Symptom Table
LOW TIRE PRESSURE WARNING LAMP SYMPTOM CHART
Diagnosis items | Symptom (Power switch ON) | Low tire pressure warning lamp | Cause | Action |
Low tire pressure warning lamp | The low tire pressure warning lamp illuminates for 1 second, then turns OFF. | ![]() |
Wake-up operation for all tire pressure sensors at wheels is completed. | No system malfunctions |
The low tire pressure warning lamp repeats blinking ON for 2 seconds and OFF for 0.2 seconds. | ![]() |
Wake-up operation for all tire pressure sensors at wheels is not completed. | Perform the ID registration for all tire pressure sensors at wheels. Refer to WT-21, "Work Procedure". | |
The low tire pressure warning lamp blinks once. | ![]() |
The front left tire pressure sensor is not activated. | Perform the ID registration for the tire pressure sensor at front left wheel. Refer to WT-21, "Work Procedure". | |
The low tire pressure warning lamp repeats blinking twice. | ![]() |
The front right tire pressure sensor is not activated. | Perform the ID registration for the tire pressure sensor at front right wheel. Refer to WT-21, "Work Procedure". | |
The low tire pressure warning lamp repeats blinking for 3 times. | ![]() |
The rear right tire pressure sensor is not activated | Perform the ID registration for the tire pressure sensor at rear right wheel. Refer to WT-21, "Work Procedure". | |
The low tire pressure warning lamp repeats blinking for 4 times. | ![]() |
The rear left tire pressure sensor is not activated. | Perform the ID registration for the tire pressure sensor at rear left wheel. Refer to WT-21, "Work Procedure". | |
The low tire pressure warning lamp turns ON and stays illuminated. | ![]() |
Low tire pressure | Check the tire pressure for all wheels and adjust to the specified value. Refer to WT-65, "Tire Air Pressure". | |
The low tire pressure warning lamp repeats blinking at 0.5-second intervals for 1 minute, and then stays illuminated. | ![]() |
The combination meter fuse is open or removed (or pulled out). | Check and install the combination meter fuse. If necessary, replace the fuse. | |
The BCM harness connector is removed. | Check the connection conditions of the BCM harness connector, and repair if necessary. | |||
Tire Pressure Monitoring System (TPMS) malfunction. |
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NOTE: If tire pressure sensor wake-up operation is not completed for two or more tire pressure sensors, the applicable low tire pressure warning lamp blinking patterns are displayed continuously.
(Example: Blinks once/OFF/blinks 3 times = Wake-up operation is not completed at the front left wheel and rear right wheel tire pressure sensors.)
U1001 CAN comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each co ...
Unit disassembly and assembly
FRONT COMBINATION LAMP
Exploded View
Front combination lamp
Parking (side marker) lamp bulb socket
Headlamp (low beam) bulb
Plastic cover
Headlamp (high beam) bulb
Turn signal lamp bulb socket
Disassembly and Assembly
DISASSEMBLY
Remove front combinat ...
Basic inspection
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the
condition and the environment when
the incident/malfunction occurs).
Check operation condition of the ...