DOCUMENTED DIAGNOSTIC CONTEXT

Diagnostic code articles — Page 26.

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.

Integra A/T–FI signal B high input

Ford F-Series wastegate driver detects an electrical fault

the Jeep transmission controller has lost engine messages

Jaguar AJ27 adaptive-cruise CAN communication fault

Jaguar adaptive-cruise headway-switch fault

Subaru torque-cut signal circuit low

Subaru torque-cut signal circuit high

Jaguar 5 HP 24 conflicting transmission fallback requests

Subaru cruise-set signal to the transmission

Ford brake-pedal signal does not match the self-test sequence

The kick-down switch F8 circuit malfunctions

Ford transmission-range self-test depends on the transmission application

Altima park-neutral input fails to change during use

Ford park-neutral or clutch input remains high when low is expected

Subaru torque-control signal 1 circuit fault

Subaru torque-control signal 2 circuit fault

Ford transmission temperature stays implausibly low

Ford shift-solenoid A movement signature is missing

Ford shift-solenoid B lacks its movement current signature

Ford shift-solenoid C movement signature is missing

Ford shift-solenoid D lacks its expected current signature

Ford transmission temperature stays implausibly high

Jaguar loss of both transmission and wheel-speed information

Jaguar 5 HP 24 stall-speed failure

Jaguar 5 HP 24 engine-overspeed malfunction

Ford does not see the expected low-range switch state

Jaguar 5 HP 24 gear-control fault after a ratio warning

1994 Mustang misses the expected 1–2 shift rpm drop

1994 Mustang 2–3 shift lacks its expected rpm change

1994 Mustang 3–4 shift result does not match the command

Jaguar fifth-gear control failure and fourth-gear fallback

Honda second clutch pressure switch circuit diagnosis

Honda third clutch pressure switch feedback checks

Ford torque-converter clutch appears stuck on

A transmission pressure-control valve electrical fault

Ford torque-converter clutch fails its functional slip check

Jaguar 5 HP 24 pressure-regulator-one electrical fault

Volkswagen transmission relay fault and low voltage at J743

Ford electronic pressure-control current is below command

Jaguar 5 HP 24 pressure-regulator-five circuit fault

The transmission controller recognizes incorrect coding

Transmission supply voltage is outside the usable range

1994 Mustang California shift-solenoid 1 functional failure

Transmission supply voltage fluctuates excessively

1994 Mustang California shift-solenoid 2 functional failure

distinguish real governor pressure from a false Jeep reading

Jaguar combined pressure-regulator current fault

Altima overrun-clutch solenoid circuit response is abnormal

The shift-lock solenoid circuit is shorted to ground

the Jeep governor-pressure baseline is out of range

the Jeep governor-pressure signal is electrically high

a low Jeep governor-pressure signal is not zero pressure proof

the Jeep transmission relay command circuit disagrees

Honda clutch pressure solenoid A electrical fault

Passat transmission load-signal wiring and shared recipients

Passat load-signal ground shorts can originate on a shared branch

Honda solenoid B circuit: resistance, supply and ground checks

Jaguar transmission request for the check-engine warning

Jaguar transmission torque-reduction request lasts too long

Jaguar transmission torque-reduction signal circuit

Transmission torque-request signal reaches its fault region

Ford transmission-control switch was not cycled during self-test

Ford low-range switch is outside its self-test expectation

Ford 6R140 transmission fluid exceeds its overtemperature limit

The engine-to-transmission change signal is open or grounded

The change-up/down signal is shorted toward supply

Jaguar 5 HP 24 ignition supply in the low-voltage band

Honda transmission-controller throttle input fault

Jaguar 4L80-E throttle-position signal to the transmission

Jaguar ZF 4 HP 24 sport-mode indicator circuit

Honda MAP signal at the transmission controller

Jaguar AJ16 low ECM battery supply

Invalid throttle-blade position received over CAN

Jaguar 5 HP 24 CAN circuit malfunction

Jaguar transmission missing the ECM CAN message

Jaguar transmission missing the instrument-pack CAN message

Pressure-switch states conflict with operating conditions

Shift duration remains long at maximum adaptation

Volkswagen pressure valve 1 open or grounded: N215 and N91 naming

Volkswagen pressure valve 1 short to positive and the 01V connector