OPERATION
- The signals are sent and received between engine-A/T-ECU (terminal No. 65) and immobilizer-ECU (terminal No. 7).
FUNCTION
- Engine-A/T-ECU sends or receives the control signals to or from immobilizer-ECU to certify the ignition key.
- If the registered ignition keys are close each other when starting the engine, radio interference may cause this code to be displayed.
- This code may be displayed when registering the key encrypted code.
NOTE:
TROUBLE JUDGMENT
Check Condition
- Ignition switch is in "ON" position.
Judgment Criterion
- When the communication error between engine-A/T-ECU and the immobilizer-ECU continues for 2 seconds or more.
PROBABLE CAUSE
- Open/short circuit in immobilizer system circuit or loose connector contact
- Failed immobilizer-ECU
- Failed engine-A/T-ECU
DIAGNOSIS PROCEDURE
)
)
Q: Is the check result normal?
YES:
Go to Step 2 
.NO: Repair.
NOTE: Before checking harness, check intermediate connector C-104, and repair if necessary.
- Check output line for open/short circuit and damage.
Q: Is the check result normal?
YES:
Go to Step 3 .NO: Repair.
