Toyota RAV4 Service Manual: Engine immobiliser system malfunction
Description
This dtc is output when one of the following occurs: 1) the ecm detects errors in its own communications with the transponder key ecu; 2) the ecm detects errors in the communication lines; or 3) the ecu communication id between the transponder key ecu and ecm is different and an engine start is attempted. Before troubleshooting for this dtc, make sure no transponder key ecu dtcs are present. If present, troubleshoot the transponder key ecu dtcs first.
Wiring diagram
Inspection procedure
- Check for dtc
- Delete the dtc (see page ei-18).
- Recheck for dtc.
Ok: b2799 output does not reoccur.
- Check wire harness (transponder key ecu - ecm)
- Disconnect the e46 ecu connector.
- Disconnect the a9 ecm connector.
- Measure the resistance of the wire harness side connectors.
Standard resistance 
- Check transponder key ecu (operation)
- Temporarily replace the transponder key ecu with a new or normally functioning one.
- Check that then engine starts normally.
Ok: engine starts normally.
End (transponder key ecu is defective)
Communication malfunction no. 1
Description
This dtc is output when a communication error occurs between the transponder
key amplifier and
transponder key ecu. Some possible reasons for the communication error are: 1) 2
or ...
Security indicator light circuit
Description
When the transponder key is registered, the transponder key ecu indicates the
key registration condition
by lighting up, blinking or turning off the security indicator.
Wiring diagram ...
Other materials:
Turn signal lever
Operating instructions
Right turn
Lane change to the right (move
the lever partway and release
it)
the right hand signals will flash 3
times.
Lane change to the left (move
the lever partway and release
it)
the left hand signals will flash 3
times.
Left turn
Turn signals ...
Rear occupant classification sensor lh circuit malfunction
Description
The rear occupant classification sensor lh circuit consists of the occupant
classification ecu and the rear
occupant classification sensor lh.
Dtc b1782 is recorded when a malfunction is detected in the rear occupant
classification sensor lh
circuit.
Wiring diagram
...
Ig power supply voltage malfunction
Description
The power steering ecu distinguishes the ignition switch status as on or off
through the ig power
source circuit.
Wiring diagram
Inspection procedure
Read value of intelligent tester (ig power supply)
Connect the intelligent tester (with can vim) to the
dlc3.
...
