P247C — Exhaust gas temperature out of range — bank 2, sensor 1

The reported exhaust-gas temperature is outside the expected calibrated range at the named position. Unlike electrical input-high or input-low faults, this is a temperature reading plausibility condition. Check the operating conditions and related readings before concluding whether actual heat or measurement is responsible. This code refers to bank 2, sensor 1; exact physical location and thresholds vary by vehicle.

Affected system: Exhaust gas temperature monitoring

Symptoms

• Warning light may illuminate
• Related system function may be impaired
• Vehicle-specific symptoms vary

Possible causes

• Exhaust or emissions plumbing leak, restriction, valve fault, sensor fault, or damaged wiring
• Related wiring, connector, power or ground fault
• Vehicle-specific mechanical or control issue

What to check

• Record stored and pending codes and freeze-frame data
• Inspect the relevant exhaust or emissions plumbing and electrical connections, then compare commanded operation with sensor feedback during the enable conditions.
• Confirm measured values against the vehicle service information
• Retest under the conditions that set the code
• Inspect the relevant exhaust or emissions plumbing and electrical connections, then compare commanded operation with sensor feedback during the enable conditions.
• Repair the verified cause and confirm the code does not return

Also written as: P247C-00, P247C00 (some scan tools add the fault-type byte, e.g. -00).