DTC Diagnosis Procedure
- Activate and display TPMS sensor IDs
- Display tire pressure reported by the TPMS sensor
- Read TPMS DTCs
- Register TPMS sensor IDs
- CHECK TIRE PRESSURE RECEIVER INPUT SIGNAL
- Turn ignition switch ON.
- Check the input signal waveform between the low tire pressure warning control unit connector and ground.
STANDBY STATUSLow tire pressure warning control unit
--
Value (Approx.)
Connector
Terminal
M90
3
Ground
Approx. 4.5 V
4
5
6
WHEN SIGNAL IS RECEIVEDLow tire pressure warning control unit
--
Value (Approx.)
Connector
Terminal
M90
3
Ground
Approx. 4.5 V
4
5
6
Is the inspection result normal?
YES
Check connector for loose connection, then perform "DTC CONFIRMATION PROCEDURE" again. Refer to DTC Logic .
NO
GO TO 2.
- CHECK TIRE PRESSURE RECEIVER POWER SUPPLY CIRCUIT
- Disconnect tire pressure receiver connector.
- Turn ignition switch ON.
- Check voltage between tire pressure receiver connector and ground.
Tire pressure receiver
--
Voltage
Connector
Terminal
E43 (Front LH)
1
Ground
Battery voltage
E60 (Front RH)
C109 (Rear LH)
C110 (Rear RH)
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace the malfunctioning harness or connector.
- CHECK TIRE PRESSURE RECEIVER GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect low tire pressure warning control unit connector.
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connector.
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M90
26
E43 (Front LH)
4
Yes
25
E60 (Front RH)
24
C109 (Rear LH)
23
C110 (Rear RH)
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace the malfunctioning harness or connector.
- CHECK FOR CHANGE TO THE TIRE PRESSURE RECEIVER INSTALLATION POSITION NOTE: Example: Front LH tire pressure receiver OK/NG judgment when DTC "C1750" is detected.
With CONSULT
- Exchange the positions of the front LH tire pressure receiver and the front RH tire pressure receiver.
- Perform "DTC CONFIRMATION PROCEDURE" again. Refer to DTC Logic .
Is DTC "C1751" detected?
YES
Replace the exchanged front RH tire pressure receiver.
NO
Check the low tire pressure warning control unit circuit. Refer to Diagnosis Procedure .