B2300 L4-2.3L (2008)
Low Tire Pressure Indicator: Testing and Inspection
TPMS Indicator and Message Center Messages
The TPMS indicator sometimes displays faults that cannot be resolved by the customer. Treat these messages as TPMS faults that must be repaired.
TPMS Indicator Illuminates Continuously
Note:
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If the spare tire is in use, the damaged road tire must be repaired and installed on the vehicle to restore complete TPMS functionality before
carrying out any diagnosis.
1. The TPMS indicator remains on continuously for the following conditions:
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Low Tire Pressure - The TPMS indicator is illuminated solid. This is displayed when any of the tire pressures are low. When this condition
exists, the tire pressure must be adjusted to the recommended cold pressure as indicated on the vehicle certification label and the table above.
Adjust the air pressure in the tires.
Note:
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The TPMS sensors do not transmit when the vehicle is stationary. If the vehicle has been stationary for more then 30 minutes, it will be
necessary to wake up the sensors so they will transmit the latest tire pressure information to the SJB.
2. If the vehicle has been stationary for more then 30 minutes, perform the following procedure to wake up the TPMS sensors.
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Turn the ignition switch to the ON position.
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Adjust the air pressure in the LF tire.
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Activate the LF TPMS sensor, at least 2 times, using the tire pressure monitor activation tool.
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Repeat Steps 2 and 3 for the remaining tires.
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If the TPMS indicator remains illuminated after adjusting and activating each sensor, GO to SYMPTOM TROUBLESHOOTING CHART -
TIRE PRESSURE MONITORING SYSTEM (TPMS). See: Testing and Inspection/Symptom Related Diagnostic Procedures
TPMS Indicator Flashes
The TPMS indicator flashes 70 seconds and then remains ON solid when the ignition key is turned to the ON position for the following conditions.
1. Tire Pressure Sensor Fault - If equipped, the message center will display "TIRE SENSOR FAULT" when a tire pressure sensor is malfunctioning.
See SYMPTOM TROUBLESHOOTING CHART - TIRE PRESSURE MONITORING SYSTEM (TPMS). See: Testing and Inspection/Symptom
Related Diagnostic Procedures
2. No communication with the SJB (TPMS is integral to the SJB) - The TPMS indicator is illuminated when the instrument cluster has received no
signals from the SJB for more than 5 seconds. If equipped, the message center displays "TIRE MONITOR FAULT". See SYMPTOM
TROUBLESHOOTING CHART - TIRE PRESSURE MONITORING SYSTEM (TPMS). See: Testing and Inspection/Symptom Related
Diagnostic Procedures
3. Tire Pressure Monitor Fault - If equipped, the message center will display "TIRE MONITOR FAULT" when the tire pressure monitoring system
is malfunctioning or communication with the instrument cluster has been lost. See SYMPTOM TROUBLESHOOTING CHART - TIRE
PRESSURE MONITORING SYSTEM (TPMS). See: Testing and Inspection/Symptom Related Diagnostic Procedures
