DOCUMENTED DIAGNOSTIC CONTEXT

Diagnostic code articles — Page 36.

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.

Low digital output from transmission rod 5

When rod 5 feedback stays high instead of pulsing

Rod 5 pulse frequency outside its valid window

Unrequested rod 5 movement and repeated correction

Mazda CW6A-EL oil-pump shift-valve diagnosis

Invalid transmission learn data at initialization

Pacifica park-pawl performance and the 2017 hybrid update

excess exhaust pressure and the exhaust throttle position

oxygen drift against a modeled concentration

sensor 2 oxygen drift relative to sensor 1

the third oxygen channel and its sensor-2 reference

bank 2 upstream oxygen-sensor readiness in the GM monitor

Post-catalyst oxygen sensor fails an active response test

Bank 2 manifold pressure that fails a plausibility check

A low bank 2 manifold-pressure input

High voltage on the bank 2 manifold-pressure channel

EGR bypass overtemperature refers to the motor-driver stage

particulate sensor internal current-range checking

EcoBoost wastegate faults and the separately serviced actuator kit

The low-range wastegate position report for bank 1

Bank 1 wastegate position in the high diagnostic range

F-150 2.7L wastegate faults and a historical no-symptom case

Low-range feedback from the second wastegate channel

Bank 2 wastegate feedback reported above its accepted range

Wastegate bank 1 driver protection from current or heat

Current and temperature faults in the bank 2 wastegate driver

cold-soak comparison of reductant tank temperatures

a smart reductant temperature sensor reports an out-of-range low value

A high temperature report from the smart reductant tank sensor

Erratic reductant temperature measured over a moving window

Compass relay diagnosis when the auxiliary battery is depleted

Wagoneer starter-relay indication from an unseated connector

Cylinder 1 injection pulse lacks the expected opening signature

Cylinder 2 injector movement is not confirmed for a commanded pulse

Cylinder 3 injection pulses fail the opening-feedback check

Cylinder 4 injection pulses without the expected opening signature

Cylinder 1 opening feedback fails during catalyst warm-up

Cylinder 2 pulse delivery is questioned during catalyst warm-up

Cylinder 3 injector opening is not confirmed in the warm-up sequence

Cylinder 4’s cold-start injection pulse lacks opening evidence

Cylinder 5 pulse monitoring depends on feedback being ready

Cylinder 6 cold-start pulse evidence is not a fuel-balance measurement

Cylinder 7’s missing pulse signature needs the catalyst warm-up context

Cylinder 8 cold-start pulse thresholds belong to the actual calibration

Cylinder-one injection pulse offset exceeds its learning window

Cylinder-two offset learning is an energizing-time comparison

Cylinder-three pulse adaptation can fail in either timing direction

Cylinder-four learning must be judged during the calibration function

Cylinder-five pulse-offset learning is not injector data coding

Cylinder-six calibration detects a pulse duration beyond its target allowance

Cylinder-seven pulse learning differs from its injector circuit faults

Cylinder-eight pulse offset reaches a calibration limit

Sensor 5 circuit low uses a configurable resistance channel

A high-resistance coolant fault carries a sensor-mapping caveat

Intake profile-actuator open circuit is tested during an on command

A low intake-profile drive signal matters when the output is on

The intake profile circuit-high row contains conflicting command wording

An exhaust profile-actuator open result concerns the energized drive path

Exhaust profile-actuator circuit low is an on-state electrical finding

Resolve the exhaust actuator’s command-state conflict before testing high voltage

GM’s profile-performance row describes uncommanded pin movement

The exhaust profile monitor detects a pin moving without a command

An intake profile pin extends but does not return within the engine cycle

coolant flow valve motor-driver current above its limit

an open motor circuit at the coolant flow valve

coolant valve motor circuit classified as shorted to ground

coolant valve motor circuit classified as shorted to power

low supply at the coolant valve motor driver

coolant valve position data below its SENT range

coolant valve position data above its SENT range

coolant valve position fails to follow a settled request

Coolant valve needs high drive but does not reach its position

Pump supply-voltage status is separate from a low output circuit

An actuator-stuck report should not be reduced to an open circuit

Pump controller temperature is different from coolant temperature

An overspeed or dry-run classification is not direct proof of trapped air

A SENT status problem in bank 1 wastegate feedback

Bank 2 wastegate position data with invalid SENT status

charge-air cooler pump speed above its monitored range

understanding the pump underspeed monitor without misusing its threshold