Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the car's computer that helps you switch gears manually. It's like the car's brain is getting too much information when you try to change gears yourself.
The P0958 code indicates that the transmission control module (TCM) is detecting a high voltage in the auto shift manual mode circuit.
The auto shift manual mode allows the driver to manually select gears in an automatic transmission. The TCM monitors the circuit responsible for this function. If it detects a voltage level higher than the expected range, it triggers the P0958 code.
• Check Engine Light is on
• Inability to switch to manual mode
• Erratic shifting
• Faulty shift lever assembly
• Short circuit in the wiring
• Defective transmission control module (TCM)
TCM: Transmission Control Module
OBD-II: On-Board Diagnostics II
• Check for any other related codes and clear them.
• Inspect the wiring and connectors for damage or short circuits.
• Test the shift lever assembly for proper function.
• Repair or replace damaged wiring or connectors.
• Replace the faulty shift lever assembly.
• Reprogram or replace the TCM if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect the transmission wiring.
• Avoid harsh driving conditions.
• Perform routine transmission maintenance.
Transmission Control
• Avoid using manual mode until the issue is resolved.
• Consult with a professional mechanic for accurate diagnosis.
Check with your dealer if the transmission components are still under warranty.
This code has been associated with issues in vehicles with manual shift mode, particularly in models with electronic shift controls.
Moderate – While the vehicle may still operate, manual shifting issues can lead to further transmission problems if not addressed.
Driving with unresolved transmission issues can lead to unsafe driving conditions. Address the issue promptly.
• Vehicle in park with engine running.
• Attempt to engage manual shift mode.
The shift lever assembly is typically located on the center console or steering column, depending on the vehicle model.
Q: Can I drive my car with a P0958 code?
A: It's possible, but you may experience shifting issues. It's best to have it checked by a mechanic.
Q: Will fixing this code improve my car's performance?
A: Yes, resolving the issue can restore proper shifting and improve overall driving experience.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
Chassis and ABS faults usually need a scanner that can read brake-system data directly.
View on Amazon
Universal · Torque wrench
Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.
Useful when wheel, hub, or suspension hardware needs correct reassembly torque.
View on Amazon
Universal · Drive-on ramps
Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.
Helpful for safer access during underbody inspection work.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.