Easy 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 talking to the part that checks how fast the engine is going.
The Transmission Control Module (TCM) is not receiving the correct engine speed signal.
The P0737 code is set when the TCM detects a problem with the engine speed output circuit. This circuit is responsible for sending the engine speed information to the TCM, which is crucial for proper transmission operation. A malfunction in this circuit can lead to transmission performance issues.
• Check Engine Light is on
• Transmission may not shift properly
• Poor fuel economy
• Faulty engine speed sensor
• Damaged wiring or connectors in the circuit
• Faulty TCM
TCM: Transmission Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the engine speed sensor and its wiring.
• Test the TCM for faults.
• Replace the engine speed sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Replace the TCM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly inspect and maintain wiring connections.
• Perform routine diagnostic checks.
• Keep the transmission system serviced.
Sensor Issue
• Avoid driving the vehicle until repaired to prevent further damage.
• Seek professional diagnostic services if unsure about repairs.
Check if your vehicle's powertrain warranty covers transmission components.
This code has been reported in vehicles with higher mileage, often due to wear and tear on electrical components.
Moderate – Addressing this issue promptly can prevent further transmission damage.
Driving with a malfunctioning transmission can lead to unsafe driving conditions.
• Vehicle at operating temperature
• Engine running and in gear
The engine speed sensor is typically located near the crankshaft or camshaft.
Q: Can I drive with a P0737 code?
A: It's not recommended as it can lead to transmission damage.
Q: How do I reset the Check Engine Light after a repair?
A: Use an OBD-II scanner to clear the codes after confirming the repair.
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