P2017
Intake Manifold Runner Position Sensor/Switch Circuit High (Bank 1)
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The P2017 code means the powertrain control module (PCM) has detected an abnormally high voltage signal from the intake manifold runner position sensor on bank 1. This is a circuit-level code that specifically indicates the sensor signal is higher than the PCM expects, which typically points to an electrical issue rather than a mechanical problem with the runner flaps themselves.
A high-circuit condition usually means there's an open circuit somewhere in the sensor's signal wiring — when the signal wire is disconnected or broken, the voltage tends to float up toward the 5-volt reference voltage. This can be caused by a corroded connector, damaged wiring, or a failed sensor with an internal open circuit.
Most drivers won't notice any difference in how the vehicle drives when this code is present. The check engine light will be the primary symptom. Start your diagnosis by carefully inspecting the connector and wiring at the IMRC position sensor. Look for corrosion, loose pins, or damaged insulation. A simple connector cleaning or wiring repair often resolves this code without needing to replace any major components.
Severity
Symptoms
- •Check engine light illuminated
- •Little to no noticeable driving difference in most cases
- •Possible slight reduction in engine performance
- •Minor decrease in fuel economy
- •Occasional rough idle
Likely Causes
The most common cause of a high-circuit reading is an open or high-resistance connection in the IMRC position sensor wiring. Corroded pins, damaged wire insulation, or a disconnected connector can cause the signal voltage to float high.
The position sensor itself can develop an internal open circuit or reference voltage fault that causes its output signal to read at or near the reference voltage, which the PCM interprets as a high circuit condition.
Severe carbon buildup can hold the runner flaps in a position that causes the sensor to output a voltage at the high end of its range, which the PCM flags as exceeding the expected maximum.
If the actuator fails in a way that holds the runner flaps at full travel, the position sensor will consistently report a high-end reading that the PCM determines is out of normal range.
Estimated Cost
Professional Repair
Includes parts + labor
Common Fixes
- Inspect and repair wiring and connectors at the position sensor
- Replace the intake manifold runner position sensor
- Clean carbon buildup from runner flaps and pivot points
- Replace the IMRC actuator if mechanically failed
Shop Parts
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MR. DIAGNOSTECH