What it means
A module reports a software version mismatch with the transmission range control module — typically after replacing one of the modules without programming the new unit to match the rest of the network.
At a glance
- Usually lights the warning light of the system that lost communication
- The engine or gearbox may go into limp mode
How it works
The transmission range control module reports the selected gear or range so the powertrain and other modules can respond correctly. This code sets when another module detects that the range controller’s software or calibration does not match the version expected by the vehicle.
Common causes
Most likely first.
- Module replaced without programming
- Wrong part number for the vehicle
- Gateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
How to diagnose it
- Scan the transmission range control module and the rest of the network, saving freeze-frame data and noting whether the fault followed transmission or module work.
- Verify that the range control module’s part and application match the vehicle’s transmission and configuration.
- Inspect the module connector, power and ground, and network wiring for poor contact, corrosion, or damage.
- Read the module’s software and calibration identification using a capable scan tool and compare it with the vehicle configuration.
- If the part and wiring are correct, check gateway routing and arrange the required vehicle-specific programming or configuration.
Common fixes
- Reconnect or repair a loose range control module connector or damaged network wire.
- Program or configure the transmission range control module for the vehicle.
- Replace an incorrectly specified range module with the correct application, then program it.
- Correct gateway routing or network communication faults affecting range information.
Can I keep driving?
The vehicle may select or report ranges incorrectly or enter a limited transmission mode. Avoid driving if gear selection is unpredictable or the vehicle will not stay in the selected range, and arrange prompt diagnosis.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.