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 DATA MONITOR
With CONSULT
- Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
- Stop the vehicle.
- Select "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR" and "AIR PRESS RL" in "Data Monitor" of "AIR PRESSURE MONITOR".
- Within 5 minutes after vehicle is stopped, read the values displayed on CONSULT.
Are all tire pressures displayed 0 kPa (psi)?
YES
GO TO 2.
NO
GO TO 8.
- CHECK RECEIVER POWER CIRCUIT CONTINUITY
- Turn the ignition switch OFF.
- Disconnect low tire pressure warning control unit and tire pressure receiver connectors.
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M90
10
E43 (Front LH)
1
Yes
9
E60 (Front RH)
8
C109 (Rear LH)
7
C110 (Rear RH)
- Check continuity between low tire pressure warning control unit connector and ground.
Low tire pressure warning control unit
--
Continuity
Connector
Terminal
M90
10
Ground
No
9
8
7
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace the malfunctioning harness or connector.
- CHECK RECEIVER SIGNAL CIRCUIT
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M90
6
E43 (Front LH)
3
Yes
5
E60 (Front RH)
4
C109 (Rear LH)
3
C110 (Rear RH)
- Check the continuity between low tire pressure warning control unit connector and ground.
Low tire pressure warning control unit
--
Continuity
Connector
Terminal
M90
6
Ground
No
5
4
3
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace the malfunctioning harness or connector.
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
- CHECK RECEIVER SIGNAL SENSITIVITY CIRCUIT
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
Low tire pressure warning control unit
Tire pressure receiver
Continuity
Connector
Terminal
Connector
Terminal
M90
22
E43 (Front LH)
2
Yes
21
E60 (Front RH)
20
C109 (Rear LH)
19
C110 (Rear RH)
- Check the continuity between low tire pressure warning control unit harness connector and ground.
Low tire pressure warning control unit
--
Continuity
Connector
Terminal
M90
22
Ground
No
21
20
19
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace the malfunctioning harness or connector.
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
- CHECK RECEIVER GROUND CIRCUIT
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
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)
- Check the continuity between low tire pressure warning control unit harness connector and ground.
Low tire pressure warning control unit
--
Continuity
Connector
Terminal
M90
26
Ground
No
25
24
23
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace the malfunctioning harness or connector.
- Check continuity between low tire pressure warning control unit connector and tire pressure receiver connectors.
- CHECK TIRE PRESSURE RECEIVER POWER SUPPLY CIRCUIT
- Connect low tire pressure warning control unit harness connector.
- Turn the 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 7.
NO
Replace the low tire pressure warning control unit. Refer to Removal and Installation .
- TIRE PRESSURE RECEIVER SIGNAL
Check tire pressure receiver signal. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 8.
NO
Repair or replace malfunctioning components.
- TIRE PRESSURE SENSOR ID REGISTRATION
Perform tire pressure sensor ID registration. Refer to Work Procedure .
Is tire pressure sensor ID registration completed?
YES
GO TO 9.
NO
Replace applicable tire pressure sensor. Refer to Removal and Installation .
- CHECK TIRE PRESSURE SIGNAL
With CONSULT
- Drive for 3 minutes at a speed of 40 km/h (25 MPH) or more, then drive normally for 10 minutes.
- Stop the vehicle.
- Select "AIR PRESS FL", "AIR PRESS FR", "AIR PRESS RR" and "AIR PRESS RL" in "Data Monitor" of "AIR PRESSURE MONITOR".
- Within 5 minutes after vehicle stopped, check that the tire pressures are within specification. Refer to Tire
.
Monitor item
Displayed value
AIR PRESS FL
Approximately equal to the indication on tire gauge value for front LH tire
AIR PRESS FR
Approximately equal to the indication on tire gauge value for front RH tire
AIR PRESS RR
Approximately equal to the indication on tire gauge value for rear RH tire
AIR PRESS RL
Approximately equal to the indication on tire gauge value for rear LH tire
Is the inspection result normal?
YES
Inspection End.
NO
Replace the low tire pressure warning control unit. Refer to Removal and Installation .