DTC B1144: Abnormal Signal from Keyless Receiver Unit
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see
TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Clear the DTCs with the HDS.
- Turn the ignition switch OFF and remove the ignition key from the key cylinder.
- Using the keyless transmitter, press the LOCK/ UNLOCK, TRUNK and PANIC buttons several times.
- Turn the ignition switch ON (II).
- Check for DTCs with the HDS.
Is DTC B1144 indicated?
YES -Go to step 6.
NO -The system is OK at this time.
- Do the keyless receiver unit input test (see KEYLESS RECEIVER UNIT INPUT TEST
).
Is the input test OK?
YES -Substitute a known-good keyless receiver unit, and recheck. If DTC is gone, the original keyless receiver unit is faulty; replace it. If the DTC B1144 is still indicated, replace the door multiplex control unit.
NO -Refer to the KEYLESS RECEIVER UNIT INPUT TEST and correct the cause.