These are code references, not a list of confirmed faults on every vehicle. Read the source and applicability notes, then match the exact vehicle, year, engine and scan report.

Hybrid hood switch faults arise when the two signals agree

Torque Management Request Input Signal B Low

Torque Management Request Input Signal B High

Throttle/Fuel Inhibit A Circuit

Throttle/Fuel Inhibit A Circuit Range/Performance

Throttle/Fuel Inhibit A Circuit Low

Throttle/Fuel Inhibit A Circuit High

a coolant-level label can lead to the N493 temperature-control circuit

Engine Coolant Level Sensor/Switch Circuit Range/Performance

Engine Coolant Level Sensor/Switch Circuit Low

Engine Coolant Level Sensor/Switch Circuit High

PTO Speed Selector Sensor/Switch 2 Circuit/Open

PTO Speed Selector Sensor/Switch 2 Range/Performance

PTO Speed Selector Sensor/Switch 2 Circuit Low

PTO Speed Selector Sensor/Switch 2 Circuit High

PTO Speed Selector Sensor/Switch 2 Circuit Intermittent/Erratic

A/C Request A Circuit Range/Performance

Ford low-coolant check inferred from oil and coolant temperatures

A/C Control Module Requested MIL Illumination

Sportage turbo actuator feedback: temperature-dependent adjustment and reflash

Turbo vane position differs from the commanded target

turbo VGT SENT position input below its electrical range

turbo VGT SENT position input above its electrical range

Turbocharger Boost Control Position Sensor A Circuit Intermittent

Direct Ozone Reduction Catalyst Temperature Sensor Circuit

G611 radiator identification is more than temperature feedback

Direct Ozone Reduction Catalyst Temperature Sensor Circuit Low

Engine Idle Speed Selector Sensor/Switch Circuit/Open

Engine Idle Speed Selector Sensor/Switch Range/Performance

Engine Idle Speed Selector Sensor/Switch Circuit Low

Engine Idle Speed Selector Sensor/Switch Circuit High

Engine Idle Speed Selector Sensor/Switch Circuit Intermittent/Erratic

A/C Request B Circuit Range/Performance

Direct Ozone Reduction Catalyst Temperature Sensor Circuit High

Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit High

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Intermittent/Erratic

Direct Ozone Reduction Catalyst Efficiency Below Threshold

Supercharger clutch command and rotation disagree

Turbo-speed plausibility is a difference test, not overspeed

Vacuum Reservoir Control Circuit/Open

Vacuum Reservoir Control Circuit Low

Vacuum Reservoir Control Circuit High

Hood-switch signal falls into an invalid intermediate range

Hood-switch signal is below the configured lower limit

Hood-switch input exceeds its configured electrical range

A turbo-speed input stuck low must also lack pulse progress

What a high turbo-speed line means when pulses stop changing

Turbocharger/Supercharger Speed Sensor A Circuit Intermittent

Cruise Control Front Distance Range Sensor Single Sensor or Center

Fuel Additive Control Module Requested MIL Illumination

Fuel Additive Control Module Warning Lamp Request

Turbocharger Boost Control Position Sensor B Circuit

Turbocharger Boost Control Position Sensor B Circuit Range/Performance

Turbocharger Boost Control Position Sensor B Circuit Low

Turbocharger Boost Control Position Sensor B Circuit High

Open brake-vacuum pump control circuit in a limited GM application

Ram eTorque vacuum-pump performance and calibration

Low vacuum-pump control circuit is a driver-state finding

High vacuum-pump control circuit does not prove excess vacuum

PTO Enable Switch Performance

Torque Management Request Output Signal

Turbocharger Boost Control Position Sensor B Circuit Intermittent/Erratic

Cruise Control Front Distance Range Sensor Left

Cruise Control Front Distance Range Sensor Right

Turbocharger Speed Sensor B Circuit

A turbo-speed plausibility mismatch with a bank-label caveat

Bank-two turbo-speed low requires an unchanging pulse signal

Separating a static high turbo-speed input from valid pulses

Turbocharger Speed Sensor B Circuit Intermittent

Turbo position remains low relative to its command

turbo vanes fail to return to their default open position

Turbocharger Boost Control Position Sensor B Performance - Stuck Low

Turbocharger Boost Control Position Sensor B Performance - Stuck High

Excessive Time To Enter Closed Loop Turbocharger A Boost Control

Excessive Time To Enter Closed Loop Turbocharger B Boost Control

A low boost-control limit uses a large sustained pressure error