MANUFACTURER REFERENCE

Generic OBD-II code references — Page 69.

Read the source definition and confirm the exact vehicle, reporting module and diagnostic procedure.

Generic OBD-II

P2A94

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.

Alternative Fuel Tank Select Valve A Control Circuit High

Alternative Fuel Tank Select Valve B Control Circuit/Open

Alternative Fuel Tank Select Valve B Control Circuit Performance

Alternative Fuel Tank Select Valve B Control Circuit Low

Alternative Fuel Tank Select Valve B Control Circuit High

Alternative Fuel Tank Select Valve C Control Circuit/Open

Alternative Fuel Tank Select Valve C Control Circuit Performance

Alternative Fuel Tank Select Valve C Control Circuit Low

Alternative Fuel Tank Select Valve C Control Circuit High

Alternative Fuel High Pressure System Small Leak

Alternative Fuel Return Line Valve Control Circuit/Open

Alternative Fuel Return Line Valve Control Circuit Range/Performance

Alternative Fuel Return Line Valve Control Circuit Low

Alternative Fuel Return Line Valve Control Circuit High

Alternative Fuel Return Line Insufficient Flow

Cold Start EGR B Flow Insufficient Detected

Cold Start EGR B Flow Excessive Detected

EGR bypass overtemperature refers to the motor-driver stage

EGR Cooler Bypass Control Circuit Driver Current/Temperature Too High Bank 2

Engine Coolant Bypass Valve B Position Sensor Circuit

Engine Coolant Bypass Valve B Position Sensor Circuit Range/Performance

Engine Coolant Bypass Valve B Position Sensor Circuit Low

Engine Coolant Bypass Valve B Position Sensor Circuit High

Engine Coolant Bypass Valve B Position Sensor Circuit Intermittent/Erratic

Diesel Fuel Presence Sensor Circuit

Diesel Fuel Presence Sensor Circuit Range/Performance

Diesel Fuel Presence Sensor Circuit Low

Diesel Fuel Presence Sensor Circuit High

particulate sensor internal current-range checking

Catalyst Heater Control Module Performance

Catalyst Heater Control Module Supply Voltage

Cold Start Intake Manifold Runner Control Stuck Open Bank 1

Cold Start Intake Manifold Runner Control Stuck Open Bank 2

Cold Start Intake Manifold Runner Control Stuck Closed Bank 1

Cold Start Intake Manifold Runner Control Stuck Closed Bank 2

EcoBoost wastegate faults and the separately serviced actuator kit

The low-range wastegate position report for bank 1

Bank 1 wastegate position in the high diagnostic range

F-150 2.7L wastegate faults and a historical no-symptom case

Low-range feedback from the second wastegate channel

Bank 2 wastegate feedback reported above its accepted range

Wastegate bank 1 driver protection from current or heat

Current and temperature faults in the bank 2 wastegate driver

Intake Air O2 Sensor Reference Voltage Circuit/Open Bank 1

Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 1

Intake Air O2 Sensor Reference Voltage Circuit Low Bank 1

Intake Air O2 Sensor Reference Voltage Circuit High Bank 1

Intake Air O2 Sensor Reference Voltage Circuit/Open Bank 2

Intake Air O2 Sensor Reference Voltage Circuit Range/Performance Bank 2

Intake Air O2 Sensor Reference Voltage Circuit Low Bank 2

Intake Air O2 Sensor Reference Voltage Circuit High Bank 2

Charge Air Cooler Coolant Temperature Sensor B Circuit

Charge Air Cooler Coolant Temperature Sensor B Circuit Range/Performance

Charge Air Cooler Coolant Temperature Sensor B Circuit Low

Charge Air Cooler Coolant Temperature Sensor B Circuit High

Charge Air Cooler Coolant Temperature Sensor B Intermittent/Erratic

Reductant Temperature Sensor B Circuit

Reductant Temperature Sensor B Circuit Range/Performance

Reductant Temperature Sensor B Circuit Low

Reductant Temperature Sensor B Circuit High

Reductant Temperature Sensor B Circuit Intermittent

Throttle/Pedal Position Sensor/Switch C/G Voltage Correlation

Throttle/Pedal Position Sensor/Switch B/G Voltage Correlation

Throttle/Pedal Position Sensor/Switch A/G Voltage Correlation

Intermediate System Voltage Low

Intermediate System Voltage High

Reductant Pump Motor Position Sensor Circuit

Reductant Pump Motor Position Sensor Circuit Range/Performance

Reductant Pump Motor Position Sensor Circuit Low

Reductant Pump Motor Position Sensor Circuit High

cold-soak comparison of reductant tank temperatures

a smart reductant temperature sensor reports an out-of-range low value

A high temperature report from the smart reductant tank sensor

Erratic reductant temperature measured over a moving window

Reductant Tank Temperature Sensor B Circuit

Intake Air System Leak Bank 2

Intake Air O2 Sensor Pumping Current Trim Circuit Open Bank 1

Intake Air O2 Sensor Pumping Current Trim Circuit Low Bank 1

Intake Air O2 Sensor Pumping Current Trim Circuit High Bank 1

Intake Air O2 Sensor Pumping Current Circuit Open Bank 1