SECURITY LIGHT 23, DTC B2139/P1260[IMMOBILIZER SYSTEM (ADVANCED KEYLESS SYSTEM)]

id0902e3801500

SECURITY LIGHT: 23	ID number data in the PCM and the keyless control module do not match.
DTC: B2139/P1260
DETECTION CONDITION	•  ID number data in the keyless control module and the PCM are different.
POSSIBLE CAUSE	•  Necessary procedures were not performed using the M-MDS after replacing the PCM. •  Keyless control module malfunction •  PCM malfunction

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY DTC •  Are either U1900 or U0073, or both, displayed, by either the keyless control module or the PCM, or both?	Yes	Perform troubleshooting according to the corresponding DTC inspection. (See PROCEDURES FOR DETERMINING THE LOCATION OF A MALFUNCTION[MULTIPLEX COMMUNICATION SYSTEM].)
		No	Go to the next step.
2	EXAMINE KEYLESS CONTROL MODULE AND PCM •  Perform procedures for when replacing the PCM only. (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[ADVANCED KEYLESS SYSTEM].) •  Using the registered key, turn the ignition switch to the ON position. •  Is the DTC displayed? ―  Security light: 23 ―  M-MDS: B2139/P1260	Yes	•  Replace the keyless control module and perform the resetting procedure for the immobilizer system when replacing the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION[ADVANCED KEYLESS SYSTEM].) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[ADVANCED KEYLESS SYSTEM].) •  Go to the next step.
		No	DTC troubleshooting completed.
3	VERIFY DTC •  Is the DTC displayed again? ―  Security light: 23 ―  M-MDS: B2139/P1260	Yes	•  Replace the PCM and perform the resetting procedure for the immobilizer system when replacing the PCM. (See PCM REMOVAL/INSTALLATION[LF, L3].) (See PCM REMOVAL/INSTALLATION[L3 Turbo].) (See PCM REMOVAL/INSTALLATION[ZJ, ZY, Z6].) (See PCM REMOVAL/INSTALLATION[MZ-CD 1.6 (Y6)].) (See IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[ADVANCED KEYLESS SYSTEM].)
		No	DTC troubleshooting completed.