Transmission Trouble Codes: List & Fixes
P07xx to P09xx codes cover automatic and automated transmissions: shift solenoids, pressure control, the transmission range switch, input and output speed sensors, fluid temperature and gear ratio monitoring. Many transmissions go into limp mode to protect themselves, holding one gear until the fault is cleared. Checking fluid level and condition, where the design allows it, is a sensible first step before any electrical diagnosis.
57Codes
3.1Average severity
21%High or critical
0%DIY-friendly
Severity distribution
Most viewed
P0700
Powertrain
The transmission computer found a fault and asked for the check engine light – read the TCM…
Moderate
P0741
Powertrain
The torque converter lockup clutch slips or won't engage when the computer commands it.
Moderate
P0705
Powertrain
The computer can't make sense of the gear selector position signal – P, R, N, D may be misread.
Moderate
P0706
Powertrain
The range sensor works electrically, but its reading doesn't match where the lever and gears…
Moderate
P0707
Powertrain
The range sensor signal voltage is below its lowest valid value – usually a short to ground…
Moderate
P0710
Powertrain
The transmission computer lost a usable fluid temperature signal and is guessing…
Low
All codes (12)
P0218
Powertrain
The transmission fluid got hotter than the computer allows, from heavy load, low fluid…
High
P0730
Powertrain
The transmission computer sees input and output shaft speeds that don't fit the gear it…
High
P0742
Powertrain
The converter lockup clutch stays applied when it should be released, which can stall…
High
P0751
Powertrain
Solenoid A is wired fine but its valve isn't doing its job, so gears are missing – often stuck…
High
P0756
Powertrain
Solenoid B isn't moving fluid the way the TCM expects – the car may pull away in 3rd or 4th.
High
P07A3
Ford · Powertrain
The PowerShift's odd-gear clutch isn't letting go when the TCM commands it open, so the car…
High
P0868
Powertrain
Measured transmission line pressure is below what the TCM commanded – clutches can slip…
High
P0894
Powertrain
The transmission computer measured slip inside the gearbox that shouldn't be there. Clutches…
High
P1735
Volkswagen · Powertrain
The DSG control unit lost a valid signal from the sensor that tracks clutch 1 and locks out…
High
P175D
Volkswagen · Powertrain
The DSG computer saw clutch 1 let go while it was supposed to stay engaged, so it cut…
High
P1778
Nissan · Powertrain
The Jatco CVT's step motor is being commanded, but the pulley ratio isn't following it as it…
High
P17F0
Nissan · Powertrain
The TCM detected judder it blames on the CVT itself, usually belt or pulley slip inside…
High