Short to voltage or a damaged wire on the range control circuit; Corroded, loose or water-contaminated connector at the range control component or transmission control unit; Faulty range selector, position sensor or range actuator giving a high signal; Low or unstable battery or charging voltage upsetting the circuit; Fault inside the transmission control unit or selector module; Outdated control unit software where the manufacturer has issued a known correction.

P07EB

Transmission Range Control A Circuit High.

Generic
Powertrain
Generic code
Medium severity

How this code is built

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

What it means

P07EB means the transmission control unit has detected a circuit high condition on the Transmission Range Control 'A' circuit. This circuit is involved in selecting or commanding the gear range (Park, Reverse, Neutral, Drive). The control unit saw a voltage or signal on that circuit higher than the expected operating range. The exact component behind 'A' (actuator, motor, position sensor or selector module) depends on the vehicle and transmission design.

Symptoms

Warning light on, possibly with a transmission or gearbox warning message
Gear selection not responding or delayed when moving the selector
Car stuck in one gear or in limp mode with reduced performance
Gear indicator on the dash flashing, wrong or missing
Engine not starting, or starting only in certain selector positions
Harsh or unexpected shifts

Possible causes

Short to voltage or a damaged wire on the range control circuitlikely
Corroded, loose or water-contaminated connector at the range control component or transmission control unitlikely
Faulty range selector, position sensor or range actuator giving a high signalpossible
Low or unstable battery or charging voltage upsetting the circuitpossible
Fault inside the transmission control unit or selector modulerare
Outdated control unit software where the manufacturer has issued a known correctionrare

How to diagnose

Read all stored and pending codes and record the freeze frame data, noting any other transmission, network or voltage codes
Check battery condition and charging voltage, as low or unstable voltage can cause circuit faults
Inspect the wiring and connectors to the range control component and transmission control unit for chafing, damage, corrosion, moisture or bent pins
Check the live data for the range selector position and range control signal while moving the selector, looking for stuck, erratic or maximum readings
Using the manufacturer's wiring diagram, test the circuit for short to voltage, and check the reference and ground feeds
Measure the signal voltage at the component and compare it with the specification for that model
Check for software updates or technical bulletins for that model and transmission
Clear the code and road test to see if it returns, rechecking live data afterwards

How to fix

Repair or replace damaged wiring that is shorted to voltage
Clean, repair or replace faulty connectors and terminals, and fix any water ingress
Replace the faulty range selector, sensor or actuator once testing confirms it
Correct battery or charging system faults
Replace or repair the transmission control unit or selector module only after the wiring and components are proven good
Update the control unit software if an outdated calibration is a known cause for that model

Can I keep driving?

Medium severity

The car may drive in limp mode or may not select gears reliably, so it should be repaired soon. Avoid driving if the car will not select gears reliably or will not hold Park, as that is a safety risk.

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