Toyota RAV4 manuals

Toyota Sienna Service Manual: Check for short circuit

If the wire harness is ground shorted, locate the section by conducting a resistance check with the body ground (below).

(a) If the wire harness is ground shorted (Fig. 5), locate the section by conducting a resistance check with the body ground (below).

 

Check the resistance with the body ground

(b) Check the resistance with the body ground.

(1) Disconnect connectors A and C and measure the resistance.

Standard resistance (Fig. 6)

HINT:

Measure the resistance while lightly shaking the wire harness vertically and horizontally. If your results match the examples above, an open circuit exists between terminal 1 of connector A and terminal 1 of connector C.

(2) Disconnect connector B and measure the resistance.

Disconnect connector B and measure the resistance

Standard resistance (Fig. 7)

If the results match the examples above, a short circuit exists between terminal 1 of connector B2 and terminal 1 of connector C.

Check for open circuit
(a) For an open circuit in the wire harness in Fig. 1, the resistance or voltage, as described below. (b) Check the resistance.  Check the resistance Standard resistance (Fig. 2) ...

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 s ...

Other materials:

Precaution
1. GENERAL PRECAUTION  When using the battery during inspection, do not bring the positive and negative tester probes too close to each other as a short circuit may occur. PARTS LOCATION SYSTEM DIAGRAM 1. SIGNAL COMMUNICATION TABLE Driver Side Power Seat (w ...

Terminals of ECU
1. FOLD SEAT CONTROL ECU LH Disconnect the fold seat control ECU connectors. Measure the voltage and resistance of the wire harness side connectors. If the result is not as specified, there may be a malfunction on the wire harness side.  Reconnect the fold seat control E ...

CD cannot be Inserted / Played or CD is Ejected Right After Insertion
INSPECTION PROCEDURE 1 CHECK IF A PROPER CD IS INSERTED Make sure that the CD is an audio CD or a CD with an MP3 or WMA file, and that it is not deformed, flawed, stained, burred, or otherwise defective. OK: Normal CD. HINT:  Translucent or uniquely-shaped CDs cannot be play ...

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