DESCRIPTION
These DTCs are stored if a key that does not have a transponder chip is inserted into the ignition key cylinder or if communication between the key and the transponder key ECU assembly is impossible.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B2796 |
The key code cannot be transmitted. |
|
B2798 |
Key code identification cannot be completed within the specified time (0.15 to 0.5 sec.). |
|
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Immobiliser / Data List.
(e) Read the Data List according to the display on the Techstream.
Immobiliser (Transponder Key ECU Assembly)
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Immobiliser |
Immobiliser system status/SET or UNSET |
UNSET: Ignition switch ON SET: Without key |
- |
OK:
On the Techstream screen, the item changes between UNSET and SET according to the chart above.
OK | ![]() |
REPLACE TRANSPONDER KEY ECU ASSEMBLY |
|
2. |
CHECK KEY |
(a) Insert the vehicle's other key into the ignition key cylinder.
(b) Check that the engine starts with this key.
OK:
The engine starts.
NG | ![]() |
GO TO STEP 5 |
|
3. |
RE-REGISTER KEY |
(a) Re-register the original key (See page
).
|
4. |
CHECK ENGINE START |
(a) Check that the engine starts.
OK:
The engine starts.
OK | ![]() |
END (KEY WAS NOT REGISTERED CORRECTLY) |
NG | ![]() |
REPLACE KEY |
5. |
REPLACE TRANSPONDER KEY AMPLIFIER |
(a) Replace the transponder key amplifier (See page
).
|
6. |
CHECK ENGINE START |
(a) Check that the engine starts.
OK:
The engine starts.
OK | ![]() |
END (TRANSPONDER KEY AMPLIFIER WAS DEFECTIVE) |
NG | ![]() |
REPLACE TRANSPONDER KEY ECU ASSEMBLY |
Follow the correction procedures. (smart key system)
After taking the specified steps to correct the suspected problem, check that
the warning light turns off.
- If the malfunction indicator lamp comes on while driving
First check the following:
• Is the fuel empty?
If it is, fill the fuel tan ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTCS
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG).
(d) Turn the Techstream on.
(e) Check for DTCs. Enter the following menus: Body Electrical / Smart Key /
Trouble ...
Back Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
When the back door entry lock and unlock functions do not operate, one of the
following may be malfunctioning: 1) power door lock control system; 2) outside electrical
key oscillator (for rear side); 3) certification ECU (smart key ECU assembl ...