DESCRIPTION
This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is ON even when the key is in the ignition key cylinder. Under normal conditions, the unlock warning switch assembly is ON when the key is in the ignition key cylinder.
DTC No. |
DTC Detection Condition |
Trouble Area |
DTC Output Confirmation Operation |
---|---|---|---|
B2780 |
The unlock warning switch assembly is not detected as being on when the ignition switch is ON (1 trip detection logic*). |
|
Insert the door control transmitter assembly into the ignition key cylinder. |
Vehicle Condition when Malfunction Detected |
Fail-safe Operation when Malfunction Detected |
---|---|
Engine cannot be started |
- |
DTC No. |
Data List and Active Test |
---|---|
B2780 |
Key SW |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CLEAR DTC |
(a) Clear the DTCs (See page ).
|
2. |
CHECK FOR DTC |
(a) Perform "DTC Output Confirmation Operation" procedure.
(b) Check for DTCs (See page ).
OK:
DTC B2780 is not output.
Result
Result |
Proceed to |
---|---|
DTC B2780 is output |
A |
DTC B2780 is not output |
B |
B |
USE SIMULATION METHOD TO CHECK |
|
3. |
INSPECT UNLOCK WARNING SWITCH ASSEMBLY |
(a) Remove the unlock warning switch assembly (See page ).
(b) Inspect the unlock warning switch assembly (See page ).
NG |
REPLACE UNLOCK WARNING SWITCH ASSEMBLY |
|
4. |
CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - UNLOCK WARNING SWITCH ASSEMBLY - BODY GROUND) |
(a) Disconnect the T10 transponder key ECU assembly connector.
(b) Disconnect the U1 unlock warning switch assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
T10-3 (KSW) - U1-1 |
Always |
Below 1 Ω |
T10-3 (KSW) or U1-1 - Body ground |
Always |
10 kΩ or higher |
U1-2 - Body ground |
Always |
Below 1 Ω |
OK |
REPLACE TRANSPONDER KEY ECU ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
AUTO LSD Indicator Light does not Come ON
DESCRIPTION
The AUTO LSD does not operate even if the VSC OFF switch is pressed under the
following conditions:
The brake system is faulty.
The temperature inside the hydraulic brake booster increases and the
AUTO LSD operation is suspended.
The rear differential is locked.
...
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the engine switch off, waiting time may be required before disconnecting
the cable from the battery terminal. Therefore, make sure to read the disconnecting
the cable from the battery terminal notice before proceeding with work.
Click he ...
Short to GND in Outer Mirror Indicator(Slave) (C1AB3)
DESCRIPTION
This DTC is stored when the blind spot monitor sensor RH detects a ground short
in the blind spot monitor indicator RH.
DTC Code
DTC Detection Condition
Trouble Area
C1AB3
With the blind spot monitor main switch assembly (w ...