SECURITY LIGHT: 22, DTC: B10DA:51/P1260:00 [IMMOBILIZER SYSTEM (ADVANCED KEYLESS AND START SYSTEM)]


id0902e3358500

DTC

Security light flashing pattern

22

Communication error between keyless control module and PCM (data transfer error)

M-MDS display

Keyless control module

B10DA:51

PCM

P1260:00

POSSIBLE CAUSE
•  Malfunction in wiring harness (CAN line) between keyless control module and PCM
•  The immobilizer system-related parts have not been programmed after replacing the keyless control module.
•  The immobilizer system-related parts have not been programmed after replacing the PCM.
•  Keyless control module malfunction
•  PCM malfunction


Diagnostic Procedure

Step

Inspection

Action

1
VERIFY DTCs
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: U0001:88
―  PCM: U0073:00
Yes
Go to the applicable DTC inspection.
No
Go to the next step.
2
VERIFY WHETHER PROGRAMMING OF IMMOBILIZER SYSTEM-RELATED PARTS HAS BEEN PERFORMED AFTER REPLACE KEYLESS CONTROL MODULE
•  After replace the keyless control module, has the programming of immobilizer system-related parts been performed?
Yes
Go to the next step.
No
Perform the programming of immobilizer system-related parts after replace the keyless control module only, then go to the next step.
3
VERIFY WHETHER PROGRAMMING OF IMMOBILIZER SYSTEM-RELATED PARTS HAS BEEN PERFORMED AFTER REPLACE PCM
•  After replace the PCM, has the programming of immobilizer system-related parts been performed?
Yes
Go to the next step.
No
Perform the programming of immobilizer system-related parts after replace the PCM only, then go to the next step.
4
PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS KEYLESS CONTROL MODULE
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10DA:51
―  PCM: P1260:00
Yes
Replace the keyless control module and program the immobilizer system-related parts.
Go to the next step.
No
Go to Step 7.
5
PERFORM DTC INSPECTION AND VERIFY THAT MALFUNCTIONING PART IS PCM
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10DA:51
―  PCM: P1260:00
Yes
Replace the PCM and program the immobilizer system-related parts.
Go to the next step.
No
Go to Step 7.
6
VERIFY TROUBLESHOOTING COMPLETED
•  Perform the immobilizer system DTC inspection using the M-MDS.
•  Is the following DTC present?
―  Keyless control module: B10DA:51
―  PCM: P1260:00
Yes
Inspect the DTC P1260:00.
(See MZ-CD 1.6.)
No
Go to the next step.
7
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Are any DTCs present?
Yes
Go to the applicable DTC inspection.
No
DTC troubleshooting completed.