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 with engine immobiliser system is installed. |
ECM |
CAUTION / NOTICE / HINT
NOTICE:
If the ECM is replaced, register the ECU communication ID (See page
).
PROCEDURE
1. |
CHECK DTC OUTPUT |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs (See page ).
OK:
DTC B279C is not output.
Result |
Proceed to |
---|---|
OK |
A |
NG (for 2GR-FE) |
B |
NG (for 1AR-FE) |
C |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
REPLACE ECM |
C | ![]() |
REPLACE ECM |
Removal
REMOVAL
PROCEDURE
1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the cable from the negative (-)
battery terminal to disable the SRS system.
NOTICE:
When disconnecting the cable, some systems ne ...
VC Output Circuit
DESCRIPTION
The ECM constantly generates 5 V of power from battery voltage supplied to the
+B (BATT) terminal to operate the microprocessor. The ECM also provides this power
to the sensors through the VC output circuit.
When the VC circuit is short-cir ...
Steering Lock Position Signal Circuit Malfunction (B2285)
DESCRIPTION
This DTC is stored when serial communication signals and LIN communication signals
in the circuit between the power management control ECU and steering lock actuator
assembly (steering lock ECU) are inconsistent.
DTC No.
...