Low, degraded or contaminated transmission fluid; Faulty shift solenoid or valve body wear affecting the clutch or gear that is engaged or released in 6th; Worn or slipping clutch packs or internal transmission components (automatic, dual-clutch or automated manual); Faulty input or output shaft speed sensor giving a wrong ratio calculation; Wiring or connector fault in the transmission harness, such as chafing, water ingress or corrosion; Transmission control unit fault or low system voltage causing erratic shift control; Mechanical fault in the selector mechanism or actuators (manual-based or automated gearboxes, model dependent).

P07E1

Incorrect Shift from Gear 6.

Generic
Powertrain
Generic code
Medium severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
7: AreaTransmission
E1: FaultThe specific fault in that area

What it means

P07E1 means the transmission control unit commanded a shift out of 6th gear and the resulting gear ratio, worked out from input and output shaft speeds, did not match what was expected. The shift was judged incorrect, for example a slip, a flare, a failure to leave 6th or a shift into the wrong gear. The exact shift strategy and the gears affected depend on the transmission type and model.

Symptoms

Gearbox flares, slips or revs rise when changing down from 6th
Harsh, delayed or jerky downshift from 6th gear
Transmission stays in 6th gear or drops into limp mode
Gearbox warning light or engine management light on
Poor acceleration or higher fuel consumption on motorway runs

Possible causes

Low, degraded or contaminated transmission fluidlikely
Faulty shift solenoid or valve body wear affecting the clutch or gear that is engaged or released in 6thlikely
Worn or slipping clutch packs or internal transmission components (automatic, dual-clutch or automated manual)possible
Faulty input or output shaft speed sensor giving a wrong ratio calculationpossible
Wiring or connector fault in the transmission harness, such as chafing, water ingress or corrosionpossible
Transmission control unit fault or low system voltage causing erratic shift controlrare
Mechanical fault in the selector mechanism or actuators (manual-based or automated gearboxes, model dependent)rare

How to diagnose

Read all stored and pending codes and the freeze frame data, noting gear, speed, load and transmission temperature when the fault set
Check for related codes such as speed sensor, solenoid, communication or battery voltage faults and deal with those first
Check transmission fluid level and condition using the method specified for the vehicle, looking for burnt smell, dark colour or debris
Inspect the transmission wiring harness and connectors for damage, leaks, corrosion or poor pin tension
Check the battery and charging system, as low voltage can upset shift control
Use live data to compare input and output shaft speeds and commanded against actual gear during a 6th gear downshift
Test solenoid and speed sensor resistance and signals against the manufacturer's specification
Road test while logging data to see whether the slip or mis-shift is repeatable, then consider pressure tests or a transmission inspection as the model requires

How to fix

Correct the fluid level or replace degraded fluid with the specified type, and service the filter where fitted
Repair or replace damaged wiring, connectors or terminals in the transmission harness
Replace a faulty speed sensor or shift solenoid
Overhaul or repair the valve body, clutches or other internal components if wear or damage is confirmed
Repair the charging system or replace a weak battery if low voltage is contributing
Replace or repair the transmission control unit only after other causes are ruled out and the fault is confirmed

Can I keep driving?

Medium severity

The car can usually be driven gently for a short time to get it to a workshop, but avoid hard acceleration, towing and long motorway trips. If the gearbox slips badly, sticks in a gear or goes into limp mode, stop driving and get it checked, as continued use can cause costly internal damage.

Guide written by AI from the code's definition. Confirm with a diagnosis before replacing parts.