURCE)

  1. Disconnect the 1C J/B connector.
  2.  Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

3 CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL J/B ASSEMBLY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL J/B ASSEMBLY - BODY GROUND)

  1. Disconnect the 1K and 1L J/B connector.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

REPLACE INSTRUMENT PANEL J/B ASSEMBLY

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Other materials:

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Fold Lock Switch Circuit
DESCRIPTION Each of the left and right seats has a fold lock switch that detects the lock condition of the seat legs and floor when the seat is in the stowed state. If the fold lock switch detects an unlock condition, the 3rd SEAT indicator on the combination meter will come on. WIRING DIAGR ...

Installation
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