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SECURITY AND LOCKS [ADVANCED KEYLESS SYSTEM] 09–14A–23 09–14A ON-BOARD DIAGNOSYS SYSTEM OUTLINE (IMMOBILIZER SYSTEM) E5U091467000N07 • The immobilizer system is provided with a malfunction diagnosis function. • Malfunction diagnosis of the immobilizer system occurs automatically when the start knob is turned from the LOCK (ACC) to the ON (START) position. • If the results of the malfunction diagnosis show a malfunction in the immobilizer system, the security light indicates a DTC. At the same time, DTCs are stored in the PCM and keyless control module. The stored DTCs Caution • Always use the WDS or equivalent to verify DTCs even if the security light indicates a DTC. If the security light itself has a malfunction, it is possible that a DTC may not be indicated properly. Note • If two or more malfunctions are detected as a result of malfunction diagnosis, only the DTC with the lowest number of those detected will be indicated by the security light. The PCM and keyless control module • If two or more immobilizer system DTCs are verified, first repair the part of the DTC indicated by the security light. After completely repairing one location, turn the ignition switch from the LOCK to the ON DTC table Note • In the approx. 1 min after detecting a malfunction and before indicating the DTC, the security light illuminates or flashes in the following patterns: Security light flashing pattern (Before indicating a DTC) DTC 11, 12, 13, 14, 15, 16 21, 22, 23 DTC Detection condition Security light flashing pattern Keyless warning light WDS or equivalent display Keyless control module Instrument cluster PCM 11 Off − B1681 P1260 No communication detected On B1681 B1681 P1260 No communication detected 12 On B2103 B2103 P1260 Coil antenna malfunction 13 Off − B1600 P1260 Key ID number cannot be read 14 Off − B1602 P1260 Key ID number cannot be read ILLUMINATED GOES OUT ILLUMINATED GOES OUT |