Pro · Four-system diagnostics
FOXWELL Multi-System Scanner
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 AmazonEasy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is having trouble reading the temperature of the hydraulic oil, which is like the car's special fluid that helps certain parts move smoothly.
The P0937 code indicates a malfunction in the circuit that monitors the hydraulic oil temperature sensor, which is crucial for maintaining proper hydraulic system performance.
The P0937 code is triggered when the Powertrain Control Module (PCM) detects a problem with the hydraulic oil temperature sensor circuit. This sensor provides data to the PCM about the temperature of the hydraulic oil, which is essential for the proper operation of systems like the transmission or power steering. If the sensor or its circuit fails, it can lead to incorrect temperature readings and potential system malfunctions.
• Illuminated check engine light
• Erratic transmission shifting
• Overheating of hydraulic systems
• Faulty hydraulic oil temperature sensor
• Damaged wiring or connectors in the sensor circuit
• PCM issues or software glitches
PCM: Powertrain Control Module, the vehicle's main computer that controls engine and transmission functions.
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnosing and reporting.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the hydraulic oil temperature sensor for proper operation.
• Replace the hydraulic oil temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Update or reprogram the PCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance of the hydraulic system
• Routine checks of wiring and connectors
• Timely software updates for the PCM
Sensor Issue
• Do not ignore the check engine light.
• Seek professional diagnosis if unsure.
• Regularly monitor vehicle performance.
Check with your vehicle manufacturer as sensor-related issues may be covered under warranty.
This code has been associated with transmission issues in vehicles with complex hydraulic systems.
Moderate – While it may not cause immediate damage, addressing this issue promptly can prevent further complications.
Ignoring this code can lead to unsafe driving conditions. Always address vehicle warnings promptly.
• Engine at operating temperature
• Vehicle in park or neutral
The hydraulic oil temperature sensor is typically located in or near the hydraulic fluid reservoir or transmission housing.
Q: Can I drive with a P0937 code?
A: It's not recommended to drive for extended periods with this code, as it can lead to transmission or hydraulic system issues.
Q: How do I reset the P0937 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is resolved, the code should not return.
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.
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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.