C1720

C1720, C1721, C1722, C1723 TRANSMITTER





Description





The transmitter (1) is installed at the position of the air valve on the road wheel (2). It measures the tire pressure and transmits the tire pressure information by radio waves.

White arrow : Outside





DTC Logic

DTC logic






DTC REPRODUCTION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2. Perform "AIR PRESSURE MONITOR" self-diagnosis.
Is DTC "C1720", "C1721", "C1722" or "C1723" detected?
YES - Perform trouble diagnosis. C1720.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK TIRE PRESSURE SIGNAL
With CONSULT-III
1. Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
2. Within 5 minutes, select "DATA MONITOR" of "AIR PRESSURE MONITOR".
3. Read the values that are displayed for "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR", and "AIR
PRESS RL".





Is the tire pressure of 0 kPa displayed for all wheels?
YES - GO TO 2.
NO - GO TO 4.
2.CHECK HARNESS BETWEEN LOW TIRE PRESSURE WARNING CONTROL UNIT AND TIRE PRESSURE RECEIVER
1. Turn the ignition switch OFF.
2. Disconnect low tire pressure warning control unit harness connector and tire pressure receiver harness connector.
3. Check the continuity between low tire pressure warning control unit harness connector and tire pressure receiver harness connector.





4. Check the continuity between low tire pressure warning control unit harness connector and ground.






Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace error-detected parts.
3.CHECK TIRE PRESSURE RECEIVER
Check the tire pressure receivers. C1728.
Is the inspection result normal?
YES - GO TO 4.
NO - Replace the tire pressure receiver.
4.CHECK TIRE PRESSURE MONITORING CONTROL SYSTEM
Check the Tire Pressure Monitoring System (TPMS). C1754.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace the low tire pressure warning control unit.
5.CHECK TRANSMITTERS
1. Drive for several minutes at a speed of 40 km/h (25 MPH) or more, then stop the vehicle.
2. Within 15 minutes, select "DATA MONITOR" of "AIR PRESSURE MONITOR" and display the tire pressure for all wheels.
3. Check that the tire pressures is the specified value.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace the transmitter.




Special Repair Requirement
1.CHECK TIRE PRESSURE
Check the tire pressure of all wheels. Specifications.
Does the tire pressure match the specified value?
YES - GO TO 2.
NO - Check the road wheels and tires. Adjust the tire pressures to the specified values.
2.REGISTER TRANSMITTER ID
Perform transmitter ID registration. Transmitter ID Registration Procedure.
- END