P0938 OBD-II: Hydraulic Oil Temperature Sensor Range/Performance

P0938 Severity

Moderate

Will P0938 go away on its own?

Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.

For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.

Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.

Schedule Diagnosis

What causes OBD-II fault code P0938?

The clutch uses hydraulic pressure to engage and disengage the clutch as well as shift gears. The Hydraulic Oil Temperature Sensor tells the Transmission Control Module (TCM) the temperature of the system. If the sensor sends back an implausible signal, code P0938 is stored.

Need a P0938 diagnosis? Trust our experts.

RepairPal Certified shops provide expert diagnostics and repairs with transparent upfront pricing and a minimum 12-month or 12,000-mile warranty on all services.

OBD II Fault Code

  • OBD II P0938

OBD-II Code Transmission Control Module (TCM) failure is defined as a Hydraulic Oil Temperature Sensor Range/Performance

The clutch uses hydraulic pressure to engage and disengage the clutch as well as shift gears. The Hydraulic Oil Temperature Sensor tells the Transmission Control Module (TCM) the temperature of the system. If the sensor sends back an implausible signal, code P0938 is stored.

Common Problems That Trigger the P0938 Code

  • Hydraulic oil temperature sensor failure
  • Transmission Control Module (TCM) failure
  • Wiring issue
RepairPal Car Genius

Ask our experts about P0938.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts