DOCUMENTED DIAGNOSTIC CONTEXT

Diagnostic code articles — Page 34.

Understand what the recorded fault means, which findings change the diagnosis, and what the cited documentation can confirm. Each article states the system or vehicle scope it covers.

Some sources leave details unresolved. Those articles include a visible source note; a code match alone does not establish applicability to your vehicle.

Cylinder-seven injector data is missing or fails validation

Cylinder-eight injector coding needs a valid individual record

Injector data fault recorded as repeated internal-memory write errors

Downstream injection leakage can be inferred from temperature or oxygen

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

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

a failed coolant-bypass endpoint learn needs its fault context

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

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

coolant bypass valve C cannot follow its position target

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

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

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

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

Pump overspeed is a filtered mismatch, not proof of trapped air

Starter pinion-relay open circuit is checked with power commanded on

Low pinion-relay feedback uses its own starting-voltage boundary

An off-state starter-relay signal remains powered

Supply D open-load may be discovered only when shutting down

Supply D circuit low includes a high-current failure branch

Supply D high describes an HSO8 shutdown-state failure

Pump B internal-error feedback is not lost communication

Coolant pump C exceeds an absolute speed limit

EGR bypass stuck closed: restricted vacuum supply versus valve damage

Exhaust-valve performance includes position and reported-state evidence

Ford 5R110W coast clutch fails its functional check

Ford 10R80 clutch leakage requires a measured diagnosis

Ford 5R110W intermediate clutch functional failure

Ford 5R110W direct clutch on/off performance fault

Ford 5R110W low/reverse clutch functional fault

the Jeep multi-select solenoid continuity check

Solenoid F failed-off monitoring evaluates response history

A functionally failed-on F result is judged against the requested state

The F electrical code has architecture-dependent detail in Ford’s tables

The Ford F-channel tables disagree on the displayed failure mapping

DSG gear disengagement needs speed and fault-subtype evidence

CW6A-EL hydraulic support during i-stop

Electronic pressure-control valve 4 in the BMW transmission

CVT forward-clutch pressure control fails hydraulically off

GR10 clutch C4 retains hydraulic holding pressure when released

solenoid D electrical diagnosis accumulates current-tracking error

Solenoid D control circuit has an open electrical path

solenoid D performance is checked during a stable current command

Solenoid D control circuit indicates a ground short

Solenoid D control circuit detects a short to voltage

CVT torque-converter clutch does not achieve its requested coupling

CVT torque-converter clutch remains coupled when release is expected

solenoid E feedback error is accumulated and reset conditionally

Solenoid E circuit is electrically open in the selected transmission

Solenoid performance includes current, switching frequency and duty agreement

Solenoid E control circuit has a ground-short signature

Solenoid E control circuit reports unwanted voltage

A clutch fails to release despite an electrically functional solenoid

GR10 clutch C6 slips despite its commanded application

GR10 clutch C6 fails to release during a shift

solenoid F diagnosis uses cumulative command-versus-feedback error

A clutch-lubrication valve fault uses repeated current-profile checks

Solenoid F has an open circuit, with function determined by transmission type

CVT binary-pump control fails its two-mode pressure comparison

Solenoid F electrical path indicates a short to ground

Solenoid F circuit-high diagnosis needs care with conflicting source columns

Two different checks can flag the cooler-out temperature signal

Cooler-out temperature circuit low is a voltage-window fault

A high cooler-temperature circuit does not prove hot fluid

Intermediate-speed B circuitry requires the correct sensor architecture

Clutch-two speed plausibility needs pressure and slip context

Intermediate-speed B intermittency is distinct from its noise and dropout checks