DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction
DESCRIPTION
This DTC will be output if the transponder key ECU does not detect that the unlock warning switch is on even when the ignition switch is on (Under the normal conditions, the unlock warning switch is on when the ignition switch is on).
DTC No. |
DTC Detection Condition |
Trouble Area |
B2780 |
Unlock warning switch on is not detected when ignition switch is on |
|
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
Transponder key ECU:
OK: ON (Key is in ignition key cylinder) appears on the screen
2 INSPECT UNLOCK WARNING SWITCH ASSEMBLY
Resistance
3 CHECK HARNESS AND CONNECTOR (TRANSPONDER KEY ECU ASSEMBLY - UNLOCK WARNING SW ASSEMBLY)
Resistance
4 CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SW ASSEMBLY - BODY GROUND)
Resistance
REPLACE TRANSPONDER KEY ECU ASSEMBLY
Messages
Concept
The menu centrally displays all messages arriving
in the vehicle in list form.
General information
The following messages can be displayed:
Traffic messages.
Check Control messages.
Service requirements messages.
Communication messages, for example emails,
SMS text messages or reminder ...
Concept, General information, Safety information
Concept
The lane departure warning alerts when the vehicle
is about to run off the road or exit the lane.
General information
This camera-based system warns starting at a
minimum speed.
The minimum speed is country-specific and is
displayed in the menu for the intelligent Safety
systems.
Warnings ...
On-vehicle inspection
1. INSPECT THROTTLE BODY
Listen to the throttle control motor operating sounds.
Turn the ignition switch to the ON position.
When pressing the accelerator pedal position
sensor lever, listen to the running motor. Make
sure that no friction noise comes from the
motor.
...