DOCUMENTED DIAGNOSTIC CONTEXT

Diagnostic code articles — Page 6.

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 3 produces an excessive negative injection correction

cylinder 4 fails positive drift limits in SQP learning

the cylinder 4 SQP result drifts in the advanced direction

cylinder 5 exceeds the positive small-injection drift limit

cylinder 5 shows negative drift in the SQP test

cylinder 6 shows excessive positive small-injection drift

the cylinder 6 SQP calculation shows negative drift

Cylinder 7 timing performance can be learned from rail-pressure changes

Advanced cylinder 7 injection needs quantity and timing evidence

Cylinder 8 retarded-injection evidence depends on a completed learning cycle

Check the signed learning result before diagnosing advanced cylinder 8 injection

Audi's temperature-control sensor circuit uses a high-voltage criterion

start-up temperature comparisons reveal a plausibility problem

coolant sensor 3 low electrical input

Coolant sensor 3 high is a voltage-boundary diagnosis

coolant sensor 3 intermittent-connection monitoring

Coolant falls below the monitor temperature after warming up

Touareg V10 pump-injector circuit diagnosis

Cylinder 1 injector open-circuit feedback from the driver

An electrical opening in the cylinder 2 injector path

Cylinder 3 injector continuity as seen by the controller

injector 4 shows an open-load electrical pattern

the injector 5 driver sees too little current for its command

injector 6 fails the low-current open-circuit check

injector-circuit code with a source cylinder mismatch

an injector-circuit definition requiring cylinder verification

injector 1 current reaches its pull-in level at the wrong time

cylinder 2 injection timing refers to driver pull-in duration

injector 3 fails its electrical current-rise timing window

injector 4 current pull-in takes too little or too much time

injector 5 pull-in current timing is outside the permitted range

injector 6 has abnormal current pull-in duration

What an injector circuit code proves about cylinder 10

requested and delivered injection pulses disagree

Maxima overheating diagnosis separates cooling and sensor evidence

Sustained transmission sump heat needs a temperature history

Engine overspeed limits differ between the documented diesel examples

Cylinder 7 injection timing can mean the current pull-in interval

The cylinder 8 injector can fail a current-rise timing check

A secondary throttle processor can reject a signal that the primary accepts

Throttle sensor 2 rationality also uses the air-charge model

Throttle-position channel 2 below its reference-relative range

Throttle-position channel 2 above its allowed signal range

Intermittent throttle sensor B is different from an A/B mismatch

Sensor C refers to the second digital throttle in this Ford strategy

bank-2 throttle position checked against redundant evidence

bank-2 throttle sensor 1 voltage below range

A high bank 2 throttle-position input is not a position mismatch

A short interruption at the second throttle can precede a communication-loss code

The fuel pump power-relay circuit is not the pump pressure test

Low secondary fuel-pump circuit feedback needs the correct system context

High secondary fuel-pump circuit status is an electrical category

Overboost relative to demand or basic boost pressure

verify the VAG boost-regulation definition before testing

Boost-sensor plausibility across several airflow models

Boost-pressure signal below its electrical range

A high boost-sensor signal can also indicate an open circuit

Intercooler pump command and circuit feedback disagree

Intercooler coolant-pump control circuit held low

Intercooler coolant-pump control circuit held toward power

Compass pressure-plausibility warning during cold acceleration

Low pump current matters only with the pump commanded

Boost-sensor plausibility is checked with the engine stopped

Low boost-sensor voltage is distinct from low boost pressure

High boost-sensor voltage requires an electrical interpretation

Wastegate solenoid A open-circuit feedback while switched off

Confirm the boost-valve monitor before using a generic label

Wastegate solenoid A low-side output held toward ground

Wastegate solenoid A high feedback during an on command

An open wastegate-driver report requires a quiet diagnostic window

Hurricane wastegate performance fault and retaining-clip measurements

Wastegate output 1 low is reported by the H-bridge

Wastegate output 1 high identifies a short-to-supply report

Compass and Meridian diesel metering fault from harness chafing

A fuel-pump command circuit fault differs from invalid command data

The fuel pump module is reporting invalid control data

A low lift-pump control signal depends on the engine architecture

High feedback in the low-side fuel-pump control path

Brief boost-sensor excursions are counted across the trip

Cylinder 1 injector low-side circuit checked in the off state