DAF fault codes linked to OEM numbers and defect symptoms.

Exhaust valve / back pressure control range issue

Turbo / VGT control circuit open or inactive

Turbo / VGT control range or performance issue

Turbocharger overspeed or control limit issue

Pressure correlation issue, often checked with BPV/exhaust pressure faults

Cylinder 1 injector or pump-unit control circuit

Cylinder 2 injector or pump-unit control circuit

Cylinder 4 injector or pump-unit control circuit

Overboost condition or stuck wastegate / control problem

Bypass / wastegate solenoid control circuit

Bypass / wastegate solenoid low or short-to-ground report

Bypass / wastegate solenoid high or short-to-supply report

Cylinder 1 pump/injector control circuit low

Cylinder 1 pump/injector control circuit high

Cylinder 1 contribution / balance issue

Cylinder 2 pump/injector control circuit low

Cylinder 2 pump/injector control circuit high

Cylinder 2 contribution / balance issue

Cylinder 4 pump/injector control circuit low

Cylinder 4 pump/injector control circuit high

Cylinder 4 contribution / balance issue

Underboost or boost pressure lower than commanded

EGR flow malfunction

EGR flow too low / insufficient

EGR flow too high / excessive

EGR control circuit issue

EGR position or range/performance issue

Exhaust pressure sensor / pressure-control signal low

Exhaust pressure sensor / pressure-control signal high

EGR throttle / flow-control circuit range issue

EGR throttle / flow-control performance issue

BPV actuator cannot reach commanded position in report data

BPV internal actuator error in report data

BPV actuator tracking or control issue in report data

BPV control or end-stop issue in report data

BPV control or end-stop issue in report data

BPV actuator tracking or control issue in report data

Reported with this component family; confirm with DAF diagnostics and live data.

Cylinder 1 pump-unit contribution / control report

Cylinder 2 pump-unit contribution / control report

Cylinder 4 pump-unit contribution / control report

Cylinder 2 pump-unit report code

Cylinder 4 pump-unit report code

EGR rate / EGR control report code

EGR control / plausibility report code

EGR bypass / cooler bypass plausibility report code

EGR cooler bypass or aftertreatment support report code

EGR cooler bypass report code

EGR cooler bypass actuator report code

EGR position or control report code

EGR control report code

EGR actuation / position report code

EGR actuation / position report code

EGR position sensor report code

EGR position or actuator report code

EGR position or actuator report code

Engine protection / EGR or BPV control report code

Coolant/EGR-related report code in supplied data

Coolant/EGR-related report code in supplied data

Injector/pump-unit group supply low or short report

Injector/pump-unit group supply high or short report

Injector/pump-unit group supply low or short report

Injector/pump-unit group supply high or short report

Turbocharger boost control position sensor circuit

Turbocharger boost control position sensor range/performance

Turbo actuator / speed or control limit report

Turbo speed sensor or control report

Turbo speed sensor or control report

Cylinder 1 engine-brake solenoid control circuit/open report

Cylinder 1 engine-brake solenoid performance report

Cylinder 1 engine-brake solenoid short-to-ground report

Cylinder 1 engine-brake solenoid electrical report

Cylinder 3 engine-brake solenoid control circuit/open report

Cylinder 3 engine-brake solenoid performance report

Cylinder 3 engine-brake solenoid short-to-ground report

Cylinder 3 engine-brake solenoid electrical report

Cylinder 4 engine-brake solenoid control circuit/open report

Cylinder 4 engine-brake solenoid performance report

Cylinder 4 engine-brake solenoid short-to-ground report

Cylinder 4 engine-brake solenoid electrical report

Cylinder 4 engine-brake solenoid control circuit/open report

Cylinder 4 engine-brake solenoid short-to-ground report

Cylinder 4 engine-brake solenoid electrical report

BPV communication / actuation report code

VGT actuator communication or network report

BPV communication / E-CAN report code