Toyota RAV4 Service Manual: Unlock warning switch
Inspection
- Inspect unlock warning switch assembly
- Measure the resistance of the switch.
Standard resistance 
If the result is not as specified, replace the switch assembly.
Ecu power source circuit
Description
This circuit provides power to operate the transponder key ecu.
Wiring diagram
Inspection procedure
- Inspect fuse (ecu-b2)
- Remove the ecu-b2 fuse from the engine room no. 2 Relay block.
- Measure the resistance of the fuse.
Standard resistance:
below 1 
- Check wire harness (transponder key ecu - battery and body ground)
- Disconnect the e46 ecu connector.
- Measure the resistance and voltage of the wire harness side connector.
Standard resistance 
Standard voltage 
Proceed to next circuit inspection shown in problem symptoms table
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 ...
Horn
...
Other materials:
Removal (2006/01- )
Disconnect cable from negative battery
terminal
Caution:
Wait at least 90 seconds after disconnecting the
cable from the negative (-) battery terminal to
prevent airbag and seat belt pretensioner activation.
Remove air cleaner case sub-assembly (for
2az-fe)
Remove the air clea ...
Inspection
Inspect cylinder block for warpage
Using a precision straightedge and feeler gauge,
measure the warpage of the surface that is in
contact with the cylinder head gasket.
Maximum warpage:
0.05 Mm (0.0020 In.)
If the warpage is greater than the maximum, replace
the cylinder block ...
For vehicles equipped with catalytic converter caution:
If a large amount of unburned gasoline or gasoline
vapors flow into the converter, it may cause
overheating and create a fire hazard. To prevent this,
observe the following precautions.
Use only unleaded gasoline.
Avoid idling the engine for more than 20 minutes.
Avoid performing unnecess ...