TIRE PRESSURE WARNING SYSTEM, Diagnostic DTC:C2148/48

DTC Code	DTC Name
C2148/48	Different Diameter Tire

DESCRIPTION

The tire pressure warning ECU is integrated into the skid control ECU (brake actuator assembly). If the tire pressure warning system is malfunctioning, the skid control ECU (brake actuator assembly) will store this DTC.


DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
C2148/48	Different Diameter Tire	During initialization, diameter of only 1 tire is different.	Tire	-

CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake actuator assembly), perform VSC system variant learning, acceleration sensor zero point calibration and tire pressure warning system initialization.

VSC system:Click here

Tire pressure warning system:Click here

PROCEDURE

CHECK TIRE SIZE

Check if a different sized tire is being used.

Note:
If the specified size of tire is not used on all 4 wheels, this system will not operate correctly.

OK

The specified size of tire is used on all 4 wheels.

Result


Proceed to
OK
NG

NG

REPLACE TIRES

OK

CHECK FOR DTC (VEHICLE STABILITY CONTROL SYSTEM)

Check if VSC system DTCs are output.
Click here

Result


Result	Proceed to
DTCs are not output.	A
DTCs are output.	B

B

GO TO VEHICLE STABILITY CONTROL SYSTEM

Click here

A

CHECK DTC OUTPUT (C2148/48)

Clear the DTCs.
Click here

Chassis > ABS/VSC/TRC > Clear DTCs
Turn the ignition switch off.
Turn the ignition switch to ON.
Perform initialization.
Click here
After driving the vehicle for a while, check that the DTC is not output again.
Click here

Chassis > ABS/VSC/TRC > Trouble Codes

Result


Proceed to
NEXT