Low Tire Pressure Warning Lamp

LOW TIRE PRESSURE WARNING LAMP





Description





Uses CAN communication from the low tire pressure warning control unit to illuminate the low tire pressure warning lamp on the combination meter.









Component Function Check
1.CHECK THE ILLUMINATION OF THE LOW TIRE PRESSURE WARNING LAMP
Check that the low pressure warning lamp is turned OFF after illuminating for approximately 1 second, when the ignition switch is turned ON.
Is the inspection result normal?
YES - INSPECTION END
NO - Perform trouble diagnosis. SEE Diagnosis Procedure.




Diagnosis Procedure
1.POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Power Supply And Ground Circuit.
Is the inspection result normal?
YES - GO TO 2.
NO - Repair or replace error-detected parts.
2.PERFORM THE SELF-DIAGNOSIS
With CONSULT-III
Perform "AIR PRESSURE MONITOR" self-diagnosis.
Is DTC "U1000" detected?
YES - Perform trouble diagnosis for CAN communication system. TPMS.
NO - GO TO 3.
3.CHECK LOW TIRE PRESSURE WARNING LAMP SIGNAL
With CONSULT-III
1. Turn the ignition switch ON.

CAUTION:
Never start engine.
2. Select "DATA MONITOR" of "AIR PRESSURE MONITOR".
3. Read out the value of "WARNING LAMP".
Does the data monitor display change from ON to OFF?
YES - Check the combination meter. System Description.
NO - Replace the low tire pressure warning control unit. Exploded View.