After taking the specified steps to correct the suspected problem, check that the warning light turns off.



Have the vehicle inspected immediately.
Follow the correction procedures. (smart key system)Horn Circuit
DESCRIPTION
When the theft deterrent system is switched from the armed state to the alarm
sounding state, the main body ECU (driver side junction block assembly) transmits
a signal to cause the horn to sound at intervals of 0.4 seconds.
WIRING DIAGRAM
...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL BEARING BRACKET HOLE SNAP RING (for RH Side)
(a) Install a new bearing bracket hole snap ring to the front drive shaft assembly
RH.
2. INSTALL FRONT DRIVE SHAFT BEARING (for RH Side)
(a) Using SST, install a ne ...
Theft Deterrent System Presence Detection (B279C)
DESCRIPTION
If an ECM that is incompatible with the engine immobiliser system is installed,
the ECM stores this DTC.
DTC No.
DTC Detection Condition
Trouble Area
B279C
An ECM that is incompatible ...