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.

Reductant Level Sensor C Circuit

Reductant Level Sensor C Circuit Range/Performance

level-channel-three low circuit is a discrete error report

channel-three circuit-high can mean open load or short to battery

Reductant Level Sensor C Circuit Intermittent/Erratic

Excessive Time To Enter Closed Loop NOx Adsorber Control

Closed Loop NOx Adsorber Control At Limit - Too High

NOx Adsorber - Over Temperature Bank 1

NOx Adsorber - Over Temperature Bank 2

Cold Start Cylinder 1 Injection Timing

Cold Start Cylinder 2 Injection Timing

Cold Start Cylinder 3 Injection Timing

Cold Start Cylinder 4 Injection Timing

Cold Start Cylinder 5 Injection Timing

Cold Start Cylinder 6 Injection Timing

Cold Start Cylinder 7 Injection Timing

Cold Start Cylinder 8 Injection Timing

Cold Start Cylinder 9 Injection Timing

Cold Start Cylinder 10 Injection Timing

Cold Start Cylinder 11 Injection Timing

Cold Start Cylinder 12 Injection Timing

Reductant heater relay open detection uses a commanded power-stage state

Reductant heater relay low-circuit detection uses excessive current

Reductant heater voltage remains present with the power stage off

available reductant level data stays too still during expected slosh

Reductant Level Sensor B Stuck

Reductant power-relay monitoring checks both commanded directions

Reductant Control Module Power Relay/Relays Control Circuit Low

Reductant Control Module Power Relay/Relays Control Circuit High

Reductant Control Module Supply Voltage Circuit

Comparing the reductant controller supply with reported vehicle voltage

The reductant control module reports supply voltage above its limit

A reductant quality-module low-supply code includes a wider voltage statement

Reductant Quality Module Performance

The injector B open-load check for cylinder 1

An injector B open-load code with an unresolved channel-to-cylinder mapping

Understanding the cylinder 3 injector B open-circuit category

Open-load evidence for injector B without assuming the source’s channel number

Keeping injector-channel identity separate from a cylinder 5 open-load label

The cylinder 6 injector B open-load test uses an inactive output

A cylinder 7 injector B open-load diagnosis with a separate document channel

Understanding the electrical evidence behind a cylinder 8 injector B open code

Cylinder 9 Injector B Circuit/Open

Cylinder 10 Injector B Circuit/Open

Cylinder 11 Injector B Circuit/Open

Cylinder 12 Injector B Circuit/Open

The injector B low-circuit label uses an internal off-state check

The cylinder 1 injector B high-circuit monitor uses active-stage current

tank heater 1 draws too little current while commanded on

Interpreting injector B circuit low while the channel mapping is unresolved

An injector B high-circuit report whose source channel needs mapping

How the cylinder 3 injector B low-circuit category differs from open load

Interpreting excessive active-stage current for cylinder 3 injector B

A low-circuit injector code whose document channel differs from its cylinder label

High injector current with cylinder 4 and channel 2 names kept separate

Keeping a cylinder 5 injector low-circuit report tied to verified evidence

An active injector-current fault with an unresolved channel identity

The cylinder 6 injector B low-circuit check depends on an inactive stage

The cylinder 6 injector B high-circuit check evaluates current under command

An injector low-circuit diagnosis with cylinder and channel numbering to resolve

High-circuit injector evidence without a guessed cylinder-to-channel conversion

Understanding injector B circuit low when the source uses a different channel number

The injector B high-circuit code whose document channel is numbered 4

Cylinder 9 Injector B Circuit Low

Cylinder 9 Injector B Circuit High

Cylinder 10 Injector B Circuit Low

Cylinder 10 Injector B Circuit High

Cylinder 11 Injector B Circuit Low

Cylinder 11 Injector B Circuit High

Cylinder 12 Injector B Circuit Low

Cylinder 12 Injector B Circuit High

Fuel Control System B Too Lean Off Idle Bank 1

Fuel Control System B Too Rich Off Idle Bank 1

Fuel Control System B Too Lean Off Idle Bank 2

Fuel Control System B Too Rich Off Idle Bank 2

Why bank 1’s lean idle code depends on the port-injection adaptation

Understanding a rich idle adaptation on bank 1’s PFI fuel path

Bank 2’s lean idle adaptation on the port-injection fuel path

A rich idle correction on bank 2’s port-fuel-injection path

Fuel Control System B Too Lean at Higher Load Bank 1