C1750

C1750, C1751, C1752, C1753 RECEIVER





Description





The front (A) tire pressure receiver (1) and rear (B) tire pressure receiver (2) receive the tire pressure signal by radio waves from the transmitter at each wheel, and transmit the tire pressure signal to the low tire pressure warning control unit.




DTC Logic

DTC DETECTION 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 "C1750", "C1751", "C1752", or "C1753" detected?
YES - Perform trouble diagnosis. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK TIRE PRESSURE RECEIVER INPUT SIGNAL
1. Turn the ignition switch ON.

CAUTION:
Never start engine.
2. Use an oscilloscope and check the input signal waveform between the low tire pressure warning control unit harness connector terminals and ground. Testing and Inspection.





Is the inspection result normal?
YES - INSPECTION END
NO - GO TO 2.
2.CHECK TIRE PRESSURE RECEIVER POWER SUPPLY CIRCUIT
1. Disconnect the tire pressure receiver harness connector.
2. Check the voltage between the tire pressure receiver harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace error-detected part.
3.CHECK TIRE PRESSURE RECEIVER GROUND CIRCUIT
1. Disconnect the low tire pressure warning control unit harness connector and tire pressure receiver harness connector.
2. Check the continuity between the low tire pressure warning control unit harness connector and tire pressure receiver harness connector.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace error-detected part.
4.CHECK FOR CHANGE TO THE TIRE PRESSURE RECEIVER INSTALLATION POSITION. (EXAMPLE:
FRONT LH RECEIVER OK/NG JUDGMENT)
With CONSULT-III
1. Exchange the front LH tire pressure receiver with the front RH tire pressure receivers.
2. Perform "AIR PRESSURE MONITOR" self-diagnosis.
Is DTC "C1751" detected?
YES - Replace the front RH tire pressure receiver.
NO - Perform trouble diagnosis of the low tire pressure warning control unit. C1754.