Transmission Range Sensor B Circuit High

Where it lives

For P2803, the sensor sits on the circuit this code reports. The description of P2803 reports a fault at the sensor.

Check these first

• A short to voltage on the transmission range sensor B circuit
• A chafed range sensor B wire touching power
• A failed transmission range sensor B
• Water in the transmission range sensor B connector
• A powertrain control module reading range B high

What to do next

1. Read transmission range sensor B voltage on a scan tool
2. Inspect the range sensor B wiring for chafing against power
3. Check the range sensor B connector for water intrusion
4. Disconnect range sensor B and recheck circuit voltage
5. Replace transmission range sensor B if voltage stays high
6. Clear the code and retest

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