Diagnosis System

Warning lamp




The tire pressure warning lamp blinks when there is any malfunction in the tire pressure warning system.

NOTE: When the malfunction has been corrected, the tire pressure warning lamp does not come on.

DTCs (Normal mode)
DTCs are memorized in the tire pressure monitor
ECU and read by the blinks of the tire pressure warning lamp or using the hand-held tester (see DTC Check/Clear for the procedure of DTCs check).

Test mode
By switching from normal mode into test mode, you can inspect the tire pressure monitor receiver assembly, each tire pressure monitor valve sub-assembly, vehicle speed sensor, tire pressure monitor ECU and tire pressure warning switch.