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
Disassembly
1. REMOVE NO. 2 FRONT AXLE INBOARD JOINT BOOT LH CLAMP
(a) Using pliers, remove the No. 2 front axle inboard
joint boot LH clamp, as shown in the illustration.
2. REMOVE FRONT AXLE INBOARD JOINT BOOT LH
CLAMP
(a) Remove the front axle inboard joint boot LH clamp
using the same procedures a ...
Installation
1. INSTALL FUEL INJECTOR ASSEMBLY
(a) Apply a light coat of spindle oil or gasoline to new Orings,
and install them to each injector.
(b) Apply a light coat of spindle oil or gasoline where
the fuel delivery pipe contacts the O-ring.
(c) Push the fuel injector while turning it to inst ...
Installation
1. INSTALL SEAT POSITION AIRBAG SENSOR
Check that the ignition switch is off.
Check that the negative battery (-) terminal is
disconnected.
CAUTION:
After disconnecting the negative battery
terminal, wait for at least 90 seconds before
starting the operation.
Usin ...