DTC 21

TROUBLE DIAGNOSIS FOR SYSTEM


Transmitter no Data


MALFUNCTION CODE NO. 21, 22, 23, 24
1.CHECK CONTROL UNIT
Drive for several minutes. Check all tire pressures with CONSULT-III "DATA MONITOR".
Are all tire pressures displayed 0 kPa?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK TIRE PRESSURE RECEIVER CONNECTOR
1. Disconnect tire pressure receiver harness connector E74 (FR-LH), E75 (FR-RH), B482 (RR-RH), B115
(RR-LH).
2. Check terminals for damage or loose connection.
3. Reconnect harness connector.
OK or NG
OK - Replace low tire pressure warning control unit. Refer to Service and Repair, then GO TO 3.
NG - Repair or replace tire pressure receiver harness connector.
ID REGISTRATION
Perform ID registration of all transmitters.
Are there any tires that ID can not be registered to?
YES - Replace transmitter of the tire, then GO TO 5.
NO - GO TO 4.
4.VEHICLE DRIVING
Drive at a speed of 40 km/h (25 MPH) or more for several minutes without stopping.
Check all tire pressures with CONSULT-III "DATA MONITOR" within 15 minutes after vehicle speed becomes
17 km/h (11 MPH).
Does "DATA MONITOR " display tire pressure as normal without any warning lamp?
YES - INSPECTION END
NO - GO TO 5.
5.ID REGISTRATION AND VEHICLE DRIVING
1. Perform ID registration of all transmitters.
2. Drive at a speed of 40 km/h (25 MPH) or more for 3 minutes, and then drive the vehicle at any speed for
10 minutes. Then check all tire pressures with CONSULT-III "DATA MONITOR" within 5 minutes.
Does "DATA MONITOR" display tire pressure as normal without any warning lamp?
YES - INSPECTION END
NO - Go to the inspection applicable to DTC.