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.

intake temperature 3 signal resistance is too low

intake temperature 3 signal indicates an open path

intake temperature 3 noise exceeds its change budget

Intake Air Temperature Sensor 3 Circuit Bank 2

Intake Air Temperature Sensor 3 Circuit Range/Performance Bank 2

Intake Air Temperature Sensor 3 Circuit Low Bank 2

Intake Air Temperature Sensor 3 Circuit High Bank 2

Intake Air Temperature Sensor 3 Circuit Intermittent/Erratic Bank 2

Humidity Sensor Circuit/Open

Humidity-sensor performance is checked through its temperature reading

humidity value received over LIN is below range

humidity value reported above its allowed range

humidity signal is too erratic within one-second windows

Barometric Pressure - Turbocharger/Supercharger Inlet Pressure Correlation Bank 2

Turbocharger Outlet Pressure Sensor A Circuit

Turbocharger Outlet Pressure Sensor A Range/Performance

Turbocharger Outlet Pressure Sensor A Circuit Low

Turbocharger Outlet Pressure Sensor A Circuit High

Turbocharger Outlet Pressure Sensor A Intermittent/Erratic

Battery B State of Charge Performance

A restricted EVAP vapor line is evaluated in two stages

Body Control Module Requested MIL Illumination

The MAF circuit threshold is not published in this Ford summary

MAF performance judged through intake-flow models

Continental MAF signal frequency is below range

Continental MAF output frequency is too high

Why a brief MAF dropout can matter more than its average reading

Maxima uses an ambient-pressure sensor for this diagnosis

MAP performance through several intake-flow comparisons

MAP signal voltage falls below its electrical range

MAP circuit-high can indicate a power short or an open

MAP intermittency is an event-count diagnosis

Digital MAF sensor B failure is distinct from lost communication

bank-2 airflow versus a calculated flow envelope

A low MAF result may be a SENT data-range fault

high SENT data from airflow sensor B

Sensor B airflow interruptions need time-resolved evidence

Mass or Volume Air Flow Sensor A/B Correlation

Maxima has electrical and temperature-comparison branches

intake temperature 1 is the cold-soak outlier

LIN-reported intake temperature 1 is implausibly low

LIN-reported intake temperature 1 is above range

intake temperature 1 is noisy despite remaining in range

Altima may display a substitute coolant temperature

coolant temperature is biased against cold-soak references

coolant sensor 1 circuit resistance is too low

coolant sensor 1 high resistance or an open circuit

coolant temperature changes faster than the sensor model permits

Engine Coolant Temperature Sensor 1/2 Correlation

Coolant and intake temperatures after an engine-off period

Charge Air Cooler Temperature/Intake Air Temperature Correlation Bank 1

Charge Air Cooler Temperature/Intake Air Temperature Correlation Bank 2

Engine Coolant Temperature 1 / Ambient Air Temperature Correlation

Engine Coolant Temperature 2 / Ambient Air Temperature Correlation

A SENT throttle sensor can report a fault while still communicating

throttle-position plausibility checked against intake-flow models

throttle-position sensor 1 is below its reference fraction

throttle-position sensor 1 exceeds its voltage range

Short throttle sensor interruptions can use different detection rules

Coolant temperature has not caught up with the closed-loop model

Coolant warm-up judged against a temperature model

why the Titan compares intake and coolant temperature

coolant warms too slowly for the calculated engine energy

Barometric Pressure Too Low

Turbocharger/Supercharger Inlet Pressure Sensor A Circuit

An inlet-pressure signal can fail while staying in range

Low supercharger inlet-pressure signal with deadbands

High inlet-pressure circuit signal is not proof of overboost

Turbocharger/Supercharger Inlet Pressure Sensor A Circuit Intermittent/Erratic

Engine Coolant Temperature / Engine Oil Temperature Correlation

Why an older oxygen circuit code may have several modern equivalents

wide-range oxygen sensor reports a short-to-ground fault

wide-range oxygen-sensor interface detects a high circuit

oxygen-sensor slow response separates delay from transition

No oxygen-sensor activity does not identify one universal electrical fault

What the upstream oxygen-sensor heater current test measures

Rear oxygen activity is judged after several other tests finish

Why a rear oxygen-sensor low signal needs operating context

Understanding a rear oxygen-sensor signal above its limit

A diesel tailpipe oxygen response is timed during fuel shutoff