DESCRIPTION
DTC Code |
DTC Detection Condition |
Trouble Area |
DTC Output Confirmation Operation |
---|---|---|---|
B2793 |
A transponder chip malfunction (1 trip detection logic*). |
|
Insert the key into the ignition key cylinder, turn the ignition switch from off to ON and wait at least 20 seconds. |
B2794 |
A key with an incomplete key ID code is used to turn the ignition switch to ON (1 trip detection logic*). |
||
B2797 |
A key with a BCC malfunction is used to turn the ignition switch to ON (1 trip detection logic*). |
||
B2798 |
Key ID code identification cannot be completed within the specified time (1 trip detection logic*). |
Vehicle Condition when Malfunction Detected |
Fail-safe Operation when Malfunction Detected |
---|---|
Engine cannot be started |
- |
DTC No. |
Data List and Active Test |
---|---|
B2793 |
- |
B2794 |
- |
B2797 |
- |
B2798 |
- |
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs (See page ).
|
2. |
CHECK DTC OUTPUT |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs (See page ).
HINT:
If DTC B2793, B2794, B2797, or B2798 is stored, clear the DTCs before checking the next key.
OK:
DTC B2793, B2974, B2797 and B2798 are not output.
Result
Result |
Proceed to |
---|---|
DTCs are output for all of the keys |
A |
DTCs are output for any of the keys |
B |
DTCs are not output |
C |
B | ![]() |
REPLACE KEY THAT DTC IS OUTPUT |
C | ![]() |
USE SIMULATION METHOD TO CHECK |
|
3. |
CHECK CONNECTION OF CONNECTOR |
(a) Check that the connector is properly connected to the transponder key coil.
(b) Check that the engine starts with the key.
OK:
Engine starts normally.
OK | ![]() |
END (CONNECTOR WAS NOT CONNECTED PROPERLY) |
|
4. |
REPLACE TRANSPONDER KEY COIL |
(a) Clear the DTCs (See page ).
(b) Replace the transponder key coil (See page
).
(c) Check that the engine starts with the key (See page
).
OK:
Engine starts normally.
OK | ![]() |
END (TRANSPONDER KEY COIL WAS DEFECTIVE) |
NG | ![]() |
REPLACE TRANSPONDER KEY ECU ASSEMBLY |
System Diagram
SYSTEM DIAGRAM
This is a detailed diagram related to the main body ECU (multiplex network body
ECU).
Component
Function
Front door outside handle assembly LH
Receives request signals from the certification ECU (smart key ECU assembly) ...
Dtc Check / Clear
DTC CHECK / CLEAR
NOTICE:
When the diagnosis system is changed from normal mode to check mode or vice versa,
all DTCs and freeze frame data recorded in normal mode are cleared. Before changing
modes, always check and make a note of DTCs and freeze frame data.
HINT:
DTCs which are sto ...
Torque Converter Clutch Circuit Short to Battery or Open (P074015)
DESCRIPTION
Shift solenoid valve SL is turned on and off by signals from the ECM to control
the hydraulic pressure acting on the lock-up relay valve, which then controls operation
of the lock-up clutch.
DTC No.
DTC Detection Condition
Trouble Area
SA ...