Circuit Opening Relay On-Vehicle Inspection

Engine. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
3Zr-Fae Engine Control System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

  2. INSPECT MAIN BODY ECU

  3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

Circuit Opening Relay -- On-Vehicle Inspection



1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
w/ Navigation System (for HDD):
After the ignition switch is turned off, the HDD navigation system requires approximately a minute to record various types of memory and settings. As a result, after turning the ignition switch off, wait a minute or more before disconnecting the cable from the negative (-) battery terminal.


2. INSPECT MAIN BODY ECU
NOTICE:
The circuit opening relay is built into the main body ECU (instrument panel junction block).


  1. Measure the resistance according to the value(s) in the table below.


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.Circuit Opening Relay On-Vehicle Inspection


    Text in Illustration
    *1
    		Component without harness connected
    (Main Body ECU)
    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    1B-11 - 1A-8
    		Battery voltage not applied to terminals 1E-5 and 1D-1
    		10 kΩ or higher
    1B-11 - 1A-8
    		Battery voltage applied to terminals 1E-5 and 1D-1
    		Below 1 Ω
    If the result is not as specified, replace the main body ECU.


3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL