P CODE FAMILY

Powertrain code references — Page 80.

Engine, transmission and powertrain diagnostic references. Exact vehicle and module context still matters.

Generic OBD-II

P267B

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.

B Rocker Arm Actuator Position Sensor Circuit Range/Performance Bank 2

B Rocker Arm Actuator Position Sensor Circuit Low Bank 2

B Rocker Arm Actuator Position Sensor Circuit High Bank 2

B Rocker Arm Actuator Position Sensor Circuit Intermittent/Erratic Bank 2

Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic

Coolant Degassing Valve Control Circuit High

Coolant bypass valve open-load detection is an electrical finding

Coolant bypass control low means a reported short to ground

Coolant bypass actuator high is a short-to-power classification

Supply C open-load is tested through HSO7 at powerdown

Supply C low can arise from voltage collapse or excess current

Supply C high is checked after HSO7 is switched off

fuel-filter heater open-circuit detection uses off-state feedback

fuel-filter heater feedback indicates the short-to-ground branch

fuel-heater feedback remains high during an on command

injector calibration data fails its programming-integrity check

High Pressure Fuel Pump Calibration Not Learned/Programmed

cylinder 1 injector adjustment data has not been programmed

cylinder 2 injector adjustment record is missing

cylinder 3 injector adjustment data is unprogrammed

cylinder 4 injector adjustment code has not been stored

cylinder 5 injector adjustment data is absent

cylinder 6 injector adjustment record has not been programmed

Cylinder-seven injector data is missing or fails validation

Cylinder-eight injector coding needs a valid individual record

Cylinder 9 Injector Data Incompatible

Cylinder 10 Injector Data Incompatible

Injector data fault recorded as repeated internal-memory write errors

Exhaust Aftertreatment Fuel Injector A Circuit/Open

Downstream injection leakage can be inferred from temperature or oxygen

Exhaust Aftertreatment Fuel Injector A Circuit Low

Exhaust Aftertreatment Fuel Injector A Circuit High

Exhaust Aftertreatment Glow Plug Control Circuit/Open

Exhaust Aftertreatment Glow Plug Control Performance

Exhaust Aftertreatment Glow Plug Control Circuit Low

Exhaust Aftertreatment Glow Plug Control Circuit High

Exhaust Aftertreatment Glow Plug Circuit/Open

Exhaust Aftertreatment Glow Plug Performance

Exhaust Aftertreatment Glow Plug Circuit Low

Exhaust Aftertreatment Glow Plug Circuit High

Ram coolant-valve performance fault: ground test before contamination repair

Engine Coolant Bypass Valve A Position Sensor Circuit

bypass-valve feedback falls into an unexpected position band

coolant-bypass valve feedback is below its electrical range

high valve feedback is not proof of a fully open bypass

Engine Coolant Bypass Valve A Position Sensor Circuit Intermittent/Erratic

a failed coolant-bypass endpoint learn needs its fault context

Engine Coolant Bypass Valve A Position Sensor Maximum Stop Performance

Early 2013 Ram coolant-bypass warning with a PCM calibration remedy

The B bypass valve controls transmission cooling in this Ford example

Coolant bypass-valve drive 2 reads low during a high command

A high transmission-cooling valve circuit is a short-to-battery classification

Engine Coolant Bypass Valve B Stuck/Open

Engine Coolant Bypass Valve B Range/Performance

Engine Coolant Bypass Valve A Stuck Closed

Engine Coolant Bypass Valve B Stuck Closed

Fuel Shutoff Valve A Control Circuit Performance/Stuck Off

Fuel Shutoff Valve A Control Circuit Stuck On

Fuel Shutoff Valve B Control Circuit Performance/Stuck Off

Fuel Shutoff Valve B Control Circuit Stuck On

coolant bypass valve C motor-control circuit is open

coolant bypass valve C driver reports a ground short

coolant bypass valve C driver reports a power short

Engine Coolant Bypass Valve C Stuck/Open

coolant bypass valve C cannot follow its position target

Engine Coolant Bypass Valve C Stuck Closed

Cabin-heating valve D has its own output-circuit monitor

Engine Coolant Bypass Valve D Control Circuit Low

A cabin-heating valve high-circuit result needs electrical localization

A coolant valve is classified open only after target error is established

Engine Coolant Bypass Valve D Range/Performance

Low-side coolant-valve position must also miss its target

Internal range supervision preserves A, B and correlation distinctions

Clutch-pedal supervision can identify a channel or a disagreement

An exhaust-valve open report is different from a stuck-valve result

A low exhaust-valve circuit report must retain the bank1 identity

A high exhaust-valve circuit is separate from a stuck position

a received warning request points to another controller’s findings

Chassis Control Module 2 Requested MIL Illumination

Engine Coolant Pump Control Circuit/Open