DTC B1271 Combination Meter ECU Communication Stop
DESCRIPTION
DTC B1271 is output when communication between the combination meter and the multiplex network gateway ECU stops for more than 10 seconds.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|
B1271 |
Combination meter communication stops |
|
WIRING DIAGRAM

INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (COMBINATION METER - BATTERY)

Standard voltage

2 CHECK HARNESS AND CONNECTOR (COMBINATION METER - GROUND)

Standard resistance

3 CHECK COMMUNICATION LINE

Standard resistance

HINT:
*1: for Automatic A/C
*2: for Manual A/C
Result

REPLACE COMBINATION METER
A/C ECU Communication Stop
Power Seat ECU Communication StopPrecaution
1. Before operating the power rear no. 2 seat with
stowing function, make sure that there is nothing in
the path of the seat.
CAUTION:
If someone or something is caught between the seat
and other parts, injury or damage may result.
If the system detects that the folding motor is locke ...
Removal
1. REMOVE FRONT WHEEL
2. REMOVE REAR WHEEL
3. REMOVE TIRE PRESSURE WARNING VALVE AND TRANSMITTER
(a) Remove the valve core and cap, and release the air
from the tire.
(b) After ensuring that a sufficient amount of air has
been released, remove the nut and washer that are
used to secure ...
Rear washer motor
ON-VEHICLE INSPECTION
1. INSPECT REAR WASHER MOTOR
Pour the water into the washer jar with the rear
washer motor assembly installed to the washer jar
assembly.
Connect the battery (+) to the terminal 1 of the rear
washer motor assembly, the battery (-) to the
terminal ...