Self-Diagnostic Code “9 — 4” Keyless System Authentication Error
This condition:
ECM detected that its ID code does not correspond with the D code registered in the keyless control unit.
Correction:
Change the ECM to correspond with their ID codes.
Self-Diagnostic Code “9 — 5” Keyless System Communication Error
This condition:
The ECM cannot receive CAN communication information from keyless control unit.
Correction:
- Check communication such as open circuit on communication wire, poor or loose connections.
- Check the CAN communication line output voltage.
Refer to “inspection of the Keyless Control Unit and Its Circuit” (Page 1A-82).
Self-Diagnostic Code “9 — 6” Keyless System Failure
This condition:
There is an irregularity on the internal circuit of the keyless control unit.
Correction:
Replace the keyless control unit and ECM.
Troubleshooting Without Self-Diagnostic Code
Before troubleshooting, make sure that there is not a self—diagnostic code indication.
