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AutoCodes - Generic - B287A

B287A Code - Tire Pressure System Fault

- Code Popularity: 1,058 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B287A?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Low tire pressure
  • Tire pressure sensor is missing or damaged
  • Spare tire is installed as a road wheel
  • Incorrect tire pressure sensor is installed
  • Tire pressure sensor installed incorrectly
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How to Fix the DTC B287A?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

When the tire pressure warning light comes on solid and message center displays LOW TIRE PRESSURE, check the air pressure of all tires and adjust to the specified cold pressure listed on vehicle certification label (found on drivers door or door pillar). Drive the vehicle at 20 mph (32 km/h) for at least 2 minutes. If the vehicle has been stationary for more than 30 minutes, a TPM sensor Activation procedure may be needed. When the tire pressure warning light flashes for 70 seconds and then remains illuminated, after bulb-check has been performed and message center displays warning messages, there is a malfunction in the TPM system.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B287A code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Tire Pressure Monitor System (TPMS) Warning Light ON

Code B287A Description

The Tire Pressure Monitor (TPM) system monitors the air pressure in the 4 road tires with wheel-mounted tire pressure sensors. The sensors transmit radio frequency signals to the Smart Junction Box (SJB) approximately every 60 seconds when the vehicle speed exceeds 20 mph (32 km/h). If vehicle is stationary for more than 30 minutes, the sensor will enter into a sleep mode and stop transmitting.
Each tire pressure sensor transmission is compared against a low-pressure limit (pressure listed on vehicle certification label minus 25 percent, which will be about 6-9 psi). If it is determined that the tire pressure has fallen below this limit, the SJB sends a message to the instrument cluster, which then illuminates the low pressure warning indicator and displays the appropriate message(s) in the message center (if equipped).

OBDII Code B287A - Tire Pressure System Fault - AutoCodes.com
B287A Code - Tire Pressure System Fault

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