Chevrolet Cobalt Service & Repair Manual: Description
Chevrolet Cobalt Service & Repair Manual / Technical Service Bulletins / Description
| The TPMS (Tire Pressure Monitor System) warns the driver when a significant loss or gain of tire pressure occurs in any of the four tires, and allows the driver to display the individual tire pressures and the locations on the DIC (Driver Information Center) display. The system uses the BCM (Body Control Module), DIC, instrument panel cluster, RCDLR (Remote Control Door Lock Receiver), a RF (Radio Frequency) transmitting tire pressure sensor in each wheel and the serial data circuit. Each tire pressure sensor has an internal power supply with service life of 10 years. |
| When the vehicle is stationary, the sensor is inactive. When the vehicle is operated and as the vehicle speed increases, centrifugal force activates the sensors internal accelerometer causing the sensors to go into rolling mode. In the rolling mode, the sensors read tire pressure once every 30 seconds and transmit the reading once every 60 seconds. The remote control door lock receiver, receives and translates the data transmitted by the sensors into sensor presence, sensor mode, and tire pressure. The remote control door lock receiver sends the tire pressure and tire location data to the DIC where the readings can be displayed. The sensors continuously compare the last pressure reading to the current pressure reading and will transmit if a 1.2 psi change in tire pressure has been detected in either a stationary or rolling mode. When the TPMS detects a significant loss or gain in tire pressure, the "Check Tire Pressure" message is displayed on the DIC display and the low tire pressure indicator is illuminated. The remote control door lock receiver can detect faults in the TPMS. Any fault detected will cause the DIC to display the "Service Tire Monitor" message. |
Component Replacement
Tire Pressure Indicator Sensor
Each tire pressure sensor has
an internal power supply that has a service life of 10 years.
Removal
1.
Loosen lug nuts.
...
Diagnosis & Testing
Accessing Diagnostic Trouble Codes
Connect a suitably programmed
scan tool to Data Link Connector (DLC) and follow manufacturers instructions.
Diagnostic Tests
Low tire press ...
See also:
Chevrolet Cobalt Owners Manual. Safety Warnings and Symbols
Warning messages found on vehicle labels and in this
manual describe hazards and what to do to avoid or
reduce them.
Danger indicates a hazard with a high level of risk
which will result in serious injury or death.
Warning or Caution indicates a hazard that could result
in injury or death.
WA ...
Chevrolet Cobalt Owners Manual
- In Brief
- Seats and Restraint System
- Features and Controls
- Instrument Panel
- Driving Your Vehicle
- Service and Appearance Care
- Maintenance Schedule
- Customer Assistance Information
Chevrolet Cobalt Service Manual
- Air Bags
- Air Conditioning & Heater
- Body & Frame
- Brakes
- Cooling System
- Driveline
- Electrical
- Electronic Stability Controls
- Engine Service
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