Faulty or misadjusted range sensor, selector position sensor or switch; Damaged wiring, poor connections or corrosion in the range control circuit; Range actuator or shift motor sticking, worn or failing; Low or unstable battery or system voltage affecting the circuit; Mechanical fault in the selector linkage, cable or internal gearbox shift mechanism; Faulty transmission control unit or shifter module, or outdated software where the manufacturer has a known fix.

P07E9

Transmission Range Control A Circuit Performance.

Generic
Powertrain
Generic code
High severity

How this code is built

P: SystemPowertrain
0: Defined bySAE, the same on every car
7: AreaTransmission
E9: FaultThe specific fault in that area

What it means

P07E9 is a generic powertrain code meaning the control unit has detected a performance problem in the transmission range control 'A' circuit. This circuit is used to select or confirm the gear range (park, reverse, neutral, drive), often through an electronic shifter or range actuator. The control unit set the code because the commanded range and the feedback it received did not agree, or the signal was outside the expected behaviour, though the exact monitoring method depends on the model and transmission.

Symptoms

Gearbox warning light or malfunction message on the dash
Gear selector not responding or range not engaging correctly
Car stuck in park, neutral or a single gear (limp mode)
Delayed or harsh engagement when selecting drive or reverse
Engine will not start or only starts in certain positions
Incorrect gear position shown on the display

Possible causes

Faulty or misadjusted range sensor, selector position sensor or switchlikely
Damaged wiring, poor connections or corrosion in the range control circuitlikely
Range actuator or shift motor sticking, worn or failingpossible
Low or unstable battery or system voltage affecting the circuitpossible
Mechanical fault in the selector linkage, cable or internal gearbox shift mechanismpossible
Faulty transmission control unit or shifter module, or outdated software where the manufacturer has a known fixrare

How to diagnose

Read all stored and pending codes and note the freeze frame data, including gear selected, vehicle speed and voltage
Check battery condition and charging voltage, and look for any other low voltage or communication codes
Inspect the selector, range sensor and actuator wiring and connectors for damage, water ingress, corrosion or loose pins
Check the selector linkage or cable for correct adjustment, wear and free movement where fitted
Watch live data for commanded range against actual range while moving the selector, and look for dropouts or implausible values
Test the circuit's power, ground and signal wiring against the manufacturer's data for the model, checking for shorts and high resistance
Test or road-test the range sensor and actuator following the manufacturer's procedure, as this varies by model and gearbox
Check for any applicable software updates or technical bulletins for the vehicle before considering the control unit

How to fix

Repair or replace damaged wiring, connectors or terminals in the range control circuit
Replace or correctly adjust the range sensor, selector switch or position sensor, and complete any required learn procedure
Replace the range actuator or shift motor if it is worn or sticking
Repair or replace the selector cable, linkage or shifter assembly if mechanically faulty
Correct battery or charging system faults to restore stable voltage
Update the control unit software where the manufacturer lists an outdated calibration as a known cause, or replace the unit if confirmed faulty

Can I keep driving?

High severity

Avoid driving until it has been checked, as the car may fail to select the correct range, get stuck in gear or fail to hold in park. If it is already in limp mode, only move it a short distance to a safe place or a workshop.

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