NO.1 TPMS WARNING LIGHT ILLUMINATES CONTINUOUSLY [DIRECT TIRE PRESSURE MONITORING SYSTEM (TPMS)]
id020305800500
1 |
TPMS warning light illuminates continuously |
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POSSIBLE CAUSE
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• Tire pressure is lower than the specification. (Such as loss of air pressure due to puncture.)
• TPMS warning light circuit malfunction in the instrument cluster.
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Diagnostic Procedure
STEP |
INSPECTION |
ACTION |
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1
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INSPECT TIRE
• Inspect the tires.
• Is there any foreign object adhering to the tire?
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Yes
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Remove the any foreign object.
Replace the tire if necessary, then go to the next step.
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No
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Go to the next step.
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2
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MEASURE TIRE PRESSURE
• Measure the tire pressure when the tires are cold.
• Is the tire pressure lower than the specification?
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Yes
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Adjust the tire pressure to the specification when the tires are cold, then go to the next step.
(See TIRE PRESSURE ADJUSTMENT.)
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No
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Go to the next step.
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3
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VERIFY TPMS WARNING LIGHT
• Verify the TPMS warning light.
• Does the TPMS warning light turn off?
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Yes
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Symptom troubleshooting completed.
Explain to the customer what has been repaired.
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No
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Go to the next step.
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4
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VERIFY TPMS WARNING LIGHT AFTER DRIVING THE VEHICLE
• Drive the vehicle at speed of 25 km/h {16 mph} or more for 10 min or more.
• Verify the TPMS warning light.
• Does the TPMS warning light turn off?
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Yes
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Symptom troubleshooting completed.
Explain to the customer what has been repaired.
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No
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Go to the next step.
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5
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INSPECT FOR DTCS IN INSTRUMENT CLUSTER
• Connect the M-MDS to DLC-2.
• Retrieve the instrument cluster DTC.
• Is the DTC displayed?
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Yes
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Go to applicable DTC troubleshooting procedure.
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No
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Malfunction is in the TPMS warning light illumination control circuit in the instrument cluster.
Replace the instrument cluster.
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